LDAP
From Wikitech
Hosts should be to use LDAP for users and some other stuff.
setup LDAP client on new machine
- run /home/wikipedia/bin/setup-ldap
- copy zwinger:/etc/ldap.conf to the new machine
LDAP server is on srv1 (master) and srv2 (slave). failover should be automatic. to add new users, add them on srv1, then run /home/wikipedia/bin/ldapsync. srv2 will update automatically.