Mailing List Archive: OpenSSH: Users

cant login with ssh through reverse ssh tunnel

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sarta53 at yahoo

Jan 28, 2010, 4:34 PM

Post #1 of 2 (761 views)
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cant login with ssh through reverse ssh tunnel

I'm having the following problem trying to ssh through a reverse ssh tunnel.

From home, I want to log into my work computer which is behind a firewall. So on my work computer, I log into my home computer like so:
ssh -R 7071:127.0.0.1:22 -p 22 user [at] home_ip_addres

That should make my home computer listen on port 7071. So from home I should be able to log into the work computer like so:

ssh localhost -p 7071 -v

Unfortunately it gives the following error:

debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for localhost
debug1: Applying options for *
debug1: /etc/ssh/ssh_config line 33: Deprecated option "RhostsAuthentication"
debug1: /etc/ssh/ssh_config line 37: Deprecated option "FallBackToRsh"
debug1: /etc/ssh/ssh_config line 38: Deprecated option "UseRsh"
debug1: Connecting to localhost [127.0.0.1] port 7071.
debug1: Connection established.
debug1: read PEM private key done: type DSA
debug1: read PEM private key done: type RSA
debug1: identity file /root/.ssh/identity type -1
debug1: identity file /root/.ssh/id_rsa type -1
debug1: identity file /root/.ssh/id_dsa type -1
ssh_exchange_identification: Connection closed by remote host

Is there a way to get this working by running SSH in a less secure mode or anything?

sarta53 at yahoo

Jan 29, 2010, 2:58 PM

Post #2 of 2 (718 views)
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Re: cant login with ssh through reverse ssh tunnel [In reply to]

> I think you need to replace:
>
> ssh -R 7071:127.0.0.1:22 -p 22 user [at] home_ip_addres
>
> with
>
> ssh -R 7071:IP_WORK_COMPUTER:22 -p 22 user [at] home_ip_addres
>
> also, try passing the -v for verbose for debugging.
>
> cheers,
> --scm

Thanks, I tried changing the IP but got the same error.

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