I want to create a script that when I double click runs:
- 'ssh -Y server1'
- WITHIN server1 run 'ssh -Y server2' (server2 not accessible outside)
- I now have the terminal prompt connected to server2 waiting to run commands
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What does "it doesn't work" mean? What happens, what error messages (if any)?Jenny D– Jenny D2014-02-01 09:14:27 +00:00Commented Feb 1, 2014 at 9:14
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It seemed to be stuck in limbo essentially, so no stdin.Molten Ice– Molten Ice2014-02-01 11:56:51 +00:00Commented Feb 1, 2014 at 11:56
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2 Answers
You can use SSH's -W option to achieve this. From the manual:
-W host :port
Requests that standard input and output on the client be forwarded to host on port over the secure channel. Implies -N, -T, ExitOnForward-Failure and ClearAllForwardings. Works with Protocol version 2 only.
You can set this up in your ~/.ssh/config to simplify the process, like so:
Host Server1
Hostname 200.200.200.1
Port 2222
User you
IdentityFile ~/.ssh/id_rsa
Host Server2
Hostname 192.168.1.2
Port 3333
User you
IdentityFile ~/.ssh/id_dsa
# Hop to 2
Host Server2
ProxyCommand ssh -W %h:%p Server1You then simply ssh Server2 and—provided you have set up your authentication correctly—you will be logged in to Server2.
answered Feb 1, 2014 at 8:11
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Not only does this work, but is a really elegant way to do this. Thank you very much!Molten Ice– Molten Ice2014-02-01 11:47:57 +00:00Commented Feb 1, 2014 at 11:47
Furthermore to what Jason said, another less elegant solution where you don't need to change the config and can enter other ssh parameters like -t and -Y:
ssh -tY user@server1 "ssh -tY user@server2; bash -s"