All linux servers use IPv6 resolvers

Only statically configured IPv6 addresses in /etc/resolv.conf

All linux managed by SSH on IPv6 only

Configure ListenAddress :: in sshd_config.

All linux servers run Postfix on IPv6 only (except public mail server)

Remove IPv4 address from $mynetworks, and set inet_protocols = ipv6

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="1d35c3239076aabc-5e24682f-42ef4799-80cdbe94-cbf0705085ba0692eb4ac857"><ac:plain-text-body><![CDATA[

Nagios runs only on IPv6

Configure Listen [2001:610:158:98d::42]:80 in /etc/apache/ports.conf.

]]></ac:plain-text-body></ac:structured-macro>

Entire host IPv6 (removed IPv4 address and A record)

svn.terena.org

All PostgreSQL server use IPv6

Should be configured on all hosts (web, mail, dev, etc). To do.