ssh

FyhTech

Fun with Linux

SSH: transfer files indirectly using scp

Many times I have to remotely transfer files between 2 Hosts. And sometimes those hosts are not able to communicate to each other. In order to copy a file from host1 to host2 I had to copy it to my workstation first. But this is not necessary...

SSH: Creating a reverse tunnel

Let's assume we have a workstation behind a firewall(NAT) and this workstation isn't directly reachable from internet. If we want to connect to this workstation from outside, we have to do some tricky things. SSH has an option to create reverse-tunnels. We can connect from this workstation to any ssh-server in internet and we can use that connection to to get back to the workstation.