Zimbra install on Debian Testing

Nightmare install with Zimbra on Debian Testing.

I kept on encountering the following error:

Creating server entry for {myserver}...failed

and in the detailed log:

ERROR: service.FAILURE (system failure: ZimbraLdapContext) (cause: javax.naming.CommunicationException {myserver}:389)

The standard diagnosis is a DNS / host miconfiguration:

http://www.zimbra.com/forums/installation/12974-still-fighting-split-dns.html

I tried everything I could relating to fixing a DNS and host configuration without any luck.

I then found this:

http://www.zimbra.com/forums/installation/37282-installation-zcs-6-0-5-open-source-debian-5-amd64-ldap-failure.html

The problem is a resolution error because Java is trying to use IPv6.

To disable IPv6, from http://wiki.debian.org/DebianIPv6:

echo net.ipv6.conf.all.disable_ipv6=1 > /etc/sysctl.d/disableipv6.conf

Presto. Works.

NIGHTMARE!