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2

Reverse SSH Tunnel problem

rated 0 times [ 2] [ 0] / answers: 1 / hits: 982 / 1 Year ago, fri, may 12, 2023, 10:43:55

I have an existing setup as follows,
workstation <-> Maas server <-> VM's.

The Maas server has two interfaces, eth0 has a static address of 192.168.x.x and the eth1 has 10.4.x.x. eth1 is also acting as DHCP manager for the VM's. My workstation's ip is 10.x.x.x and I can ssh the Maas server. The Maas server in turn is also ssh connect to the VM's. Because the workstation and VM's are on a different network I can't connect to the VM's directly.

I tried reverse SSH tunneling with,

ssh -R 6333:localhost:22 [email protected]

from one of the VM's to the Maas server. Afterwards I tried to connect from my workstation to the VM using,

ssh [email protected] -p 6333

But I repeatedly get this error, 'Permission denied (publickey).'

I have already copied my public key to in the VM's authorized key files, but I get same error. Is there maybe another method to connect from the workstation to the VM ! If so, please advise.

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fenddy

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4 Years ago

answered 1 Year ago barted · Accepted Answer

Let me suggest you to use sshuttle, it easily creates a 'vpn' over ssh in your workstation run the following commands:

$ sudo apt-get install sshuttle

$ sshuttle -r [email protected] 10.x.x.x/24  # /24 is the subnet

Then in another terminal (also in workstation) you should be able connect automagically to any host in 10.x.x.x/24 subnet.

I do this all the time, I really recommend you to use sshuttle.