[PVE-User] Proxmox KVM VNC socket is not reachable in IPv6

StalkR stalkr at gmail.com
Sat Feb 13 11:24:06 CET 2010


I'm new to Proxmox and it's a really good product.
However, there is a minor issue I've encountered while using the
Proxmox interface in IPv6.

I can browse the Proxmox interface in IPv6 (Apache listens on IPv6
TCP) but when I click on "Open VNC console" for a KVM VM it does not
work. Indeed the applet tries to connect to the socket created with
netcat but GNU Netcat has no IPv6 support and only creates an IPv4
I first thought replacing netcat with netcat6 would be the solution,
however it does not have -c switch (spawn a shell and run command) but
only -e (exec) and I think it is why it does not work.
Then I tried with socat - which syntax is different than netcat - but
I could not make it work either (I think for the same reason than
netcat6, only EXEC parameter).

In the meantime, an alternative solution can be to create an IPv6-only
TCP server which forks and forwards data to the IPv4 TCP socket
created by netcat. I'm doing this with socat:
$ socat TCP6-LISTEN:5900,ipv6only=1,fork TCP:localhost:5900

Any ideas?


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