docs: create a readthedocs manual
The goal is to remove the WIKI since modifications can not be submitted via PRs.
This commit is contained in:
Antoine Eiche
lewo
parent
eb70dd1f55
commit
781073b64d
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@ -0,0 +1,20 @@
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A Complete Backup Guide
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=======================
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This is really easy. First off you should have a backup of your
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``configuration.nix`` file where you have the server config (but that is
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already in a git repository right?)
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Next you need to backup ``/var/vmail`` or whatever you have specified
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for the option ``mailDirectory``. This is where all the mails reside.
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Good options are a cron job with ``rsync`` or ``scp``. But really
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anything works, as it is simply a folder with plenty of files in it. If
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your backup solution does not preserve the owner of the files don’t
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forget to ``chown`` them to ``virtualMail:virtualMail`` if you copy them
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back (or whatever you specified as ``vmailUserName``, and
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``vmailGoupName``).
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Finally you can (optionally) make a backup of ``/var/dkim`` (or whatever
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you specified as ``dkimKeyDirectory``). If you should lose those don’t
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worry, new ones will be created on the fly. But you will need to repeat
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step ``B)5`` and correct all the ``dkim`` keys.
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# Configuration file for the Sphinx documentation builder.
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#
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# This file only contains a selection of the most common options. For a full
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# list see the documentation:
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# https://www.sphinx-doc.org/en/master/usage/configuration.html
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# -- Path setup --------------------------------------------------------------
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# If extensions (or modules to document with autodoc) are in another directory,
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# add these directories to sys.path here. If the directory is relative to the
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# documentation root, use os.path.abspath to make it absolute, like shown here.
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#
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# import os
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# import sys
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# sys.path.insert(0, os.path.abspath('.'))
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# -- Project information -----------------------------------------------------
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project = 'NixOS Mailserver'
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copyright = '2020, NixOS Mailserver Contributors'
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author = 'NixOS Mailserver Contributors'
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# -- General configuration ---------------------------------------------------
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# Add any Sphinx extension module names here, as strings. They can be
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# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
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# ones.
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extensions = [
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]
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# Add any paths that contain templates here, relative to this directory.
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templates_path = ['_templates']
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# List of patterns, relative to source directory, that match files and
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# directories to ignore when looking for source files.
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# This pattern also affects html_static_path and html_extra_path.
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exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
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master_doc = 'index'
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# -- Options for HTML output -------------------------------------------------
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# The theme to use for HTML and HTML Help pages. See the documentation for
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# a list of builtin themes.
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#
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html_theme = 'sphinx_rtd_theme'
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# Add any paths that contain custom static files (such as style sheets) here,
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# relative to this directory. They are copied after the builtin static files,
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# so a file named "default.css" will overwrite the builtin "default.css".
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html_static_path = ['_static']
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How to Add Radicale to SNM
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==========================
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Configuration by @dotlambda
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.. code:: nix
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{ config, pkgs, lib, ... }:
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with lib;
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let
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mailAccounts = config.mailserver.loginAccounts;
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htpasswd = pkgs.writeText "radicale.users" (concatStrings
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(flip mapAttrsToList mailAccounts (mail: user:
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mail + ":" + user.hashedPassword + "\n"
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))
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);
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in {
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services.radicale = {
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enable = true;
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config = ''
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[auth]
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type = htpasswd
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htpasswd_filename = ${htpasswd}
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htpasswd_encryption = crypt
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'';
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};
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services.nginx = {
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enable = true;
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virtualHosts = {
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"cal.example.com" = {
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forceSSL = true;
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enableACME = true;
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locations."/" = {
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proxyPass = "http://localhost:5232/";
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extraConfig = ''
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proxy_set_header X-Script-Name /;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_pass_header Authorization;
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'';
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};
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};
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};
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};
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networking.firewall.allowedTCPPorts = [ 80 443 ];
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}
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How to Develop SNM
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==================
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Run tests
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---------
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You can run the testsuite via
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::
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nix-build tests -A extern.nixpkgs_20_03
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nix-build tests -A intern.nixpkgs_unstable
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...
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Nixops
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------
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You can test the setup via ``nixops``. After installation, do
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::
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nixops create nixops/single-server.nix nixops/vbox.nix -d mail
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nixops deploy -d mail
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nixops info -d mail
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You can then test the server via e.g. \ ``telnet``. To log into it, use
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::
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nixops ssh -d mail mailserver
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Imap
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----
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To test imap manually use
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::
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openssl s_client -host mail.example.com -port 143 -starttls imap
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.. NixOS Mailserver documentation master file, created by
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sphinx-quickstart on Thu Jul 2 20:50:36 2020.
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You can adapt this file completely to your liking, but it should at least
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contain the root `toctree` directive.
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Welcome to NixOS Mailserver's documentation!
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============================================
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.. image:: ../logo/logo.png
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:width: 400
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:alt: SNM Logo
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.. toctree::
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:maxdepth: 2
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quick-start
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setup-guide
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howto-develop
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backup-guide
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howto-add-radicale
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Indices and tables
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==================
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* :ref:`genindex`
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* :ref:`modindex`
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* :ref:`search`
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Quick Start
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===========
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.. code:: nix
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{ config, pkgs, ... }:
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{
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imports = [
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(builtins.fetchTarball {
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url = "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/v2.2.1/nixos-mailserver-v2.2.1.tar.gz";
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sha256 = "03d49v8qnid9g9rha0wg2z6vic06mhp0b049s3whccn1axvs2zzx";
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})
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];
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mailserver = {
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enable = true;
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fqdn = "mail.example.com";
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domains = [ "example.com" "example2.com" ];
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loginAccounts = {
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"user1@example.com" = {
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hashedPassword = "$6$/z4n8AQl6K$kiOkBTWlZfBd7PvF5GsJ8PmPgdZsFGN1jPGZufxxr60PoR0oUsrvzm2oQiflyz5ir9fFJ.d/zKm/NgLXNUsNX/";
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aliases = [
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"info@example.com"
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"postmaster@example.com"
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"postmaster@example2.com"
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];
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};
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};
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};
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}
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A Complete Setup Guide
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======================
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Mail servers can be a tricky thing to set up. This guide is supposed to
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run you through the most important steps to achieve a 10/10 score on
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``mail-tester.com``.
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What you need:
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- A server with a public IP (referred to as ``server-IP``)
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- A Fully Qualified Domain Name (``FQDN``) where your server is
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reachable, so that other servers can find yours. Common FQDN include
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``mx.example.com`` (where ``example.com`` is a domain you own) or
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``mail.example.com``. The domain is referred to as ``server-domain``
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(``example.com`` in the above example) and the ``FQDN`` is referred
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to by ``server-FQDN`` (``mx.example.com`` above).
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- A list of domains you want to your email server to serve. (Note that
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this does not have to include ``server-domain``, but may of course).
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These will be referred to as ``domains``. As an example,
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``domains = [ example1.com, example2.com ]``.
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A) Setup server
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~~~~~~~~~~~~~~~
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The following describes a server setup that is fairly complete. Even
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though there are more possible options (see ``default.nix``), these
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should be the most common ones.
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.. code:: nix
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{ config, pkgs, ... }:
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{
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imports = [
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(builtins.fetchTarball {
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# Pick a commit from the branch you are interested in
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url = "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/A-COMMIT-ID/nixos-mailserver-A-COMMIT-ID.tar.gz";
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# And set its hash
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sha256 = "0000000000000000000000000000000000000000000000000000";
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})
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];
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mailserver = {
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enable = true;
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fqdn = <server-FQDN>;
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domains = [ <domains> ];
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# A list of all login accounts. To create the password hashes, use
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# mkpasswd -m sha-512 "super secret password"
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loginAccounts = {
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"user1@example.com" = {
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hashedPassword = "$6$/z4n8AQl6K$kiOkBTWlZfBd7PvF5GsJ8PmPgdZsFGN1jPGZufxxr60PoR0oUsrvzm2oQiflyz5ir9fFJ.d/zKm/NgLXNUsNX/";
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aliases = [
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"postmaster@example.com"
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"postmaster@example2.com"
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];
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# Make this user the catchAll address for domains example.com and
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# example2.com
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catchAll = [
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"example.com"
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"example2.com"
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];
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};
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"user2@example.com" = { ... };
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};
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# Extra virtual aliases. These are email addresses that are forwarded to
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# loginAccounts addresses.
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extraVirtualAliases = {
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# address = forward address;
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"abuse@example.com" = "user1@example.com";
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};
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# Use Let's Encrypt certificates. Note that this needs to set up a stripped
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# down nginx and opens port 80.
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certificateScheme = 3;
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# Enable IMAP and POP3
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enableImap = true;
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enablePop3 = true;
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enableImapSsl = true;
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enablePop3Ssl = true;
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# Enable the ManageSieve protocol
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enableManageSieve = true;
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# whether to scan inbound emails for viruses (note that this requires at least
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# 1 Gb RAM for the server. Without virus scanning 256 MB RAM should be plenty)
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virusScanning = false;
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};
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}
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After a ``nixos-rebuild switch --upgrade`` your server should be good to
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go. If you want to use ``nixops`` to deploy the server, look in the
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subfolder ``nixops`` for some inspiration.
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B) Setup everything else
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~~~~~~~~~~~~~~~~~~~~~~~~
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Step 1: Set DNS entry for server
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Add a DNS record to the domain ``server-domain`` with the following
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entries
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================ ===== ==== ======== =============
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Name (Subdomain) TTL Type Priority Value
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================ ===== ==== ======== =============
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``server-FQDN`` 10800 A ``server-IP``
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================ ===== ==== ======== =============
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This resolves DNS queries for ``server-FQDN`` to ``server-IP``. You can
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test if your setting is correct by
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::
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||||
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ping <server-FQDN>
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64 bytes from <server-FQDN> (<server-IP>): icmp_seq=1 ttl=46 time=21.3 ms
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...
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Note that it can take a while until a DNS entry is propagated.
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Step 2: Set rDNS (reverse DNS) entry for server
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Wherever you have rented your server, you should be able to set reverse
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DNS entries for the IP’s you own. Add an entry resolving ``server-IP``
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to ``server-FQDN``
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You can test if your setting is correct by
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|
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::
|
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host <server-IP>
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<server-IP>.in-addr.arpa domain name pointer <server-FQDN>.
|
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Note that it can take a while until a DNS entry is propagated.
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Step 3: Set ``MX`` Records
|
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^^^^^^^^^^^^^^^^^^^^^^^^^^
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For every ``domain`` in ``domains`` do: \* Add a ``MX`` record to the
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domain ``domain``
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::
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||||
| Name (Subdomain) | TTL | Type | Priority | Value |
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||||
| ---------------- | ----- | ---- | -------- | ----------------- |
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| `domain` | | MX | 10 | `server-FQDN` |
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||||
You can test this via
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||||
|
||||
::
|
||||
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||||
dig -t MX <domain>
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||||
|
||||
...
|
||||
;; ANSWER SECTION:
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||||
<domain> 10800 IN MX 10 <server-FQDN>
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||||
...
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||||
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||||
Note that it can take a while until a DNS entry is propagated.
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||||
Step 4: Set ``SPF`` Records
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
For every ``domain`` in ``domains`` do: \* Add a ``SPF`` record to the
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||||
domain ``domain``
|
||||
|
||||
::
|
||||
|
||||
| Name (Subdomain) | TTL | Type | Priority | Value |
|
||||
| ---------------- | ----- | ---- | -------- | ----------------- |
|
||||
| `domain` | 10800 | TXT | | `v=spf1 ip4:<server-IP> -all` |
|
||||
|
||||
You can check this with ``dig -t TXT <domain>`` similar to the last
|
||||
section. Note that ``SPF`` records are set as ``TXT`` records since
|
||||
RFC1035.
|
||||
|
||||
Note that it can take a while until a DNS entry is propagated. If you
|
||||
want to use multiple servers for your email handling, don’t forget to
|
||||
add all server IP’s to this list.
|
||||
|
||||
Step 5: Set ``DKIM`` signature
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
In this section we assume that your ``dkimSelector`` is set to ``mail``.
|
||||
If you have a different selector, replace all ``mail``\ ’s below
|
||||
accordingly.
|
||||
|
||||
For every ``domain`` in ``domains`` do: \* Go to your server and
|
||||
navigate to the dkim key directory (by default ``/var/dkim``). There you
|
||||
will find a public key for any domain in the ``domain.txt`` file. It
|
||||
will look like
|
||||
``mail._domainkey IN TXT "v=DKIM1; r=postmaster; g=*; k=rsa; p=<really-long-key>" ; ----- DKIM mail for domain.tld``
|
||||
\* Add a ``DKIM`` record to the domain ``domain``
|
||||
|
||||
::
|
||||
|
||||
| Name (Subdomain) | TTL | Type | Priority | Value |
|
||||
| ---------------- | ----- | ---- | -------- | ----------------- |
|
||||
| mail._domainkey.`domain` | 10800 | TXT | | `v=DKIM1; p=<really-long-key>` |
|
||||
|
||||
You can check this with ``dig -t TXT mail._domainkey.<domain>`` similar
|
||||
to the last section.
|
||||
|
||||
Note that it can take a while until a DNS entry is propagated.
|
||||
|
||||
Step 6: Set ``DMARC`` record
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
For every ``domain`` in ``domains`` do:
|
||||
|
||||
- Add a ``DMARC`` record to the domain ``domain``
|
||||
|
||||
==================== ===== ==== ======== ====================
|
||||
Name (Subdomain) TTL Type Priority Value
|
||||
==================== ===== ==== ======== ====================
|
||||
\_dmarc.\ ``domain`` 10800 TXT ``v=DMARC1; p=none``
|
||||
==================== ===== ==== ======== ====================
|
||||
|
||||
You can check this with ``dig -t TXT _dmarc.<domain>`` similar to the
|
||||
last section.
|
||||
|
||||
Note that it can take a while until a DNS entry is propagated.
|
||||
|
||||
C) Test your Setup
|
||||
~~~~~~~~~~~~~~~~~~
|
||||
|
||||
Write an email to your aunt (who has been waiting for your reply far too
|
||||
long), and sign up for some of the finest newsletters the Internet has.
|
||||
Maybe you want to sign up for the `SNM Announcement
|
||||
List <https://www.freelists.org/list/snm>`__?
|
||||
|
||||
Besides that, you can send an email to
|
||||
`mail-tester.com <https://www.mail-tester.com/>`__ and see how you
|
||||
score, and let `mxtoolbox.com <http://mxtoolbox.com/>`__ take a look at
|
||||
your setup, but if you followed the steps closely then everything should
|
||||
be awesome!
|
||||
12
shell.nix
12
shell.nix
|
|
@ -1,9 +1,11 @@
|
|||
{ nixpkgs ? <nixpkgs>, system ? builtins.currentSystem }:
|
||||
|
||||
with (import nixpkgs { inherit system; }); stdenv.mkDerivation rec {
|
||||
name = "nixos-mailserver-env";
|
||||
env = buildEnv { name = name; paths = buildInputs; };
|
||||
let
|
||||
nixpkgs = (import ./nix/sources.nix).nixpkgs-unstable;
|
||||
pkgs = import nixpkgs {};
|
||||
in
|
||||
pkgs.mkShell {
|
||||
buildInputs = with pkgs; [
|
||||
(python3.withPackages(p: [p.sphinx p.sphinx_rtd_theme]))
|
||||
niv
|
||||
jq clamav
|
||||
];
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue