[FreeNX-kNX] Re: Fedora 14 black screen

[Mario Ceresa]

Thanks Fritz for your clear explanation!

So in the end it was my fault that freenx was not working :)

I still think that adding a debug file for nxnode too would easy
debugging a lot...

Best regards,

Mario

On 29 April 2011 00:01, Fritz Elfert <fritz at fritz-elfert.de> wrote:
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> On 28.04.2011 16:30, Mario Ceresa wrote:
>> Hey Chris,
>>
>> I solved the problem!
> [...]
>> exec /usr/bin/ssh-agent $SHELL
>>
>> Commenting it out did the magic. Any idea why it interferes with NX?
>> It works with local or ssh login.
>
> Because your way of using ssh-agent from a .profile (or .bashrc or any
> *sourced* script) is completely wrong. It *replaces* the currently
> running shell by a second shell which is started from ssh-agent. The
> currently running shell is always terminated, because you use exec. So
> it just *looks* like it works if you login directly. However even with a
> direct login, any settings made before that line (in the invoking shell;
> e.g. an alias definition) are lost. The correct way (for a bourne-like
> shell) is something like this:
>
> SSHAGENT=/usr/bin/ssh-agent
> SSHAGENTARGS="-s"
> if [ -z "$SSH_AUTH_SOCK" -a -x "$SSHAGENT" ]; then
>   eval `$SSHAGENT $SSHAGENTARGS`
>   trap "kill $SSH_AGENT_PID" 0
> fi
>
> More examples here:
> http://mah.everybody.org/docs/ssh#run-ssh-agent
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