XMPP - Extensible Messaging and Presence Protocol

This is a page that I created to hold some information I have gathered on the subject (while working on setting up a server) and will have to be revised to make it “cleaner”.

Some relevant links:

• http://www.jabber.org/
• http://www.xmpp.org/
• rfc 3920

DNS configuration to support XMPP

SRV records:

• _xmpp-server._tcp.domain
• _xmpp-client._tcp.domain
• _jabber._tcp.domain
• _jabber-client._tcp.domain

For clients and for older servers the A record of the domain is often used.

Helper scripts

#!/bin/sh

domain=$1

(
    dig srv _xmpp-server._tcp.$domain
    dig srv _xmpp-client._tcp.$domain
    dig srv _jabber._tcp.$domain
    dig srv _jabber-client._tcp.$domain
    dig a $domain
) | perl -ne 'next if /^;/ || /^\s*$/; print'