[SOLVED] Add listening on IPV6 on Proxmoxhost - is this posible?

[Deleted member 109343]

If your $hostname prefers IPv6 or resolves only to IPv6 then it'll be listening on IPv6. If ipv6 is being used and the net.ipv6.bindv6only sysctl is 0 (which is the default) then it'll be available via both ipv4 and ipv6.
In other words: To listen on IPv6 either
-) put only your IPv6 address for your hostname in /etc/hosts
or
-) put a higher precedence on your IPv6 address locally by adding it as a precedence entry to /etc/gai.conf with a value higher than whatever range entry covers your IPv4 address.

Is this still the case? I'm not exactly sure what is the /etc/gai.conf file and my hosts looks likes this:

127.0.0.1       localhost.localdomain   localhost
123.123.123.123      pve.XXXX.XXXX       pve

# The following lines are desirable for IPv6 capable hosts

::1     ip6-localhost   ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
1231:1231:1231:1231::1  pve.XXXX.XXXX       pve

EDIT: Worth mentioning that I'm posting because I can't get IPv6 on the gui for some reason. My server does have IPv6 connectivity, same goes for containers and VM's.

 

[BeefEater]

If IPv6 addresses are specified in /etc/hosts, spiceproxy listens on the IPv6 addresses only. It does not listen on IPv4 even if the IPv4 address is specified in /etc/hosts. This is the output of "netstat -ntlp | grep 3128" with IPv6 entries present in /etc/hosts:

tcp6       0      0 :::3128                 :::*                    LISTEN      29052/spiceproxy

When the IPv6 entries are commented out in /etc/hosts, spiceproxy listens on IPv4 only:

tcp        0      0 0.0.0.0:3128            0.0.0.0:*               LISTEN      32082/spiceproxy

I think spiceproxy is supposed to be listening on both IPv4 and IPv6 addresses when they are both specified in /etc/hosts, isn't it? Is there a way to tell spiceproxy to listen on both IPv4 and IPv6 addresses?

My PVE host is:

Kernel Version: Linux 5.4.106-1-pve #1 SMP PVE 5.4.106-1 (Fri, 19 Mar 2021 11:08:47 +0100)
PVE Manager Version: pve-manager/6.3-6/2184247e