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Editorial Team
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Asked: 2026-06-18T15:16:22+00:00

I have problem to connect with SSH to remote host but only on my

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I have problem to connect with SSH to remote host but only on my home network (provider). If I am at another network (my friend in same city – different provider) the connection works perfect. Ping to the server (at my home) works. Also this problem I have only with this server. If I try connect to other host from my home network, it works. What should I do?

nich@ubuntu:/etc$ ssh -vvv xxx@www.sci.muni.cz
OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to www.sci.muni.cz [147.251.24.3] port 22.
debug1: Connection established.
debug1: identity file /home/nich/.ssh/id_rsa type -1
debug1: identity file /home/nich/.ssh/id_rsa-cert type -1
debug1: identity file /home/nich/.ssh/id_dsa type -1
debug1: identity file /home/nich/.ssh/id_dsa-cert type -1
debug1: identity file /home/nich/.ssh/id_ecdsa type -1
debug1: identity file /home/nich/.ssh/id_ecdsa-cert type -1
ssh_exchange_identification: Connection closed by remote host

nich@ubuntu:/etc$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 12.04.2 LTS
Release:        12.04
Codename:       precise
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1 Answer

  1. Editorial Team

    Here’s how you can attempt to create a tunnel.

    • intermediary is a machine you trust to do the forwarding for you

    • remote is the machine you’re trying to get to

      ssh -N -L 20000:remote:22 user@intermediary

    Once you do this your local machine will listen on port 20000. When you connect with ssh to this port, on your host, the connection will be forwarded over the tunnel to intermediary who will in turn forward it to remote.

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