Need help installing SSH tunnel

From: Andre Hinrichs (hinrichs_at_mpia.de)
Date: 07/26/03 

Date: Fri, 25 Jul 2003 16:54:22 -0700

Hi all!

Unfortunately, I've spent nearly a week of testing without any success.
I've read a lot of web sites related to SSH tunneling, but nothing really
helped.
Here is the problem:

First of all, let me say that a SSH connection to the remote machine is
fully functional, means the SSH server is up.
Second, I can do a telnet from the remote machine to the mail daemon on the
same machine means the mail daemon is up also.
Third, when I try to build a SSH tunnel, everything looks fine until I try
to telnet from the local machine over the SSH tunnel to the remote mail
daemon.
The command I used installing the tunnel is:

ssh -v remote.machine.com -L 25110:localhost:110 -L 25025:localhost:25 -4

Means I want to have a tunnel for SMTP and POP3. The ports on the local
machine are 25110 and 25025 which is OK. The command succeeds. I have a
shell on the remote machine and the debug mode says that the tunnel has
been successfully installed:

debug1: Connections to local port 25025 forwarded to remote address
localhost:25

But when I try to connect I get a "Connection refused" error:

Local machine:

>telnet localhost 25025
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.

Remote machine (the tunnel connection):

channel 3: open failed: connect failed: Connection refused
debug1: channel_free: channel 3: direct-tcpip: listening port 25025 for
localhost port 25, connect from 127.0.0.1 port 1220, nchannels 4

What am I doing wrong? Do I need to configure something special?
Let me say, that I've already added 'AllowTcpForwarding yes' and
'GatewayPorts yes' to /etc/ssh/sshd_config

Any help is highly welcome, since I really need this connection.

Thanx to all
Andre

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