6

I can only get to hostB from hostA, and I want to run commands on hostB.

ssh -t $hostA ssh -t $hostB "

   echo 'Hello World!'

   echo 'Test!'

"

At the moment, this will connect to hostA then hostB and the script will pause. As soon as i type exit (from hostB) I return to hostA, the 2 echo commands are printed and then automatically exits from hostA.

How can I run commands on hostB?

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2 Answers 2

Reset to default
3

Changing code as using here document and sshpass can do the trick

ssh -T user@$hostA <<EOA
sshpass -p password ssh  -T user@$hostB <<EOB
echo hello 
EOB
EOA
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9 Comments

Before hostA prompts for password I get Pseudo-terminal will not be allocated because stdin is not a terminal. And then I type in password for hostA... Then no password prompt is given for hostB and I immediately get Pseudo-terminal will not be allocated because stdin is not a terminal. Permission denied, please try again. Permission denied, please try again. Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
@j.con get rid of the -t option. i am not sure but it may work
-t removed on both ssh lines... same effect
@j.con sorry but isnt it -T instead of -t??
@j.con, ...but having a password prompt at all is silly when you could use agent authentication and present the same authentication token to both servers.
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3

Use the -J option.

ssh $hostB -J $hostA "..."
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