[Bug 416264] Re: ssh client pauses during GSS negotiation due to delay on reverse lookup in avahi

[marco.pallotta]

So it couldn't be a bug but an expected behavior. I don't know why GSSAPI auth needs reverse lookup but one could argue that you have to set right direct and reverse dns config in order to use SSH. If you haven't it (as in my situation) the problem could be related to you (and me :-)) 
Obviously you can disable GSSAPI auth (if you have access to SSH server) and, personally, I think it shouldn't enabled by default (even if many distro, as RH, do it). 
The suggest could be: enable it, by default, in a server distro (Ubuntu Server) and disable it, by default,  in the desktop release.

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ssh client pauses during GSS negotiation due to delay on reverse lookup in avahi
https://bugs.launchpad.net/bugs/416264
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