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24 Commits

Author SHA1 Message Date
Peter Conrad
6cf468bcd0 Went through log and fixed as much as I could 2018-06-08 09:31:36 -07:00
Peter Conrad
834efa2fb1 Hunting down the last of the weird white spaces that cause errors. 2018-01-09 16:20:54 -08:00
Noah Swartz
4e23f91b95 fix whitespaces
Signed-off-by: Peter Conrad <pconrad@pconrad-ltm6.internal.salesforce.com>
2017-12-20 15:00:57 -08:00
Peter Conrad
ddad4ce4c6 Attempting to fix build errors. 2017-12-20 13:35:44 -08:00
Peter Conrad
1e8db70670 Adding new RST files 2017-12-15 11:27:59 -08:00
Peter Conrad
eff373f7ec Restructured RST files significantly. Next commit will be a pass through the content. 2017-12-15 11:27:00 -08:00
Peter Conrad
3a8ffc3589 Merge https://github.com/certbot/certbot
Merging so I can begin restructuring work.
2017-11-16 11:58:03 -08:00
Peter Conrad
defdf39701 Committing before git pull to make merge error go away 2017-11-16 11:57:56 -08:00
Peter Conrad
bccd3e1191 Making sure my fork is in sync. Merge https://github.com/certbot/certbot 2017-07-20 13:36:28 -07:00
Peter Conrad
7150e150a4 Fixing --expand example in using.rst and adding to Apache/NGINX bullet in challenges.rst 2017-07-07 15:25:30 -07:00
Peter Conrad
fa172f4a97 Finally going after those last few comments before the restructuring of the plugin stuff (coming soon) 2017-07-06 15:21:27 -07:00
Peter Conrad
4899177fdd Incorpoprating feedback from #4370 2017-06-14 16:10:06 -07:00
Peter Conrad
8437408b20 Edits to what.rst and challenges.rst to resolve #3664 and #4153 2017-06-02 14:47:22 -07:00
Peter Conrad
87c66211a5 Pushing some changes, not done yet but want these to be visible 2017-06-01 17:01:17 -07:00
Peter Conrad
65e94a14a2 Initial edit pass through challenges.rst 2017-05-11 15:28:39 -07:00
Peter Conrad
198d513b7b Merge https://github.com/certbot/certbot
Getting ready to make edits
2017-05-11 14:04:06 -07:00
Peter Conrad
e9f6f1853d Edits to using.rst related to --expand 2017-05-11 14:01:42 -07:00
Peter Conrad
efb6929bdd Pulling everything down so I can work on challenges.rst
Merge https://github.com/certbot/certbot
2017-04-20 15:54:16 -07:00
Peter Conrad
23aef2b08a Responding to St_Ranger's comment on 4370 2017-04-14 09:34:41 -07:00
Peter Conrad
9424d0b147 Bigger link to instruction generator in intro.rst, some edits to what.rst in response to comments on What is a Certificate? section first draft #4370 2017-04-13 14:14:17 -07:00
Peter Conrad
24ec878992 Pulling down the upstream repo just to be sure.
Merge https://github.com/certbot/certbot
2017-04-13 13:03:06 -07:00
Peter Conrad
94447a41a5 Merge https://github.com/certbot/certbot 2017-04-06 14:07:56 -07:00
Peter Conrad
1f50c4650a adding what.rst to index.rst 2017-03-17 13:41:22 -07:00
Peter Conrad
5f940ca322 Adding 'What Is a Certificate' section 2017-03-17 13:37:47 -07:00
12 changed files with 745 additions and 625 deletions

View File

@@ -4,7 +4,10 @@ Certbot is part of EFFs effort to encrypt the entire Internet. Secure communi
Anyone who has gone through the trouble of setting up a secure website knows what a hassle getting and maintaining a certificate is. Certbot and Lets Encrypt can automate away the pain and let you turn on and manage HTTPS with simple commands. Using Certbot and Let's Encrypt is free, so theres no need to arrange payment. Anyone who has gone through the trouble of setting up a secure website knows what a hassle getting and maintaining a certificate is. Certbot and Lets Encrypt can automate away the pain and let you turn on and manage HTTPS with simple commands. Using Certbot and Let's Encrypt is free, so theres no need to arrange payment.
How you use Certbot depends on the configuration of your web server. The best way to get started is to use our `interactive guide <https://certbot.eff.org>`_. It generates instructions based on your configuration settings. In most cases, youll need `root or administrator access <https://certbot.eff.org/faq/#does-certbot-require-root-administrator-privileges>`_ to your web server to run Certbot. .. Note:: The best way to get started is to use our `interactive Guide <https://certbot.eff.org>`_.
The Interactive Guide generates instructions based on your web server and operating system.
In most cases, youll need `root or administrator access <https://certbot.eff.org/faq/#does-certbot-require-root-administrator-privileges>`_ to your web server to run Certbot.
If youre using a hosted service and dont have direct access to your web server, you might not be able to use Certbot. Check with your hosting provider for documentation about uploading certificates or using certificates issued by Lets Encrypt. If youre using a hosted service and dont have direct access to your web server, you might not be able to use Certbot. Check with your hosting provider for documentation about uploading certificates or using certificates issued by Lets Encrypt.
@@ -22,6 +25,13 @@ Until May 2016, Certbot was named simply ``letsencrypt`` or ``letsencrypt-auto``
depending on install method. Instructions on the Internet, and some pieces of the depending on install method. Instructions on the Internet, and some pieces of the
software, may still refer to this older name. software, may still refer to this older name.
Certbot is packaged for many common operating systems and web servers. Check whether
``certbot`` (or ``letsencrypt``) is packaged for your web server's OS by visiting
certbot.eff.org_, where you will also find the correct installation instructions for
your system.
Contributing Contributing
------------ ------------
@@ -46,16 +56,18 @@ In many cases, you can just run ``certbot-auto`` or ``certbot``, and the
client will guide you through the process of obtaining and installing certs client will guide you through the process of obtaining and installing certs
interactively. interactively.
For full command line help, you can type:: For full command line help, you can type
./certbot-auto --help all ::
  ./certbot-auto --help all
You can also tell it exactly what you want it to do from the command line. You can also tell it exactly what you want it to do from the command line.
For instance, if you want to obtain a cert for ``example.com``, For instance, if you want to obtain a cert for ``example.com``,
``www.example.com``, and ``other.example.net``, using the Apache plugin to both ``www.example.com``, and ``other.example.net``, using the Apache plugin to both
obtain and install the certs, you could do this:: obtain and install the certs, you could do this
::
./certbot-auto --apache -d example.com -d www.example.com -d other.example.net ./certbot-auto --apache -d example.com -d www.example.com -d other.example.net
(The first time you run the command, it will make an account, and ask for an (The first time you run the command, it will make an account, and ask for an
@@ -63,16 +75,17 @@ email and agreement to the Let's Encrypt Subscriber Agreement; you can
automate those with ``--email`` and ``--agree-tos``) automate those with ``--email`` and ``--agree-tos``)
If you want to use a webserver that doesn't have full plugin support yet, you If you want to use a webserver that doesn't have full plugin support yet, you
can still use "standalone" or "webroot" plugins to obtain a certificate:: can still use "standalone" or "webroot" plugins to obtain a certificate
./certbot-auto certonly --standalone --email admin@example.com -d example.com -d www.example.com -d other.example.net ::
  ./certbot-auto certonly --standalone --email admin@example.com -d example.com -d www.example.com -d other.example.net
Understanding the client in more depth Understanding the client in more depth
-------------------------------------- --------------------------------------
To understand what the client is doing in detail, it's important to To understand what the client is doing in detail, it's important to
understand the way it uses plugins. Please see the `explanation of understand the way it uses plugins.  Please see the `explanation of
plugins <https://certbot.eff.org/docs/using.html#plugins>`_ in plugins <https://certbot.eff.org/docs/using.html#plugins>`_ in
the User Guide. the User Guide.
@@ -104,20 +117,24 @@ ACME working area in github: https://github.com/ietf-wg-acme/acme
.. _Freenode: https://webchat.freenode.net?channels=%23letsencrypt .. _Freenode: https://webchat.freenode.net?channels=%23letsencrypt
.. |build-status| image:: https://travis-ci.org/certbot/certbot.svg?branch=master .. |build-status| image:: https://travis-ci.org/certbot/certbot.svg?branch=master
:target: https://travis-ci.org/certbot/certbot    :target: https://travis-ci.org/certbot/certbot
:alt: Travis CI status    :alt: Travis CI status
.. |coverage| image:: https://coveralls.io/repos/certbot/certbot/badge.svg?branch=master .. |coverage| image:: https://coveralls.io/repos/certbot/certbot/badge.svg?branch=master
:target: https://coveralls.io/r/certbot/certbot    :target: https://coveralls.io/r/certbot/certbot
:alt: Coverage status    :alt: Coverage status
.. |docs| image:: https://readthedocs.org/projects/letsencrypt/badge/ .. |docs| image:: https://readthedocs.org/projects/letsencrypt/badge/
:target: https://readthedocs.org/projects/letsencrypt/    :target: https://readthedocs.org/projects/letsencrypt/
:alt: Documentation status    :alt: Documentation status
.. |container| image:: https://quay.io/repository/letsencrypt/letsencrypt/status .. |container| image:: https://quay.io/repository/letsencrypt/letsencrypt/status
:target: https://quay.io/repository/letsencrypt/letsencrypt    :target: https://quay.io/repository/letsencrypt/letsencrypt
:alt: Docker Repository on Quay.io    :alt: Docker Repository on Quay.io
.. Do not modify this comment unless you know what you're doing. tag:links-end .. Do not modify this comment unless you know what you're doing. tag:links-end
@@ -143,13 +160,12 @@ Current Features
- other server software via `third party plugins <https://certbot.eff.org/docs/using.html#third-party-plugins>`_ - other server software via `third party plugins <https://certbot.eff.org/docs/using.html#third-party-plugins>`_
* The private key is generated locally on your system. * The private key is generated locally on your system.
* Can talk to the Let's Encrypt CA or optionally to other ACME * Can talk to the Let's Encrypt CA or optionally to other ACME-compliant services.
compliant services.
* Can get domain-validated (DV) certificates. * Can get domain-validated (DV) certificates.
* Can revoke certificates. * Can revoke certificates.
* Adjustable RSA key bit-length (2048 (default), 4096, ...). * Adjustable RSA key bit-length (2048 (default), 4096, ...).
* Can optionally install a http -> https redirect, so your site effectively * Can optionally install a http -> https redirect, so your site effectively
runs https only (Apache only) runs HTTPS only (Apache only)
* Fully automated. * Fully automated.
* Configuration changes are logged and can be reverted. * Configuration changes are logged and can be reverted.
* Supports an interactive text UI, or can be driven entirely from the * Supports an interactive text UI, or can be driven entirely from the
@@ -159,3 +175,5 @@ Current Features
.. Do not modify this comment unless you know what you're doing. tag:features-end .. Do not modify this comment unless you know what you're doing. tag:features-end
For extensive documentation on using and contributing to Certbot, go to https://certbot.eff.org/docs. If you would like to contribute to the project or run the latest code from git, you should read our `developer guide <https://certbot.eff.org/docs/contributing.html>`_. For extensive documentation on using and contributing to Certbot, go to https://certbot.eff.org/docs. If you would like to contribute to the project or run the latest code from git, you should read our `developer guide <https://certbot.eff.org/docs/contributing.html>`_.

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@@ -1,56 +1,53 @@
.. _challenges:
Challenges Challenges
========== ==========
To receive a certificate from Let's Encrypt certificate authority (CA), you must pass a *challenge* to To receive a certificate from Let's Encrypt certificate authority (CA), you must pass a *challenge_* to
prove you control each of the domain names that will be listed in the certificate. A challenge is one of prove you control each of the domain names that will be listed in the certificate. A challenge is one of
three tasks that only someone who controls the domain should be able to accomplish: three tasks that only someone who controls the domain should be able to accomplish:
* Posting a specified file in a specified location on a web site (the HTTP-01 challenge) * Posting a specified file in a specified location on a web site (See the IETF draft of the `HTTP-01`_ challenge)
* Offering a specified temporary certificate on a web site (the TLS-SNI-01 challenge) * Offering a specified temporary certificate on a web site (See the IETF draft of the `TLS-SNI-01`_ challenge)
* Posting a specified DNS record in the domain name system (the DNS-01 challenge) * Posting a specified DNS record in the domain name system (See the IETF draft of the `DNS-01`_ challenge)
The DNS-01 challenge, in particular, requires configuration of a DNS server on
port 53, though that's often not the same machine as your webserver.
Its possible to complete each type of challenge *automatically* (Certbot directly makes the necessary Its possible to complete each type of challenge *automatically* (Certbot directly makes the necessary
changes itself, or runs another program that does so), or *manually* (Certbot tells you to make a changes itself, or runs another program that does so), or *manually* (Certbot tells you to make a
certain change, and you edit a configuration file of some kind in order to accomplish it). Certbot's certain change, and you edit a configuration file of some kind in order to accomplish it). Certbot's
design favors performing challenges automatically, and this is the normal case for most users of Certbot. design favors performing challenges automatically, and this is the normal case for most users of Certbot.
Some plugins offer an *authenticator*, meaning that they can satisfy challenges: .. _TLS-SNI-01: https://tools.ietf.org/html/draft-ietf-acme-acme-03#section-7.3
.. _HTTP-01: https://tools.ietf.org/html/draft-ietf-acme-acme-03#section-7.2
.. _DNS-01: https://tools.ietf.org/html/draft-ietf-acme-acme-03#section-7.4
* Apache plugin: (TLS-SNI-01) Tries to edit your Apache configuration files to temporarily serve
a Certbot-generated certificate for a specified name. Use the Apache plugin when you're running
Certbot on a web server with Apache listening on port 443.
* NGINX plugin: (TLS-SNI-01) Tries to edit your NGINX configuration files to temporarily serve a
Certbot-generated certificate for a specified name. Use the NGINX plugin when you're running
Certbot on a web server with NGINX listening on port 443.
* Webroot plugin: (HTTP-01) Tries to place a file where it can be served over HTTP on port 80 by a
web server running on your system. Use the Webroot plugin when you're running Certbot on
a web server with any server application listening on port 80 serving files from a folder on disk in response.
* Standalone plugin: (TLS-SNI-01 or HTTP-01) Tries to run a temporary web server listening on either HTTP on
port 80 (for HTTP-01) or HTTPS on port 443 (for TLS-SNI-01). Use the Standalone plugin if no existing program
is listening to these ports. Choose TLS-SNI-01 or HTTP-01 using the `--preferred-challenges` option.
* Manual plugin: (DNS-01 or HTTP-01) Either tells you what changes to make to your configuration or updates
your DNS records using an external script (for DNS-01) or your webroot (for HTTP-01). Use the Manual
plugin if you have the technical knowledge to make configuration changes yourself when asked to do so.
Tips for Challenges Tips for Challenges
------------------- -------------------
General tips: General tips:
* Run Certbot on your web server, not on your laptop or another server. Its usually the easiest way to get a certificate. * Run Certbot on your web server, not on your laptop or another server. Its usually the easiest way to get a certificate.
* Use a tool like the DNSchecker at dnsstuff.com to check your DNS records to make sure * Use a tool like the DNSchecker at dnsstuff.com to check your DNS records to make sure
there are no serious errors. A DNS error can prevent a certificate authority from there are no serious errors. A DNS error can prevent a certificate authority from
issuing a certificate, even if it does not prevent your site from loading in a browser. issuing a certificate, even if it does not prevent your site from loading in a browser.
* If you are using Apache or NGINX plugins, make sure the configuration of your Apache or NGINX server is correct. * If you are using Apache or NGINX plugins, make sure the configuration of your Apache or NGINX server is correct.
.. _http_01_challenge:
HTTP-01 Challenge HTTP-01 Challenge
~~~~~~~~~~~~~~~~~ ^^^^^^^^^^^^^^^^^
* Make sure the domain name exists and is already pointed to the public IP address of the server where * Make sure the domain name exists and is already pointed to the public IP address of the server where
youre requesting the certificate. youre requesting the certificate.
* Make sure port 80 is open, publicly reachable from the Internet, and not blocked by a router or firewall. * Make sure port 80 is open, publicly reachable from the Internet, and not blocked by a router or firewall.
* When using the Webroot plugin or the manual plugin, make sure the the webroot directory exists and that you * When using the Webroot plugin or the manual plugin, make sure the the webroot directory exists and that you
specify it properly. If you set the webroot directory for example.com to `/var/www/example.com` specify it properly. If you set the webroot directory for example.com to `/var/www/example.com`
then a file placed in `/var/www/example.com/.well-known/acme-challenge/testfile` should appear on then a file placed in `/var/www/example.com/.well-known/acme-challenge/testfile` should appear on
your web site at `http://example.com/.well-known/acme-challenge/testfile` (A redirection to HTTPS your web site at `http://example.com/.well-known/acme-challenge/testfile` (A redirection to HTTPS
is OK here and should not stop the challenge from working.) is OK here and should not stop the challenge from working.)
* In some web server configurations, all pages are dynamically generated by some kind of framework, * In some web server configurations, all pages are dynamically generated by some kind of framework,
@@ -63,8 +60,11 @@ HTTP-01 Challenge
* When using the Standalone plugin, make sure another program is not already listening to port 80 on the server. * When using the Standalone plugin, make sure another program is not already listening to port 80 on the server.
* When using the Webroot plugin, make sure there is a web server listening on port 80. * When using the Webroot plugin, make sure there is a web server listening on port 80.
.. _tls_sni_01_challenge:
TLS-SNI-01 Challenge TLS-SNI-01 Challenge
~~~~~~~~~~~~~~~~~~~~ ^^^^^^^^^^^^^^^^^^^^
* The TLS-SNI-01 challenge doesnt work with content delivery networks (CDNs) * The TLS-SNI-01 challenge doesnt work with content delivery networks (CDNs)
like CloudFlare and Akamai because the domain name is pointed at the CDN, not directly at your server. like CloudFlare and Akamai because the domain name is pointed at the CDN, not directly at your server.
@@ -77,9 +77,14 @@ TLS-SNI-01 Challenge
In that case, please file a bug to help us improve certbot! In that case, please file a bug to help us improve certbot!
* When using the Standalone plugin, make sure another program is not already listening to port 443 on the server. * When using the Standalone plugin, make sure another program is not already listening to port 443 on the server.
.. _dns_01_challenge:
DNS-01 Challenge DNS-01 Challenge
~~~~~~~~~~~~~~~~ ^^^^^^^^^^^^^^^^
* When using the manual plugin, make sure your DNS records are correctly updated; * When using the manual plugin, make sure your DNS records are correctly updated;
you must be able to make appropriate changes to your DNS zone in order to pass the challenge. you must be able to make appropriate changes to your DNS zone in order to pass the challenge.

92
docs/configure.rst Normal file
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@@ -0,0 +1,92 @@
Configuration Files
=====================
.. contents:: Table of Contents
:local:
This is another new section that will talk about what can be configured and will explain
the interaction between the renewal configuration file and the global configuration file.
The text about the global configuration file has been moved here from using.rst
.. _renewal-config-file:
Renewal Configuration File
Modifying the Renewal Configuration File
----------------------------------------
When a certificate is issued, by default Certbot creates a renewal configuration file that
tracks the options that were selected when Certbot was run. This allows Certbot
to use those same options again when it comes time for renewal. These renewal
configuration files are located at ``/etc/letsencrypt/renewal/CERTNAME``.
For advanced certificate management tasks, it is possible to manually modify the certificate's
renewal configuration file, but this is discouraged since it can easily break Certbot's
ability to renew your certificates. If you choose to modify the renewal configuration file
we advise you to test its validity with the ``certbot renew --dry-run`` command.
.. warning:: Modifying any files in ``/etc/letsencrypt`` can damage them so Certbot can no longer properly manage its certificates, and we do not recommend doing so.
For most tasks, it is safest to limit yourself to pointing symlinks at the files there, or using
``--deploy-hook`` to copy / make new files based upon those files, if your operational situation requires it
(for instance, combining certificates and keys in different way, or having copies of things with different
specific permissions that are demanded by other programs).
If the contents of ``/etc/letsencrypt/archive/CERTNAME`` are moved to a new folder, first specify
the new folder's name in the renewal configuration file, then run ``certbot update_symlinks`` to
point the symlinks in ``/etc/letsencrypt/live/CERTNAME`` to the new folder.
If you would like the live certificate files whose symlink location Certbot updates on each run to
reside in a different location, first move them to that location, then specify the full path of
each of the four files in the renewal configuration file. Since the symlinks are relative links,
you must follow this with an invocation of ``certbot update_symlinks``.
For example, say that a certificate's renewal configuration file previously contained the following
directives::
archive_dir = /etc/letsencrypt/archive/example.com
cert = /etc/letsencrypt/live/example.com/cert.pem
privkey = /etc/letsencrypt/live/example.com/privkey.pem
chain = /etc/letsencrypt/live/example.com/chain.pem
fullchain = /etc/letsencrypt/live/example.com/fullchain.pem
The following commands could be used to specify where these files are located::
mv /etc/letsencrypt/archive/example.com /home/user/me/certbot/example_archive
sed -i 's,/etc/letsencrypt/archive/example.com,/home/user/me/certbot/example_archive,' /etc/letsencrypt/renewal/example.com.conf
mv /etc/letsencrypt/live/example.com/*.pem /home/user/me/certbot/
sed -i 's,/etc/letsencrypt/live/example.com,/home/user/me/certbot,g' /etc/letsencrypt/renewal/example.com.conf
certbot update_symlinks
.. _config-file:
Global Configuration File
=========================
Certbot accepts a global configuration file that applies its options to all invocations
of Certbot. Certificate specific configuration choices should be set in the ``.conf``
files that can be found in ``/etc/letsencrypt/renewal``.
By default no cli.ini file is created, after creating one
it is possible to specify the location of this configuration file with
``certbot-auto --config cli.ini`` (or shorter ``-c cli.ini``). An
example configuration file is shown below:
.. include:: ../examples/cli.ini
:code: ini
By default, the following locations are searched:
- ``/etc/letsencrypt/cli.ini``
- ``$XDG_CONFIG_HOME/letsencrypt/cli.ini`` (or ``~/.config/letsencrypt/cli.ini`` if ``$XDG_CONFIG_HOME`` is not set).
Since this configuration file applies to all invocations of certbot it is incorrect
to list domains in it. Listing domains in cli.ini may prevent renewal from working.
Additionally due to how arguments in cli.ini are parsed, options which wish to
not be set should not be listed. Options set to false will instead be read
as being set to true by older versions of Certbot, since they have been listed
in the config file.
.. keep it up to date with constants.py

View File

@@ -20,7 +20,7 @@ running:
.. code-block:: shell .. code-block:: shell
git clone https://github.com/certbot/certbot git clone https://github.com/certbot/certbot
If you're on macOS, we recommend you skip the rest of this section and instead If you're on macOS, we recommend you skip the rest of this section and instead
run Certbot in Docker. You can find instructions for how to do this :ref:`here run Certbot in Docker. You can find instructions for how to do this :ref:`here
@@ -31,17 +31,17 @@ a new plugin is introduced.
.. code-block:: shell .. code-block:: shell
cd certbot cd certbot
./certbot-auto --os-packages-only ./certbot-auto --os-packages-only
./tools/venv.sh ./tools/venv.sh
Then in each shell where you're working on the client, do: Then in each shell where you're working on the client, do:
.. code-block:: shell .. code-block:: shell
source ./venv/bin/activate source ./venv/bin/activate
export SERVER=https://acme-staging.api.letsencrypt.org/directory export SERVER=https://acme-staging.api.letsencrypt.org/directory
source tests/integration/_common.sh source tests/integration/_common.sh
After that, your shell will be using the virtual environment, and you run the After that, your shell will be using the virtual environment, and you run the
client by typing `certbot` or `certbot_test`. The latter is an alias that client by typing `certbot` or `certbot_test`. The latter is an alias that
@@ -123,8 +123,8 @@ Boulder:
.. code-block:: shell .. code-block:: shell
export SERVER=http://localhost:4000/directory export SERVER=http://localhost:4000/directory
source tests/integration/_common.sh source tests/integration/_common.sh
Run the integration tests using: Run the integration tests using:
@@ -264,7 +264,7 @@ the virtualenv used by `certbot-auto`, but they will be wiped away when
it with any necessary API changes. it with any necessary API changes.
.. _`setuptools entry points`: .. _`setuptools entry points`:
http://setuptools.readthedocs.io/en/latest/pkg_resources.html#entry-points http://setuptools.readthedocs.io/en/latest/pkg_resources.html#entry-points
.. _coding-style: .. _coding-style:
@@ -277,27 +277,26 @@ Please:
2. Read `PEP 8 - Style Guide for Python Code`_. 2. Read `PEP 8 - Style Guide for Python Code`_.
3. Follow the `Google Python Style Guide`_, with the exception that we 3. Follow the `Google Python Style Guide`_, with the exception that we use `Sphinx-style`_ documentation::
use `Sphinx-style`_ documentation::
def foo(arg): def foo(arg):
"""Short description. """Short description.
:param int arg: Some number. :param int arg: Some number.
:returns: Argument :returns: Argument
:rtype: int :rtype: int
""" """
return arg return arg
4. Remember to use ``pylint``. 4. Remember to use ``pylint``.
.. _Google Python Style Guide: .. _Google Python Style Guide: https://google.github.io/styleguide/pyguide.html
https://google.github.io/styleguide/pyguide.html
.. _Sphinx-style: http://sphinx-doc.org/ .. _Sphinx-style: http://sphinx-doc.org/
.. _PEP 8 - Style Guide for Python Code:
https://www.python.org/dev/peps/pep-0008 .. _PEP 8 - Style Guide for Python Code: https://www.python.org/dev/peps/pep-0008
Submitting a pull request Submitting a pull request
========================= =========================
@@ -337,7 +336,7 @@ manually updating this script, run the build script, which lives at
.. code-block:: shell .. code-block:: shell
python letsencrypt-auto-source/build.py python letsencrypt-auto-source/build.py
Running ``build.py`` will update the ``letsencrypt-auto-source/letsencrypt-auto`` Running ``build.py`` will update the ``letsencrypt-auto-source/letsencrypt-auto``
script. Note that the ``certbot-auto`` and ``letsencrypt-auto`` scripts in the root script. Note that the ``certbot-auto`` and ``letsencrypt-auto`` scripts in the root
@@ -383,8 +382,8 @@ testing Certbot. This is especially useful for macOS users. To install Docker
Compose, follow the instructions at https://docs.docker.com/compose/install/. Compose, follow the instructions at https://docs.docker.com/compose/install/.
.. note:: Linux users can simply run ``pip install docker-compose`` to get .. note:: Linux users can simply run ``pip install docker-compose`` to get
Docker Compose after installing Docker Engine and activating your shell as Docker Compose after installing Docker Engine and activating your shell as
described in the :ref:`Getting Started <getting_started>` section. described in the :ref:`Getting Started <getting_started>` section.
Now you can develop on your host machine, but run Certbot and test your changes Now you can develop on your host machine, but run Certbot and test your changes
in Docker. When using ``docker-compose`` make sure you are inside your clone of in Docker. When using ``docker-compose`` make sure you are inside your clone of
@@ -448,3 +447,5 @@ for the package.
FreeBSD by default uses ``tcsh``. In order to activate virtualenv (see FreeBSD by default uses ``tcsh``. In order to activate virtualenv (see
above), you will need a compatible shell, e.g. ``pkg install bash && above), you will need a compatible shell, e.g. ``pkg install bash &&
bash``. bash``.

248
docs/how.rst Normal file
View File

@@ -0,0 +1,248 @@
=====================
How it Works
=====================
This new section will cover general info about how the following things work.
This is not a how-to, just a way of connecting the dots so that when people
are doing these tasks later, it all makes sense.
XXX Description of the order of events. That is... you pick your webserver and OS on the interactive installation tool. Behind the scenes, certbot knows how to modify the config file and handle the challenge. You can optionally do hooks. You get authenticated and the cert gets installed. A config file gets created so that automatic renewal can happen. After that, you can manage, modify, or delete certs.
.. include:: challenges.rst
.. _plugins:
Plugins
=======
The Certbot client supports two types of plugins for
obtaining and installing certificates: authenticators and installers.
Authenticators are plugins used with the ``certonly`` command to obtain a certificate.
The authenticator satisfies a challenge to validate that you
control the domain(s) you are requesting a certificate for, obtains a certificate for the specified
domain(s), and places the certificate in the ``/etc/letsencrypt`` directory on your
machine. The authenticator does not install the certificate (it does not edit any of your server's configuration files to serve the
obtained certificate). If you specify multiple domains to authenticate, they will
all be listed in a single certificate. To obtain multiple separate certificates
you will need to run Certbot multiple times.
Installers are Plugins used with the ``install`` command to install a certificate.
These plugins can modify your webserver's configuration to
serve your website over HTTPS using certificates obtained by certbot.
Plugins that do both can be used with the ``certbot run`` command, which is the default
when no command is specified. The ``run`` subcommand can also be used to specify
a combination_ of distinct authenticator and installer plugins.
=========== ==== ==== =============================================================== =============================
Plugin Auth Inst Notes Challenge types (and port)
=========== ==== ==== =============================================================== =============================
apache Y Y | Automates obtaining and installing a certificate with Apache :ref:`TLS-SNI-01 <tls_sni_01_challenge>` (443)
| 2.4 on Debian-based distributions with ``libaugeas0`` 1.0+.
webroot Y N | Obtains a certificate by writing to the webroot directory of :ref:`HTTP-01 <http_01_challenge>` (80)
| an already running webserver.
nginx Y Y | Automates obtaining and installing a certificate with Nginx. :ref:`TLS-SNI-01 <tls_sni_01_challenge>` (443)
| Shipped with Certbot 0.9.0.
standalone Y N | Uses a "standalone" webserver to obtain a certificate. :ref:`HTTP-01 <http_01_challenge>` (80) or
| Requires port 80 or 443 to be available. This is useful on :ref:`TLS-SNI-01 <tls_sni_01_challenge>` (443)
| systems with no webserver, or when direct integration with
| the local webserver is not supported or not desired.
manual Y N | Helps you obtain a certificate by giving you instructions to :ref:`HTTP-01 <http_01_challenge>` (80),
| perform domain validation yourself. Additionally allows you :ref:`DNS-01 <dns_01_challenge>` (53) or
| to specify scripts to automate the validation task in a :ref:`TLS-SNI-01 <tls_sni_01_challenge>` (443)
| customized way.
=========== ==== ==== =============================================================== =============================
A few
plugins support more than one challenge type, in which case you can choose one
with ``--preferred-challenges``.
.. _third-party-plugins:
Third-party plugins
-------------------
There are also a number of third-party plugins for the client, provided by
other developers. Many are beta/experimental, but some are already in
widespread use:
=========== ==== ==== ===============================================================
Plugin Auth Inst Notes
=========== ==== ==== ===============================================================
plesk_ Y Y Integration with the Plesk web hosting tool
haproxy_ Y Y Integration with the HAProxy load balancer
s3front_ Y Y Integration with Amazon CloudFront distribution of S3 buckets
gandi_ Y Y Integration with Gandi's hosting products and API
varnish_ Y N Obtain certificates via a Varnish server
external_ Y N A plugin for convenient scripting (See also ticket 2782_)
icecast_ N Y Deploy certificates to Icecast 2 streaming media servers
pritunl_ N Y Install certificates in pritunl distributed OpenVPN servers
proxmox_ N Y Install certificates in Proxmox Virtualization servers
postfix_ N Y STARTTLS Everywhere is becoming a Certbot Postfix/Exim plugin
heroku_ Y Y Integration with Heroku SSL
=========== ==== ==== ===============================================================
.. _plesk: https://github.com/plesk/letsencrypt-plesk
.. _haproxy: https://github.com/greenhost/certbot-haproxy
.. _s3front: https://github.com/dlapiduz/letsencrypt-s3front
.. _gandi: https://github.com/Gandi/letsencrypt-gandi
.. _icecast: https://github.com/e00E/lets-encrypt-icecast
.. _varnish: http://git.sesse.net/?p=letsencrypt-varnish-plugin
.. _2782: https://github.com/certbot/certbot/issues/2782
.. _pritunl: https://github.com/kharkevich/letsencrypt-pritunl
.. _proxmox: https://github.com/kharkevich/letsencrypt-proxmox
.. _external: https://github.com/marcan/letsencrypt-external
.. _postfix: https://github.com/EFForg/starttls-everywhere
.. _heroku: https://github.com/gboudreau/certbot-heroku
If you're interested, you can also :ref:`write your own plugin <dev-plugin>`.
.. _lock-files:
Lock Files
==========
When processing a validation Certbot writes a number of lock files on your system
to prevent multiple instances from overwriting each other's changes. This means
that be default two instances of Certbot will not be able to run in parallel.
Since the directories used by Certbot are configurable, Certbot
will write a lock file for all of the directories it uses. This include Certbot's
``--work-dir``, ``--logs-dir``, and ``--config-dir``. By default these are
``/var/lib/letsencrypt``, ``/var/logs/letsencrypt``, and ``/etc/letsencrypt``
respectively. Additionally if you are using Certbot with Apache or nginx it will
lock the configuration folder for that program, which are typically also in the
``/etc`` directory.
Note that these lock files will only prevent other instances of Certbot from
using those directories, not other processes. If you'd like to run multiple
instances of Certbot simultaneously you should specify different directories
as the ``--work-dir``, ``--logs-dir``, and ``--config-dir`` for each instance
of Certbot that you would like to run.
.. _hooks:
Pre and Post Validation Hooks
=============================
Certbot allows for the specification of pre and post validation hooks when run
in manual mode. The flags to specify these scripts are ``--manual-auth-hook``
and ``--manual-cleanup-hook`` respectively and can be used as follows::
certbot certonly --manual --manual-auth-hook /path/to/http/authenticator.sh --manual-cleanup-hook /path/to/http/cleanup.sh -d secure.example.com
This will run the ``authenticator.sh`` script, attempt the validation, and then run
the ``cleanup.sh`` script. Additionally certbot will pass relevant environment
variables to these scripts:
- ``CERTBOT_DOMAIN``: The domain being authenticated
- ``CERTBOT_VALIDATION``: The validation string (HTTP-01 and DNS-01 only)
- ``CERTBOT_TOKEN``: Resource name part of the HTTP-01 challenge (HTTP-01 only)
- ``CERTBOT_CERT_PATH``: The challenge SSL certificate (TLS-SNI-01 only)
- ``CERTBOT_KEY_PATH``: The private key associated with the aforementioned SSL certificate (TLS-SNI-01 only)
- ``CERTBOT_SNI_DOMAIN``: The SNI name for which the ACME server expects to be presented the self-signed certificate located at ``$CERTBOT_CERT_PATH`` (TLS-SNI-01 only)
Additionally for cleanup:
- ``CERTBOT_AUTH_OUTPUT``: Whatever the auth script wrote to stdout
Example usage for HTTP-01::
certbot certonly --manual --preferred-challenges=http --manual-auth-hook /path/to/http/authenticator.sh --manual-cleanup-hook /path/to/http/cleanup.sh -d secure.example.com
/path/to/http/authenticator.sh
.. code-block:: none
#!/bin/bash
echo $CERTBOT_VALIDATION > /var/www/htdocs/.well-known/acme-challenge/$CERTBOT_TOKEN
/path/to/http/cleanup.sh
.. code-block:: none
#!/bin/bash
rm -f /var/www/htdocs/.well-known/acme-challenge/$CERTBOT_TOKEN
Example usage for DNS-01 (Cloudflare API v4) (for example purposes only, do not use as-is)::
certbot certonly --manual --preferred-challenges=dns --manual-auth-hook /path/to/dns/authenticator.sh --manual-cleanup-hook /path/to/dns/cleanup.sh -d secure.example.com
/path/to/dns/authenticator.sh
.. code-block:: none
#!/bin/bash
# Get your API key from https://www.cloudflare.com/a/account/my-account
API_KEY="your-api-key"
EMAIL="your.email@example.com"
# Strip only the top domain to get the zone id
DOMAIN=$(expr match "$CERTBOT_DOMAIN" '.*\.\(.*\..*\)')
# Get the Cloudflare zone id
ZONE_EXTRA_PARAMS="status=active&page=1&per_page=20&order=status&direction=desc&match=all"
ZONE_ID=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones?name=$DOMAIN&$ZONE_EXTRA_PARAMS" \
-H "X-Auth-Email: $EMAIL" \
-H "X-Auth-Key: $API_KEY" \
-H "Content-Type: application/json" | python -c "import sys,json;print(json.load(sys.stdin)['result'][0]['id'])")
# Create TXT record
CREATE_DOMAIN="_acme-challenge.$CERTBOT_DOMAIN"
RECORD_ID=$(curl -s -X POST "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records" \
-H "X-Auth-Email: $EMAIL" \
-H "X-Auth-Key: $API_KEY" \
-H "Content-Type: application/json" \
--data '{"type":"TXT","name":"'"$CREATE_DOMAIN"'","content":"'"$CERTBOT_VALIDATION"'","ttl":120}' \
| python -c "import sys,json;print(json.load(sys.stdin)['result']['id'])")
# Save info for cleanup
if [ ! -d /tmp/CERTBOT_$CERTBOT_DOMAIN ];then
mkdir -m 0700 /tmp/CERTBOT_$CERTBOT_DOMAIN
fi
echo $ZONE_ID > /tmp/CERTBOT_$CERTBOT_DOMAIN/ZONE_ID
echo $RECORD_ID > /tmp/CERTBOT_$CERTBOT_DOMAIN/RECORD_ID
# Sleep to make sure the change has time to propagate over to DNS
sleep 25
/path/to/dns/cleanup.sh
.. code-block:: none
#!/bin/bash
# Get your API key from https://www.cloudflare.com/a/account/my-account
API_KEY="your-api-key"
EMAIL="your.email@example.com"
if [ -f /tmp/CERTBOT_$CERTBOT_DOMAIN/ZONE_ID ]; then
ZONE_ID=$(cat /tmp/CERTBOT_$CERTBOT_DOMAIN/ZONE_ID)
rm -f /tmp/CERTBOT_$CERTBOT_DOMAIN/ZONE_ID
fi
if [ -f /tmp/CERTBOT_$CERTBOT_DOMAIN/RECORD_ID ]; then
RECORD_ID=$(cat /tmp/CERTBOT_$CERTBOT_DOMAIN/RECORD_ID)
rm -f /tmp/CERTBOT_$CERTBOT_DOMAIN/RECORD_ID
fi
# Remove the challenge TXT record from the zone
if [ -n "${ZONE_ID}" ]; then
if [ -n "${RECORD_ID}" ]; then
curl -s -X DELETE "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records/$RECORD_ID" \
-H "X-Auth-Email: $EMAIL" \
-H "X-Auth-Key: $API_KEY" \
-H "Content-Type: application/json"
fi
fi

View File

@@ -4,13 +4,18 @@ Welcome to the Certbot documentation!
.. toctree:: .. toctree::
:maxdepth: 2 :maxdepth: 2
start
intro intro
what what
how
challenges
install install
using using
contributing contributing
packaging packaging
resources resources
reference
configure
.. toctree:: .. toctree::
:maxdepth: 1 :maxdepth: 1
@@ -24,3 +29,4 @@ Indices and tables
* :ref:`genindex` * :ref:`genindex`
* :ref:`modindex` * :ref:`modindex`
* :ref:`search` * :ref:`search`

View File

@@ -1,22 +1,16 @@
===================== =====================
Get Certbot Manual Installation
===================== =====================
.. contents:: Table of Contents .. contents:: Table of Contents
:local: :local:
.. Note:: The easiest way to install Certbot is by visiting `certbot.eff.org`_,
where you can find the correct installation instructions for many web server
and OS combinations.
About Certbot
=============
Certbot is packaged for many common operating systems and web servers. Check whether .. _certbot.eff.org: https://certbot.eff.org/
``certbot`` (or ``letsencrypt``) is packaged for your web server's OS by visiting
certbot.eff.org_, where you will also find the correct installation instructions for
your system.
.. Note:: Unless you have very specific requirements, we kindly suggest that you use the Certbot packages provided by your package manager (see certbot.eff.org_). If such packages are not available, we recommend using ``certbot-auto``, which automates the process of installing Certbot on your system.
.. _certbot.eff.org: https://certbot.eff.org
System Requirements System Requirements
@@ -77,23 +71,6 @@ For full command line help, you can type::
./certbot-auto --help all ./certbot-auto --help all
Problems with Python virtual environment
----------------------------------------
On a low memory system such as VPS with less than 512MB of RAM, the required dependencies of Certbot will fail to build.
This can be identified if the pip outputs contains something like ``internal compiler error: Killed (program cc1)``.
You can workaround this restriction by creating a temporary swapfile::
user@webserver:~$ sudo fallocate -l 1G /tmp/swapfile
user@webserver:~$ sudo chmod 600 /tmp/swapfile
user@webserver:~$ sudo mkswap /tmp/swapfile
user@webserver:~$ sudo swapon /tmp/swapfile
Disable and remove the swapfile once the virtual environment is constructed::
user@webserver:~$ sudo swapoff /tmp/swapfile
user@webserver:~$ sudo rm /tmp/swapfile
Running with Docker Running with Docker
------------------- -------------------
@@ -241,3 +218,207 @@ whole process is described in the :doc:`contributing`.
./venv/bin/...``. These modes of operation might corrupt your operating ./venv/bin/...``. These modes of operation might corrupt your operating
system and are **not supported** by the Certbot team! system and are **not supported** by the Certbot team!
Problems with Python virtual environment
----------------------------------------
On a low memory system such as VPS with less than 512MB of RAM, the required dependencies of Certbot will fail to build.
This can be identified if the pip outputs contains something like ``internal compiler error: Killed (program cc1)``.
You can workaround this restriction by creating a temporary swapfile::
user@webserver:~$ sudo fallocate -l 1G /tmp/swapfile
user@webserver:~$ sudo chmod 600 /tmp/swapfile
user@webserver:~$ sudo mkswap /tmp/swapfile
user@webserver:~$ sudo swapon /tmp/swapfile
Disable and remove the swapfile once the virtual environment is constructed::
user@webserver:~$ sudo swapoff /tmp/swapfile
user@webserver:~$ sudo rm /tmp/swapfile
.. _getting_certs:
Getting Certificates
====================
XXX This section needs to have command-line examples for each plug-in.
.. _apache:
Apache
------
The Apache plugin currently requires an OS with augeas version 1.0; currently `it
supports
<https://github.com/certbot/certbot/blob/master/certbot-apache/certbot_apache/constants.py>`_
modern OSes based on Debian, Fedora, SUSE, Gentoo and Darwin.
This automates both obtaining *and* installing certificates on an Apache
webserver. To specify this plugin on the command line, simply include
``--apache``.
* Apache plugin: (TLS-SNI-01) Tries to edit your Apache configuration files to temporarily serve
a Certbot-generated certificate for a specified name. Use the Apache plugin when you're running
Certbot on a web server with Apache listening on port 443.
.. _manual:
Manual
------
If you'd like to obtain a certificate running ``certbot`` on a machine
other than your target webserver or perform the steps for domain
validation yourself, you can use the manual plugin. While hidden from
the UI, you can use the plugin to obtain a certificate by specifying
``certonly`` and ``--manual`` on the command line. This requires you
to copy and paste commands into another terminal session, which may
be on a different computer.
The manual plugin can use either the ``http``, ``dns`` or the
``tls-sni`` challenge. You can use the ``--preferred-challenges`` option
to choose the challenge of your preference.
The ``http`` challenge will ask you to place a file with a specific name and
specific content in the ``/.well-known/acme-challenge/`` directory directly
in the top-level directory (“web root”) containing the files served by your
webserver. In essence it's the same as the webroot_ plugin, but not automated.
When using the ``dns`` challenge, ``certbot`` will ask you to place a TXT DNS
record with specific contents under the domain name consisting of the hostname
for which you want a certificate issued, prepended by ``_acme-challenge``.
For example, for the domain ``example.com``, a zone file entry would look like::
_acme-challenge.example.com. 300 IN TXT "gfj9Xq...Rg85nM"
When using the ``tls-sni`` challenge, ``certbot`` will prepare a self-signed
SSL certificate for you with the challenge validation appropriately
encoded into a subjectAlternatNames entry. You will need to configure
your SSL server to present this challenge SSL certificate to the ACME
server using SNI.
Additionally you can specify scripts to prepare for validation and
perform the authentication procedure and/or clean up after it by using
the ``--manual-auth-hook`` and ``--manual-cleanup-hook`` flags. This is
described in more depth in the hooks section.
* Manual plugin: (DNS-01 or HTTP-01) Either tells you what changes to make to your configuration or updates
your DNS records using an external script (for DNS-01) or your webroot (for HTTP-01). Use the Manual
plugin if you have the technical knowledge to make configuration changes yourself when asked to do so.
.. _nginx:
Nginx
-----
The Nginx plugin has been distributed with Certbot since version 0.9.0 and should
work for most configurations. We recommend backing up Nginx
configurations before using it (though you can also revert changes to
configurations with ``certbot --nginx rollback``). You can use it by providing
the ``--nginx`` flag on the commandline::
certbot nginx
* NGINX plugin: (TLS-SNI-01) Tries to edit your NGINX configuration files to temporarily serve a
Certbot-generated certificate for a specified name. Use the NGINX plugin when you're running
Certbot on a web server with NGINX listening on port 443.
.. _standalone:
Standalone
----------
Use standalone mode to obtain a certificate if you don't want to use (or don't currently have)
existing server software. The standalone plugin does not rely on any other server
software running on the machine where you obtain the certificate.
To obtain a certificate using a "standalone" webserver, you can use the
standalone plugin by including ``certonly`` and ``--standalone``
on the command line. This plugin needs to bind to port 80 or 443 in
order to perform domain validation, so you may need to stop your
existing webserver. To control which port the plugin uses, include
one of the options shown below on the command line.
* ``--preferred-challenges http`` to use port 80
* ``--preferred-challenges tls-sni`` to use port 443
It must still be possible for your machine to accept inbound connections from
the Internet on the specified port using each requested domain name.
.. note:: The ``--standalone-supported-challenges`` option has been
deprecated since ``certbot`` version 0.9.0.
* Standalone plugin: (TLS-SNI-01 or HTTP-01) Tries to run a temporary web server listening on either HTTP on
port 80 (for HTTP-01) or HTTPS on port 443 (for TLS-SNI-01). Use the Standalone plugin if no existing program
is listening to these ports. Choose TLS-SNI-01 or HTTP-01 using the `--preferred-challenges` option.
.. _webroot:
Webroot
-------
If you're running a local webserver for which you have the ability
to modify the content being served, and you'd prefer not to stop the
webserver during the certificate issuance process, you can use the webroot
plugin to obtain a certificate by including ``certonly`` and ``--webroot`` on
the command line. In addition, you'll need to specify ``--webroot-path``
or ``-w`` with the top-level directory ("web root") containing the files
served by your webserver. For example, ``--webroot-path /var/www/html``
or ``--webroot-path /usr/share/nginx/html`` are two common webroot paths.
If you're getting a certificate for many domains at once, the plugin
needs to know where each domain's files are served from, which could
potentially be a separate directory for each domain. When requesting a
certificate for multiple domains, each domain will use the most recently
specified ``--webroot-path``. So, for instance::
certbot certonly --webroot -w /var/www/example/ -d www.example.com -d example.com -w /var/www/other -d other.example.net -d another.other.example.net
would obtain a single certificate for all of those names, using the
``/var/www/example`` webroot directory for the first two, and ``/var/www/other`` for the second two.
The webroot plugin works by creating a temporary file for each of your requested
domains in ``${webroot-path}/.well-known/acme-challenge``. Then the Let's Encrypt
validation server makes HTTP requests to validate that the DNS for each
requested domain resolves to the server running certbot. An example request
made to your web server would look like::
66.133.109.36 - - [05/Jan/2016:20:11:24 -0500] "GET /.well-known/acme-challenge/HGr8U1IeTW4kY_Z6UIyaakzOkyQgPr_7ArlLgtZE8SX HTTP/1.1" 200 87 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)"
Note that to use the webroot plugin, your server must be configured to serve
files from hidden directories. If ``/.well-known`` is treated specially by
your webserver configuration, you might need to modify the configuration
to ensure that files inside ``/.well-known/acme-challenge`` are served by
the webserver.
* Webroot plugin: (HTTP-01) Tries to place a file where it can be served over HTTP on port 80 by a
web server running on your system. Use the Webroot plugin when you're running Certbot on
a web server with any server application listening on port 80 serving files from a folder on disk in response.
.. _combination:
Combining plugins
-----------------
Sometimes you may want to specify a combination of distinct authenticator and
installer plugins. To do so, specify the authenticator plugin with
``--authenticator`` or ``-a`` and the installer plugin with ``--installer`` or
``-i``.
For instance, you may want to create a certificate using the webroot_ plugin
for authentication and the apache_ plugin for installation, perhaps because you
use a proxy or CDN for SSL and only want to secure the connection between them
and your origin server, which cannot use the tls_sni_01_challege_ due to the
intermediate proxy.
::
certbot run -a webroot -i apache -w /var/www/html -d example.com

View File

@@ -1,5 +1,5 @@
===================== =====================
Introduction Overview
===================== =====================
.. note:: .. note::
@@ -8,3 +8,9 @@ Introduction
.. include:: ../README.rst .. include:: ../README.rst
:start-after: tag:intro-begin :start-after: tag:intro-begin
:end-before: tag:intro-end :end-before: tag:intro-end
.. include:: what.rst
.. include:: how.rst

35
docs/reference.rst Normal file
View File

@@ -0,0 +1,35 @@
=====================
Reference
=====================
.. include:: configure.rst
Certbot Logs
============
.. _log-rotation:
Log Rotation
------------
By default certbot stores status logs in ``/var/log/letsencrypt``. By default
certbot will begin rotating logs once there are 1000 logs in the log directory.
Meaning that once 1000 files are in ``/var/log/letsencrypt`` Certbot will delete
the oldest one to make room for new logs. The number of subsequent logs can be
changed by passing the desired number to the command line flag
``--max-log-backups``.
.. _command-line:
Certbot Command-line Reference
==============================
Certbot supports a lot of command line options. Here's the full list, from
``certbot --help all``:
.. literalinclude:: cli-help.txt

44
docs/start.rst Normal file
View File

@@ -0,0 +1,44 @@
=====================
Quick Start
=====================
Start Here
============
Use the the `interactive installation guide <https://certbot.eff.org>`_.
What youll find there:
* Installation instructions
* Instructions for getting a certificate
* Automated renewal instructions
You only need to go to the Manual Installation section if you have special needs:
an unusual server or configuration, if you need to modify an existing certificate,
if you need to run special scripts automatically before or after installation.
Getting Help
============
If you're having problems, we recommend posting on the Let's Encrypt
`Community Forum <https://community.letsencrypt.org>`_.
You can also chat with us on IRC: `(#letsencrypt @
freenode) <https://webchat.freenode.net?channels=%23letsencrypt>`_
If you find a bug in the software, please do report it in our `issue
tracker <https://github.com/certbot/certbot/issues>`_. Remember to
give us as much information as possible:
- copy and paste exact command line used and the output (though mind
that the latter might include some personally identifiable
information, including your email and domains)
- copy and paste logs from ``/var/log/letsencrypt`` (though mind they
also might contain personally identifiable information)
- copy and paste ``certbot --version`` output
- your operating system, including specific version
- specify which installation method you've chosen

View File

@@ -1,269 +1,19 @@
========== Working with Certificates
User Guide =========================
==========
.. contents:: Table of Contents .. contents:: Table of Contents
:local: :local:
Certbot Commands Before You Begin
================ ================
Certbot uses a number of different commands (also referred
to as "subcommands") to request specific actions such as
obtaining, renewing, or revoking certificates. The most important
and commonly-used commands will be discussed throughout this
document; an exhaustive list also appears near the end of the document.
The ``certbot`` script on your web server might be named ``letsencrypt`` if your system uses an older package, or ``certbot-auto`` if you used an alternate installation method. Throughout the docs, whenever you see ``certbot``, swap in the correct name as needed. The ``certbot`` script on your web server might be named ``letsencrypt`` if your system uses an older package, or ``certbot-auto`` if you used an alternate installation method. Throughout the docs, whenever you see ``certbot``, swap in the correct name as needed.
.. _plugins:
Getting certificates (and choosing plugins) * Figure out which plugin to use
=========================================== * Use the plugin to get the certificate
The Certbot client supports two types of plugins for
obtaining and installing certificates: authenticators and installers.
Authenticators are plugins used with the ``certonly`` command to obtain a certificate.
The authenticator validates that you
control the domain(s) you are requesting a certificate for, obtains a certificate for the specified
domain(s), and places the certificate in the ``/etc/letsencrypt`` directory on your
machine. The authenticator does not install the certificate (it does not edit any of your server's configuration files to serve the
obtained certificate). If you specify multiple domains to authenticate, they will
all be listed in a single certificate. To obtain multiple separate certificates
you will need to run Certbot multiple times.
Installers are Plugins used with the ``install`` command to install a certificate.
These plugins can modify your webserver's configuration to
serve your website over HTTPS using certificates obtained by certbot.
Plugins that do both can be used with the ``certbot run`` command, which is the default
when no command is specified. The ``run`` subcommand can also be used to specify
a combination_ of distinct authenticator and installer plugins.
=========== ==== ==== =============================================================== =============================
Plugin Auth Inst Notes Challenge types (and port)
=========== ==== ==== =============================================================== =============================
apache_ Y Y | Automates obtaining and installing a certificate with Apache tls-sni-01_ (443)
| 2.4 on Debian-based distributions with ``libaugeas0`` 1.0+.
webroot_ Y N | Obtains a certificate by writing to the webroot directory of http-01_ (80)
| an already running webserver.
nginx_ Y Y | Automates obtaining and installing a certificate with Nginx. tls-sni-01_ (443)
| Shipped with Certbot 0.9.0.
standalone_ Y N | Uses a "standalone" webserver to obtain a certificate. http-01_ (80) or
| Requires port 80 or 443 to be available. This is useful on tls-sni-01_ (443)
| systems with no webserver, or when direct integration with
| the local webserver is not supported or not desired.
manual_ Y N | Helps you obtain a certificate by giving you instructions to http-01_ (80),
| perform domain validation yourself. Additionally allows you dns-01_ (53) or
| to specify scripts to automate the validation task in a tls-sni-01_ (443)
| customized way.
=========== ==== ==== =============================================================== =============================
Under the hood, plugins use one of several ACME protocol challenges_ to
prove you control a domain. The options are http-01_ (which uses port 80),
tls-sni-01_ (port 443) and dns-01_ (requiring configuration of a DNS server on
port 53, though that's often not the same machine as your webserver). A few
plugins support more than one challenge type, in which case you can choose one
with ``--preferred-challenges``.
There are also many third-party-plugins_ available. Below we describe in more detail
the circumstances in which each plugin can be used, and how to use it.
.. _challenges: https://tools.ietf.org/html/draft-ietf-acme-acme-03#section-7
.. _tls-sni-01: https://tools.ietf.org/html/draft-ietf-acme-acme-03#section-7.3
.. _http-01: https://tools.ietf.org/html/draft-ietf-acme-acme-03#section-7.2
.. _dns-01: https://tools.ietf.org/html/draft-ietf-acme-acme-03#section-7.4
Apache
------
The Apache plugin currently requires an OS with augeas version 1.0; currently `it
supports
<https://github.com/certbot/certbot/blob/master/certbot-apache/certbot_apache/constants.py>`_
modern OSes based on Debian, Fedora, SUSE, Gentoo and Darwin.
This automates both obtaining *and* installing certificates on an Apache
webserver. To specify this plugin on the command line, simply include
``--apache``.
Webroot
-------
If you're running a local webserver for which you have the ability
to modify the content being served, and you'd prefer not to stop the
webserver during the certificate issuance process, you can use the webroot
plugin to obtain a certificate by including ``certonly`` and ``--webroot`` on
the command line. In addition, you'll need to specify ``--webroot-path``
or ``-w`` with the top-level directory ("web root") containing the files
served by your webserver. For example, ``--webroot-path /var/www/html``
or ``--webroot-path /usr/share/nginx/html`` are two common webroot paths.
If you're getting a certificate for many domains at once, the plugin
needs to know where each domain's files are served from, which could
potentially be a separate directory for each domain. When requesting a
certificate for multiple domains, each domain will use the most recently
specified ``--webroot-path``. So, for instance,
::
certbot certonly --webroot -w /var/www/example/ -d www.example.com -d example.com -w /var/www/other -d other.example.net -d another.other.example.net
would obtain a single certificate for all of those names, using the
``/var/www/example`` webroot directory for the first two, and
``/var/www/other`` for the second two.
The webroot plugin works by creating a temporary file for each of your requested
domains in ``${webroot-path}/.well-known/acme-challenge``. Then the Let's Encrypt
validation server makes HTTP requests to validate that the DNS for each
requested domain resolves to the server running certbot. An example request
made to your web server would look like:
::
66.133.109.36 - - [05/Jan/2016:20:11:24 -0500] "GET /.well-known/acme-challenge/HGr8U1IeTW4kY_Z6UIyaakzOkyQgPr_7ArlLgtZE8SX HTTP/1.1" 200 87 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)"
Note that to use the webroot plugin, your server must be configured to serve
files from hidden directories. If ``/.well-known`` is treated specially by
your webserver configuration, you might need to modify the configuration
to ensure that files inside ``/.well-known/acme-challenge`` are served by
the webserver.
Nginx
-----
The Nginx plugin has been distributed with Certbot since version 0.9.0 and should
work for most configurations. We recommend backing up Nginx
configurations before using it (though you can also revert changes to
configurations with ``certbot --nginx rollback``). You can use it by providing
the ``--nginx`` flag on the commandline.
::
certbot --nginx
Standalone
----------
Use standalone mode to obtain a certificate if you don't want to use (or don't currently have)
existing server software. The standalone plugin does not rely on any other server
software running on the machine where you obtain the certificate.
To obtain a certificate using a "standalone" webserver, you can use the
standalone plugin by including ``certonly`` and ``--standalone``
on the command line. This plugin needs to bind to port 80 or 443 in
order to perform domain validation, so you may need to stop your
existing webserver. To control which port the plugin uses, include
one of the options shown below on the command line.
* ``--preferred-challenges http`` to use port 80
* ``--preferred-challenges tls-sni`` to use port 443
It must still be possible for your machine to accept inbound connections from
the Internet on the specified port using each requested domain name.
.. note:: The ``--standalone-supported-challenges`` option has been
deprecated since ``certbot`` version 0.9.0.
Manual
------
If you'd like to obtain a certificate running ``certbot`` on a machine
other than your target webserver or perform the steps for domain
validation yourself, you can use the manual plugin. While hidden from
the UI, you can use the plugin to obtain a certificate by specifying
``certonly`` and ``--manual`` on the command line. This requires you
to copy and paste commands into another terminal session, which may
be on a different computer.
The manual plugin can use either the ``http``, ``dns`` or the
``tls-sni`` challenge. You can use the ``--preferred-challenges`` option
to choose the challenge of your preference.
The ``http`` challenge will ask you to place a file with a specific name and
specific content in the ``/.well-known/acme-challenge/`` directory directly
in the top-level directory (“web root”) containing the files served by your
webserver. In essence it's the same as the webroot_ plugin, but not automated.
When using the ``dns`` challenge, ``certbot`` will ask you to place a TXT DNS
record with specific contents under the domain name consisting of the hostname
for which you want a certificate issued, prepended by ``_acme-challenge``.
For example, for the domain ``example.com``, a zone file entry would look like:
::
_acme-challenge.example.com. 300 IN TXT "gfj9Xq...Rg85nM"
When using the ``tls-sni`` challenge, ``certbot`` will prepare a self-signed
SSL certificate for you with the challenge validation appropriately
encoded into a subjectAlternatNames entry. You will need to configure
your SSL server to present this challenge SSL certificate to the ACME
server using SNI.
Additionally you can specify scripts to prepare for validation and
perform the authentication procedure and/or clean up after it by using
the ``--manual-auth-hook`` and ``--manual-cleanup-hook`` flags. This is
described in more depth in the hooks_ section.
.. _combination:
Combining plugins
-----------------
Sometimes you may want to specify a combination of distinct authenticator and
installer plugins. To do so, specify the authenticator plugin with
``--authenticator`` or ``-a`` and the installer plugin with ``--installer`` or
``-i``.
For instance, you may want to create a certificate using the webroot_ plugin
for authentication and the apache_ plugin for installation, perhaps because you
use a proxy or CDN for SSL and only want to secure the connection between them
and your origin server, which cannot use the tls-sni-01_ challenge due to the
intermediate proxy.
::
certbot run -a webroot -i apache -w /var/www/html -d example.com
.. _third-party-plugins:
Third-party plugins
-------------------
There are also a number of third-party plugins for the client, provided by
other developers. Many are beta/experimental, but some are already in
widespread use:
=========== ==== ==== ===============================================================
Plugin Auth Inst Notes
=========== ==== ==== ===============================================================
plesk_ Y Y Integration with the Plesk web hosting tool
haproxy_ Y Y Integration with the HAProxy load balancer
s3front_ Y Y Integration with Amazon CloudFront distribution of S3 buckets
gandi_ Y Y Integration with Gandi's hosting products and API
varnish_ Y N Obtain certificates via a Varnish server
external_ Y N A plugin for convenient scripting (See also ticket 2782_)
icecast_ N Y Deploy certificates to Icecast 2 streaming media servers
pritunl_ N Y Install certificates in pritunl distributed OpenVPN servers
proxmox_ N Y Install certificates in Proxmox Virtualization servers
postfix_ N Y STARTTLS Everywhere is becoming a Certbot Postfix/Exim plugin
heroku_ Y Y Integration with Heroku SSL
=========== ==== ==== ===============================================================
.. _plesk: https://github.com/plesk/letsencrypt-plesk
.. _haproxy: https://github.com/greenhost/certbot-haproxy
.. _s3front: https://github.com/dlapiduz/letsencrypt-s3front
.. _gandi: https://github.com/Gandi/letsencrypt-gandi
.. _icecast: https://github.com/e00E/lets-encrypt-icecast
.. _varnish: http://git.sesse.net/?p=letsencrypt-varnish-plugin
.. _2782: https://github.com/certbot/certbot/issues/2782
.. _pritunl: https://github.com/kharkevich/letsencrypt-pritunl
.. _proxmox: https://github.com/kharkevich/letsencrypt-proxmox
.. _external: https://github.com/marcan/letsencrypt-external
.. _postfix: https://github.com/EFForg/starttls-everywhere
.. _heroku: https://github.com/gboudreau/certbot-heroku
If you're interested, you can also :ref:`write your own plugin <dev-plugin>`.
.. _managing-certs: .. _managing-certs:
@@ -359,7 +109,7 @@ abuse of the ACME protocol, as described
.. _changing: .. _changing:
Changing a Certificate's Domains Changing a Certificate's Domains
================================ --------------------------------
The ``--cert-name`` flag can also be used to modify the domains a certificate contains, The ``--cert-name`` flag can also be used to modify the domains a certificate contains,
by specifying new domains using the ``-d`` or ``--domains`` flag. If certificate ``example.com`` by specifying new domains using the ``-d`` or ``--domains`` flag. If certificate ``example.com``
@@ -562,58 +312,11 @@ commands into your individual environment.
you will need to use the ``--post-hook`` since the exit status will be 0 both on successful renewal you will need to use the ``--post-hook`` since the exit status will be 0 both on successful renewal
and when renewal is not necessary. and when renewal is not necessary.
.. _renewal-config-file:
Modifying the Renewal Configuration File
----------------------------------------
When a certificate is issued, by default Certbot creates a renewal configuration file that
tracks the options that were selected when Certbot was run. This allows Certbot
to use those same options again when it comes time for renewal. These renewal
configuration files are located at ``/etc/letsencrypt/renewal/CERTNAME``.
For advanced certificate management tasks, it is possible to manually modify the certificate's
renewal configuration file, but this is discouraged since it can easily break Certbot's
ability to renew your certificates. If you choose to modify the renewal configuration file
we advise you to test its validity with the ``certbot renew --dry-run`` command.
.. warning:: Modifying any files in ``/etc/letsencrypt`` can damage them so Certbot can no longer properly manage its certificates, and we do not recommend doing so.
For most tasks, it is safest to limit yourself to pointing symlinks at the files there, or using
``--deploy-hook`` to copy / make new files based upon those files, if your operational situation requires it
(for instance, combining certificates and keys in different way, or having copies of things with different
specific permissions that are demanded by other programs).
If the contents of ``/etc/letsencrypt/archive/CERTNAME`` are moved to a new folder, first specify
the new folder's name in the renewal configuration file, then run ``certbot update_symlinks`` to
point the symlinks in ``/etc/letsencrypt/live/CERTNAME`` to the new folder.
If you would like the live certificate files whose symlink location Certbot updates on each run to
reside in a different location, first move them to that location, then specify the full path of
each of the four files in the renewal configuration file. Since the symlinks are relative links,
you must follow this with an invocation of ``certbot update_symlinks``.
For example, say that a certificate's renewal configuration file previously contained the following
directives::
archive_dir = /etc/letsencrypt/archive/example.com
cert = /etc/letsencrypt/live/example.com/cert.pem
privkey = /etc/letsencrypt/live/example.com/privkey.pem
chain = /etc/letsencrypt/live/example.com/chain.pem
fullchain = /etc/letsencrypt/live/example.com/fullchain.pem
The following commands could be used to specify where these files are located::
mv /etc/letsencrypt/archive/example.com /home/user/me/certbot/example_archive
sed -i 's,/etc/letsencrypt/archive/example.com,/home/user/me/certbot/example_archive,' /etc/letsencrypt/renewal/example.com.conf
mv /etc/letsencrypt/live/example.com/*.pem /home/user/me/certbot/
sed -i 's,/etc/letsencrypt/live/example.com,/home/user/me/certbot,g' /etc/letsencrypt/renewal/example.com.conf
certbot update_symlinks
.. _where-certs: .. _where-certs:
Where are my certificates? Where are my certificates?
========================== ==========================
@@ -677,224 +380,4 @@ The following files are available:
could convert using ``openssl``. You can automate that with could convert using ``openssl``. You can automate that with
``--deploy-hook`` if you're using automatic renewal_. ``--deploy-hook`` if you're using automatic renewal_.
.. _hooks:
Pre and Post Validation Hooks
=============================
Certbot allows for the specification of pre and post validation hooks when run
in manual mode. The flags to specify these scripts are ``--manual-auth-hook``
and ``--manual-cleanup-hook`` respectively and can be used as follows:
::
certbot certonly --manual --manual-auth-hook /path/to/http/authenticator.sh --manual-cleanup-hook /path/to/http/cleanup.sh -d secure.example.com
This will run the ``authenticator.sh`` script, attempt the validation, and then run
the ``cleanup.sh`` script. Additionally certbot will pass relevant environment
variables to these scripts:
- ``CERTBOT_DOMAIN``: The domain being authenticated
- ``CERTBOT_VALIDATION``: The validation string (HTTP-01 and DNS-01 only)
- ``CERTBOT_TOKEN``: Resource name part of the HTTP-01 challenge (HTTP-01 only)
- ``CERTBOT_CERT_PATH``: The challenge SSL certificate (TLS-SNI-01 only)
- ``CERTBOT_KEY_PATH``: The private key associated with the aforementioned SSL certificate (TLS-SNI-01 only)
- ``CERTBOT_SNI_DOMAIN``: The SNI name for which the ACME server expects to be presented the self-signed certificate located at ``$CERTBOT_CERT_PATH`` (TLS-SNI-01 only)
Additionally for cleanup:
- ``CERTBOT_AUTH_OUTPUT``: Whatever the auth script wrote to stdout
Example usage for HTTP-01:
::
certbot certonly --manual --preferred-challenges=http --manual-auth-hook /path/to/http/authenticator.sh --manual-cleanup-hook /path/to/http/cleanup.sh -d secure.example.com
/path/to/http/authenticator.sh
.. code-block:: none
#!/bin/bash
echo $CERTBOT_VALIDATION > /var/www/htdocs/.well-known/acme-challenge/$CERTBOT_TOKEN
/path/to/http/cleanup.sh
.. code-block:: none
#!/bin/bash
rm -f /var/www/htdocs/.well-known/acme-challenge/$CERTBOT_TOKEN
Example usage for DNS-01 (Cloudflare API v4) (for example purposes only, do not use as-is)
::
certbot certonly --manual --preferred-challenges=dns --manual-auth-hook /path/to/dns/authenticator.sh --manual-cleanup-hook /path/to/dns/cleanup.sh -d secure.example.com
/path/to/dns/authenticator.sh
.. code-block:: none
#!/bin/bash
# Get your API key from https://www.cloudflare.com/a/account/my-account
API_KEY="your-api-key"
EMAIL="your.email@example.com"
# Strip only the top domain to get the zone id
DOMAIN=$(expr match "$CERTBOT_DOMAIN" '.*\.\(.*\..*\)')
# Get the Cloudflare zone id
ZONE_EXTRA_PARAMS="status=active&page=1&per_page=20&order=status&direction=desc&match=all"
ZONE_ID=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones?name=$DOMAIN&$ZONE_EXTRA_PARAMS" \
-H "X-Auth-Email: $EMAIL" \
-H "X-Auth-Key: $API_KEY" \
-H "Content-Type: application/json" | python -c "import sys,json;print(json.load(sys.stdin)['result'][0]['id'])")
# Create TXT record
CREATE_DOMAIN="_acme-challenge.$CERTBOT_DOMAIN"
RECORD_ID=$(curl -s -X POST "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records" \
-H "X-Auth-Email: $EMAIL" \
-H "X-Auth-Key: $API_KEY" \
-H "Content-Type: application/json" \
--data '{"type":"TXT","name":"'"$CREATE_DOMAIN"'","content":"'"$CERTBOT_VALIDATION"'","ttl":120}' \
| python -c "import sys,json;print(json.load(sys.stdin)['result']['id'])")
# Save info for cleanup
if [ ! -d /tmp/CERTBOT_$CERTBOT_DOMAIN ];then
mkdir -m 0700 /tmp/CERTBOT_$CERTBOT_DOMAIN
fi
echo $ZONE_ID > /tmp/CERTBOT_$CERTBOT_DOMAIN/ZONE_ID
echo $RECORD_ID > /tmp/CERTBOT_$CERTBOT_DOMAIN/RECORD_ID
# Sleep to make sure the change has time to propagate over to DNS
sleep 25
/path/to/dns/cleanup.sh
.. code-block:: none
#!/bin/bash
# Get your API key from https://www.cloudflare.com/a/account/my-account
API_KEY="your-api-key"
EMAIL="your.email@example.com"
if [ -f /tmp/CERTBOT_$CERTBOT_DOMAIN/ZONE_ID ]; then
ZONE_ID=$(cat /tmp/CERTBOT_$CERTBOT_DOMAIN/ZONE_ID)
rm -f /tmp/CERTBOT_$CERTBOT_DOMAIN/ZONE_ID
fi
if [ -f /tmp/CERTBOT_$CERTBOT_DOMAIN/RECORD_ID ]; then
RECORD_ID=$(cat /tmp/CERTBOT_$CERTBOT_DOMAIN/RECORD_ID)
rm -f /tmp/CERTBOT_$CERTBOT_DOMAIN/RECORD_ID
fi
# Remove the challenge TXT record from the zone
if [ -n "${ZONE_ID}" ]; then
if [ -n "${RECORD_ID}" ]; then
curl -s -X DELETE "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records/$RECORD_ID" \
-H "X-Auth-Email: $EMAIL" \
-H "X-Auth-Key: $API_KEY" \
-H "Content-Type: application/json"
fi
fi
.. _lock-files:
Lock Files
==========
When processing a validation Certbot writes a number of lock files on your system
to prevent multiple instances from overwriting each other's changes. This means
that be default two instances of Certbot will not be able to run in parallel.
Since the directories used by Certbot are configurable, Certbot
will write a lock file for all of the directories it uses. This include Certbot's
``--work-dir``, ``--logs-dir``, and ``--config-dir``. By default these are
``/var/lib/letsencrypt``, ``/var/logs/letsencrypt``, and ``/etc/letsencrypt``
respectively. Additionally if you are using Certbot with Apache or nginx it will
lock the configuration folder for that program, which are typically also in the
``/etc`` directory.
Note that these lock files will only prevent other instances of Certbot from
using those directories, not other processes. If you'd like to run multiple
instances of Certbot simultaneously you should specify different directories
as the ``--work-dir``, ``--logs-dir``, and ``--config-dir`` for each instance
of Certbot that you would like to run.
.. _config-file:
Configuration file
==================
Certbot accepts a global configuration file that applies its options to all invocations
of Certbot. Certificate specific configuration choices should be set in the ``.conf``
files that can be found in ``/etc/letsencrypt/renewal``.
By default no cli.ini file is created, after creating one
it is possible to specify the location of this configuration file with
``certbot-auto --config cli.ini`` (or shorter ``-c cli.ini``). An
example configuration file is shown below:
.. include:: ../examples/cli.ini
:code: ini
By default, the following locations are searched:
- ``/etc/letsencrypt/cli.ini``
- ``$XDG_CONFIG_HOME/letsencrypt/cli.ini`` (or
``~/.config/letsencrypt/cli.ini`` if ``$XDG_CONFIG_HOME`` is not
set).
Since this configuration file applies to all invocations of certbot it is incorrect
to list domains in it. Listing domains in cli.ini may prevent renewal from working.
Additionally due to how arguments in cli.ini are parsed, options which wish to
not be set should not be listed. Options set to false will instead be read
as being set to true by older versions of Certbot, since they have been listed
in the config file.
.. keep it up to date with constants.py
.. _log-rotation:
Log Rotation
============
By default certbot stores status logs in ``/var/log/letsencrypt``. By default
certbot will begin rotating logs once there are 1000 logs in the log directory.
Meaning that once 1000 files are in ``/var/log/letsencrypt`` Certbot will delete
the oldest one to make room for new logs. The number of subsequent logs can be
changed by passing the desired number to the command line flag
``--max-log-backups``.
.. _command-line:
Certbot command-line options
============================
Certbot supports a lot of command line options. Here's the full list, from
``certbot --help all``:
.. literalinclude:: cli-help.txt
Getting help
============
If you're having problems, we recommend posting on the Let's Encrypt
`Community Forum <https://community.letsencrypt.org>`_.
You can also chat with us on IRC: `(#letsencrypt @
freenode) <https://webchat.freenode.net?channels=%23letsencrypt>`_
If you find a bug in the software, please do report it in our `issue
tracker <https://github.com/certbot/certbot/issues>`_. Remember to
give us as much information as possible:
- copy and paste exact command line used and the output (though mind
that the latter might include some personally identifiable
information, including your email and domains)
- copy and paste logs from ``/var/log/letsencrypt`` (though mind they
also might contain personally identifiable information)
- copy and paste ``certbot --version`` output
- your operating system, including specific version
- specify which installation method you've chosen

View File

@@ -18,7 +18,7 @@ You can use Certbot to easily obtain and configure a free certificate from Let's
joint project of EFF, Mozilla, and many other sponsors. joint project of EFF, Mozilla, and many other sponsors.
Certificates and Lineages Certificates and Lineages
========================= -------------------------
Certbot introduces the concept of a *lineage,* which is a collection of all the versions of a certificate Certbot introduces the concept of a *lineage,* which is a collection of all the versions of a certificate
plus Certbot configuration information maintained for that certificate from plus Certbot configuration information maintained for that certificate from
@@ -29,3 +29,4 @@ a new one.
See also: See also:
:ref:`updating_certs` :ref:`updating_certs`