I have been running Ejabberd for
some time. Recently, some friends asked me if I would serve Jabber for
their domains too, and I was pleased to find that relatively easy to do.
Let's suppose I want to serve foo@example.org. The first
step is to add example.org to the list of hostnames in
ejabberd.cfg:
{hosts, ["toroid.org", "example.org"]}
Next, I have to restart Ejabberd to make it accept the new hostname.
Then I use ejabberdctl to register the new JID, while soothing irate
users whose connection to the server was dropped during the previous
step, and wishing that the server could just accept arbitrary hostnames
in JIDs and do the necessary magic internally without needing to be
restarted.
ejabberdctl register foo example.org somepassword
Now the new user should be able to login to the server using their
favourite Jabber client.
Finally, the following SRV records must be added to the
example.org zone in order to delegate XMPP/Jabber service
to my server.
_jabber._tcp.example.org. SRV 0 0 5222 xmpp.toroid.org.
_xmpp-client._tcp.example.org. SRV 0 0 5222 xmpp.toroid.org.
_xmpp-server._tcp.example.org. SRV 0 0 5269 xmpp.toroid.org.
Once the world can see these records, anyone trying to contact someone
at example.org will talk to my server (that is, unless it
is an
unpatched Net::XMPP
client).