This has just started happening. I remotely administer an office by
using ssh and vnc. Ssh is running on a Debian/Squeeze server while I
have vnc on each of the workstations. I've been connecting to the
workstations by running:
ssh -L 5900:<workstation internal IP address>:5900 <external office
IP address>
where the workstation internal IP address is in the 192.168.x.x range.
The external office IP address is the router wan address and the
router is set to forward port 22 to the Linux server.
Today I'm getting the error:
bind: Address already in use
I am connected to the Linux server. but I can't connect to the vnc
servers on the workstations. If I connect without the local
forwarding, I don't get the bind message, so it must be referring to
the forwarding.
When I try to access the workstations from another term window with:
xtightvncviewer -encodings "tight" localhost:5900
I get this:
Connected to RFB server, using protocol version 3.8
No authentication needed
Authentication successful
xtightvncviewer: VNC server closed connection
I suspect the latter output is because the local forwarding isn't
happening.
Any ideas?