Exit Codes on Reverse Tunnel bug?
Damien Miller
djm at mindrot.org
Thu Nov 11 21:07:09 EST 2010
Could you try 5.6p1? I think I fixed this bug in August.
On Wed, 10 Nov 2010, JL Picard wrote:
>
> I ran the following command to create a reverse tunnel from another server back to my local host
> ssh -4xnT -o PreferredAuthentications=publickey -o ConnectTimeout=10 -o BatchMode=yes -f \
> -o ExitOnForwardFailure=yes -N -R myTargetHost:2525:myLocalHost:25 myUser at myTargetHost
>
> and on machine=myTargetHost, the port 2525 was already being utilized, so it gave me this error and exited:
> Error: remote port forwarding failed for listen port 2525
>
> However, when I got the exit code it returned a zero (Successful exit code)
>
>
> When I try to attach to a localhost port that is being utilized using the (-L) option, ssh exits with a 255 exit code.
>
> So at very least it appears to be inconsistent behavior between the two tunneling methods.
>
> The version I am using is: OpenSSH_5.4p1
> Platform is Solaris 10 Sparc on both machines (and before anyone asks, I am not using Sun/Oracle's version of SSH, I am using the version at www.opencsw.org)
>
> Thanks in advance for any response you can provide.
>
>
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