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Our office has a /24 IPv4 and a /48 IPv6 network.
Test to see if it would be possible to run parts of the TERENA Secretariat office network on IPv6 only.
This page keeps track of progress, bugs, and issues with this transition.
I will start with all systems and services that are used only internally.

Milestones

(tick) 2011-02-07

Entire host IPv6 (removed IPv4 address and A record) (smile)

svn.terena.org

(tick)

All linux servers use IPv6 resolvers

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

(tick) 2011-01-30

All linux managed by SSH on via IPv6 only

Configure ListenAddress :: in sshd_config.

(tick)

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

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

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(tick)

Nagios runs only on IPv6

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

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(tick)

Entire host IPv6 (removed IPv4 address and A record) (smile)

svn.terena.org

To avoid name resolution problems, it was necessary to copy to the legacy 127.0.1.1 entries to ::1:

...