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homebrewserver.club/content/configuring_an_xmpp_server_prosody_0.10.md
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Title: Configuring an XMPP server for secure, mobile instant messaging
Date: 2018-1-09
Category: xmpp
Tags: xmpp, chat, guide, instant messaging, prosody
Slug: configuring-a-modern-xmpp-server-0.10
Description: Hands-on step-by-step guide that shows how to configure Prosody 0.10 for security, mobile messaging and ease of use.
status: draft
[TOC]
Attention!
---
This article describes how to set up Prosody 0.10 and kept online only for archival reasons! You are probably looking for the following article <https://homebrewserver.club/configuring-a-modern-xmpp-server.html>
Attention!
---
This is a guide to set up a modern XMPP server focused on security and mobile messaging. The whole guide assumes Debian stable running on the server, the fact that you will end up hosting a few of your friends and that you have some basic skills working on a linux command line.
To make your server communicate make sure following ports are open in your firewall:
:::console
5222 (for client to server)
5269 (server to server)
5280 (default http port for prosody)
5281 (default https port for prosody)
Enabling HTTPS
---
First we acquire a signed HTTPS-certificate via Let's Encrypt:
This is among others required for Gajim plugins to work properly; self-generated certs will not work.
Install Certbot and get new certificates for your domain (replace myserver.org with your own):
:::console
sudo apt-get update && sudo apt-get install certbot
certbot certonly -d muc.myserver.org -d dump.myserver.org -d myserver.org
Should you succeed, you will be able to read something like:
:::console
Congratulations! Your certificate and chain have been saved at
/etc/letsencrypt/live/myserver.org/fullchain.pem. Your cert will
expire on 2018-01-13. To obtain a new or tweaked version of this
certificate in the future, simply run certbot-auto again. To
non-interactively renew *all* of your certificates, run
"certbot-auto renew"
Take note of the path where the certificate is stored as we will use it later.
Installing and setting up MySQL as a storage back-end
---
First update your repositories and install MySQL
:::console
apt-get update && apt-get install mysql-server
Run mysql as the root user:
:::console
mysql -u root -p
In mysql:
:::console
mysql> create database prosody;
mysql> show databases;
Result should be something like:
:::console
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| prosody |
+--------------------+
4 rows in set (0.00 sec)
Create a database account for prosody
:::console
mysql> create user prosody;
Give the user prosody the rights to access the database, make sure to change the password and take note of it
:::console
mysql> grant all on prosody.* to 'prosody'@'localhost' identified by 'userPassword';
Exit mysql:
:::console
exit;
Installing and configuring Prosody, the XMPP server
---
Install the newest version of Prosody and its dependencies from the official prosody repository:
:::console
echo deb http://packages.prosody.im/debian $(lsb_release -sc) main | sudo tee -a /etc/apt/sources.list
wget https://prosody.im/files/prosody-debian-packages.key -O- | sudo apt-key add -
sudo apt get update && apt-get install prosody lua-dbi-mysql lua-zlib lua-sec
Add the Let's Encrypt Certificates to Prosody and make sure Prosody can use them
:::console
cp /etc/letsencrypt/live/myserver.org/*.pem /etc/prosody/certs/
Make sure the certificates are owned by prosody and legible only by root:
:::console
chown -R prosody:prosody /etc/prosody/
chmod -R 700 /etc/prosody/certs/
Install the newest prosody plugins:
:::console
apt-get install mercurial
cd /usr/src
hg clone https://hg.prosody.im/prosody-modules/ prosody-modules
Make a backup of the default prosody configuration and install [the one by the homebrewserver.club](https://homebrewserver.club/downloads/prosody.0.10.cfg.lua)
:::console
cd /etc/prosody
cp prosody.cfg.lua prosody.cfg.lua.original
wget https://homebrewserver.club/downloads/prosody.0.10.cfg.lua -O prosody.cfg.lua
The homebrewserver.club prosody config:
:::console
-- a custom prosody config focused on high security and ease of use across (mobile) clients
-- provided to you by the homebrewserver.club
-- the original config file (prosody.cfg.lua.original) will have more information
plugin_paths = { "/usr/src/prosody-modules" } -- non-standard plugin path so we can keep them up to date with mercurial
modules_enabled = {
"roster"; -- Allow users to have a roster. Recommended ;)
"saslauth"; -- Authentication for clients and servers. Recommended if you want to log in.
"tls"; -- Add support for secure TLS on c2s/s2s connections
"dialback"; -- s2s dialback support
"disco"; -- Service discovery
"posix"; -- POSIX functionality, sends server to background, enables syslog, etc.
"private"; -- Private XML storage (for room bookmarks, etc.)
"vcard"; -- Allow users to set vCards
"version"; -- Replies to server version requests
"uptime"; -- Report how long server has been running
"time"; -- Let others know the time here on this server
"ping"; -- Replies to XMPP pings with pongs
"register"; --Allows clients to register an account on your server
"pep"; -- Enables users to publish their mood, activity, playing music and more
"carbons"; -- XEP-0280: Message Carbons, synchronize messages accross devices
"smacks"; -- XEP-0198: Stream Management, keep chatting even when the network drops for a few seconds
"mam"; -- XEP-0313: Message Archive Management, allows to retrieve chat history from server
"csi"; -- XEP-0352: Client State Indication
"http"; -- mod_http needed for XEP-363
"admin_adhoc"; -- Allows administration via an XMPP client that supports ad-hoc commands
"blocklist"; -- XEP-0191 blocking of users
--"cloud_notify"; -- Support for XEP-0357 Push Notifications for compatibility with ChatSecure/iOS.
-- iOS typically end the connection when an app runs in the background and requires use of Apple's Push servers to wake up and receive a message. Enabling this module allows your server to do that for your contacts on iOS.
-- However we leave it commented out as it is another example of vertically integrated cloud platforms at odds with federation, with all the meta-data-based surveillance consequences that that might have.
"omemo_all_access"; -- Allow for OMEMO E2E between contacts that haven't added each other
"pep_vcard_avatar"; -- use XEP-0153: vCard-Based Avatars to see the avatars of clients that use XEP-0084: User Avatar and vice versa.
};
allow_registration = false; -- Enable to allow people to register accounts on your server from their clients, for more information see http://prosody.im/doc/creating_accounts
-- These are the SSL/TLS-related settings.
ssl = {
certificate = "/etc/prosody/certs/fullchain.pem";
key = "/etc/prosody/certs/privkey.pem";
}
c2s_require_encryption = true -- Force clients to use encrypted connections
-- Force certificate authentication for server-to-server connections?
-- This provides ideal security, but requires servers you communicate
-- with to support encryption AND present valid, trusted certificates.
-- NOTE: Your version of LuaSec must support certificate verification!
-- For more information see http://prosody.im/doc/s2s#security
s2s_secure_auth = false
pidfile = "/var/run/prosody/prosody.pid"
authentication = "internal_hashed"
storage = "sql"
-- Make sure to change the password
sql = { driver = "MySQL", database = "prosody", username = "prosody", password = "userPassword", host = "localhost" }
log = {
info = "/var/log/prosody/prosody.log"; -- Change 'info' to 'debug' for verbose logging
error = "/var/log/prosody/prosody.err";
"*syslog";
}
VirtualHost "myserver.org"
-- Enable http_upload to allow image sharing across multiple devices and clients
Component "dump.myserver.org" "http_upload"
---Set up a MUC (multi-user chat) room server on conference.example.com:
Component "muc.myserver.org" "muc"
Replace all instances of the placeholder domain name and passwords in the config file with your own:
:::console
sed -i 's/myserver.org/yourdomain.net/g' prosody.cfg.lua && sed -i 's/userPassword/yourownpassword/g' prosody.cfg.lua
Alternatively you can change them by hand. They are on line 62, 70, 73, 76 of prosody.cfg.lua
Finishing up
---
After you've set up all of the above it is time to start the server:
:::console
/etc/init.d/prosody restart
Users can be added from the command line, you will also be prompted for a password:
:::console
prosodyctl adduser me@myserver.org
Alternatively you can change "allow_registration = false;" to "allow_registration = true;" in the config (line 35) to allow users to register accounts on your server via their clients.
Now you can try connecting to your own server by using a client like Gajim or Conversations. Login with the above configured username and password.
If you have questions about Prosody, the project's [documentation](http://prosody.im/doc) is quite good. If you can't find answers there, try contacting prosody developers and users directly via [the Prosody XMPP chatroom](xmpp://prosody.conference.prosody.im?join)
This guide is a companion to our article [Have You Considered The Alternative?](http://homebrewserver.club/have-you-considered-the-alternative.html) on instant messaging. Also check out our guide on [XMPP clients](http://homebrewserver.club/picking-modern-xmpp-clients.html).
**edit 9th of january 2018**
updated config for new debian stable and prosody 0.10
Previous articles descibed how to set up [Prosody 0.9](https://homebrewserver.club/drafts/configuring-a-modern-xmpp-server-0.9.html)
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