Change Details

We need IPv6 for LXC containers, as we need to reach our SMTP, POP, IMAP servers through IPv6, but also allow the SMTP server to contact another IPv6 server. The first need (incoming IPv6) would have been easily doable with a socat script (see P80 for an example). The second requires real connectivity for the container.

Currently, mail.nasqueron.org SMTP server connects to other servers in IPv4 only: `Feb 15 15:02:52 hervil postfix/smtp[63552]: connect to gmail-smtp-in.l.google.com[2a00:1450:4009:c0f::1a]:25: No route to host` IPv6 is supported on the hypervisor where the mail server Hervil is, directly from a OVH /64 range. Plan: [ ] Add IPv6 to NetBox [ ] Add IPv6 to pillar - https://devcentral.nasqueron.org/source/operations/browse/main/pillar/nodes/nodes.sls$189 [ ] Add to the DNS zone a AAAA record for mail.nasqueron.org [ ] Check with `nc -zv 2a00:1450:4009:c0f::1a 25` if we can reach a SMTP server through IPv6 [ ] Check we listen to IPv6 for Postfix server [ ] Check we listen to IPv6 for Dovecot server [ ] Check we listen to IPv6 for nginx

We need IPv6 for LXC containersCurrently, as we need to reach our SMTP, POP, IMAP servers through IPv6, but also allow the SMTP server to contact another IPv6 server.mail.nasqueron.org SMTP server connects to other servers in IPv4 only: `Feb 15 15:02:52 hervil postfix/smtp[63552]: connect to gmail-smtp-in.l.google.com[2a00:1450:4009:c0f::1a]:25: No route to host` The first need (incoming IPv6) would have been easily doable with a socat script (see P80 for an example)IPv6 is supported on the hypervisor where the mail server Hervil is, directly from a OVH /64 range. The second requires real connectivity for the container.Plan: [ ] Add IPv6 to NetBox [ ] Add IPv6 to pillar - https://devcentral.nasqueron.org/source/operations/browse/main/pillar/nodes/nodes.sls$189 [ ] Add to the DNS zone a AAAA record for mail.nasqueron.org [ ] Check with `nc -zv 2a00:1450:4009:c0f::1a 25` if we can reach a SMTP server through IPv6 [ ] Check we listen to IPv6 for Postfix server [ ] Check we listen to IPv6 for Dovecot server [ ] Check we listen to IPv6 for nginx