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i'm using SSH to log into one machine. i also have ssh access on a second machine that stores some important files. both machines are a few hours away.
what i would like to do is SSH into the first machine, and then from there, get files from my account on the second machine.
Ok, I think this is what your situation is. You have three machines: A, B, and C. You are at machine C. Machine C can connect to B but not to A. Machine B can connect to A or C.
If this is the case, what you need to do is setup SSH forwarding. The man page on ssh will tell you how to do this specifically, but the idea is you setup ssh to listen on a random port on machine B. When you connect to that port it'll actually connect you through to machine A.
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