1. Install

    aptitude install ejabberd

2. edit /etc/ejabberd/ejabberd.conf
{hosts, ["jabber.myserver.tdl"]}.
{acl, admin, {user, "myuser", "jabber.myserver.tdl"}}.
3. restart server

    /etc/init.d/ejabberd restart

4. admin einrichten

    ejabberdctl register myuser jabber.myserver.tdl geheim

5. erneuter restart

   /etc/init.d/ejabberd restart

6. status check

   ejabberdctl status

7. WebGui starten

   http://jabber.myserver.tdl:5280/admin

   Benutzername: myuser@jabber.myserver.tdl

8. Clients via console hinzufügen

   ejabberdctl register myuser2 jabber.myserver.tdl geheim2

Firewall Setup

# 5222 für Jabberclients (c2s)
# 5269 Server2Server (s2s)
# 5280 admininterface auf loopback-device, erreichbar über ssh-tunnel
IPTABLES -A INPUT -m state --state NEW -p tcp --dport 5222 -j ACCEPT
IPTABLES -A INPUT -m state --state NEW -p tcp --dport 5269 -j ACCEPT

Generating a Self-Signed SSL Certificate (http://www.jabberdoc.org/app_sslkey.html)

openssl req -new -x509 -newkey rsa:4096 -days 3650 -keyout privkey.pem -out server.pem
openssl rsa -in privkey.pem -out privkey.pem
cat privkey.pem >> server.pem
rm privkey.pem

enter your domain name as the Common Name for your certificate!