[Thinlinc-technical] sshd error msg

[Peter Åstrand]

On Tue, 18 Jan 2011, h zerbes wrote:

> Jan 18 18:29:30 srv205 sshd[6897]: debug1: Connection to port 4915 forwarding to
> localhost port 0 requested.
> Jan 18 18:29:30 srv205 sshd[6897]: debug1: channel 11: new [forwarded-tcpip]
> Jan 18 18:29:30 srv205 sshd[6897]: channel 11: open failed: connect failed:
> Connection refused
> Jan 18 18:29:30 srv205 sshd[6897]: debug1: channel 11: free: forwarded-tcpip:
> listening port 4915 for localhost port 0, connect from 127.0.0.1 port 45394,
> nchannels 12
>
>
> Would that ring a bell with anyone?
>
> On the server, the sshd is listening to port 4915.


Port 4915 is the tunnel for the PulseAudio sound server, for session 1.
The ThinLinc client instructs SSHD to create a remote tunnel, so that
applications in the ThinLinc session can connect to localhost:4915, which
is forwarded to the client sound server.

I'm not sure how I should interpret the SSHD logs, the output does not
match the output of my SSHD. I wonder if this is a bug in SSHD or
something like that.

My suggestion would be that you run this on the client side, when you are
connected to a ThinLinc session:

$ pgrep -l -f /opt/thinlinc/lib/tlclient/ssh

This will give you the SSH command line that the ThinLinc client has
created. This way, you can verify if it requests a strange tunnel (say, to
port 0) or not.


Best regards, 
---
Peter Åstrand		ThinLinc Chief Developer
Cendio AB		http://www.cendio.com
Wallenbergs gata 4
583 30 Linköping	Phone: +46-13-21 46 00