Bug#560238: net.ipv6.bindv6only configuration breaks xdmcp

[Marco d'Itri]

# kdm
clone 560238 -1
severity -1 critical
block 560238 by -1
# gdm
severity 562126 critical
block 560238 by 562126
thanks

On Dec 10, Paul Seelig <pseelig at debian.org> wrote:

> > XDMCP is a protocol, which package is actually broken and how?
> It was not possible anymore to connect to a remote system via xdmcp both
> via gdm and Xephyr. The remote X server appeared to have become
> completely unvisible within the local network.
I verified that, while the X server itself correctly opens the two
sockets, both gdm and kdm only open a v6 one even when bindv6only=1.

Considering the complexity of the program and that they already deal
with mapped addresses, it is probably simpler to just patch to
explicitly set IPV6_V6ONLY = 0.

-- 
ciao,
Marco
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