Bug#449164: xorg: IPv6 addresses in hosts breaks XDMCP logins

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Juergen Kosel wrote:
> Package: xorg
> Version: 1:7.1.0-19
> Severity: normal
>
> Hello,
>
> after adding the IPv6 addresses of my machines to /etc/hosts, login by XDMCP
> becomes impossible. Either the server doesn't provide the greeter windows 
> (with login prompt) at all. Or user becomes imediattly logged out again.
>
> The /etc/hosts entries locks like that:
> 2001:5c0:8d3a:0:2e0:98ff:fe98:6c8e 	compac.priv.net.de compac
> 2001:5c0:8d3a::1 			ruetsch44.priv.net.de ruetsch44
> 2001:5c0:8d3a:0:201:6cff:fed0:5cd	acer-ilzleite.priv.net.de acer-ilzleite
>
> Workaround: Remove the entries from /etc /hosts again.
>   

Which display manager are you using? xdm, gdm, kdm? Those are
responsible of XDMCP iirc.

Brice