Pass SSH Escape into nested SSH session












1















Suppose I ssh from my laptop to a server alpha, then from there ssh to a server beta.



If the connection from alpha to beta dies, is it possible to pass SSH's escape (~.) across the ssh connection from my laptop to alpha, to the ssh client connected to beta?










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    1















    Suppose I ssh from my laptop to a server alpha, then from there ssh to a server beta.



    If the connection from alpha to beta dies, is it possible to pass SSH's escape (~.) across the ssh connection from my laptop to alpha, to the ssh client connected to beta?










    share|improve this question

























      1












      1








      1








      Suppose I ssh from my laptop to a server alpha, then from there ssh to a server beta.



      If the connection from alpha to beta dies, is it possible to pass SSH's escape (~.) across the ssh connection from my laptop to alpha, to the ssh client connected to beta?










      share|improve this question














      Suppose I ssh from my laptop to a server alpha, then from there ssh to a server beta.



      If the connection from alpha to beta dies, is it possible to pass SSH's escape (~.) across the ssh connection from my laptop to alpha, to the ssh client connected to beta?







      ssh






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      asked Dec 4 '14 at 15:10









      Matthew G.Matthew G.

      12112




      12112






















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          I think man ssh says it all:




          -e escape_char

          Sets the escape character for sessions with a pty (default: ‘~’).
          The escape character is only recognized at the beginning of a
          line. The escape character followed by a dot (‘.’) closes the
          connection; followed by control-Z suspends the connection; and
          followed by itself sends the escape character once
          . Setting the
          character to “none” disables any escapes and makes the session
          fully transparent.




          You need to send ~~. Alternatively you could change the escape character for every ssh hop you take with ssh -e escape_char.



          You can also specify it as a runtime option; e.g. -o EscapeChar=:



          Thus you may also add it to your client config file ${HOME}/.ssh/config.






          share|improve this answer

























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            1 Answer
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            active

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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            3














            I think man ssh says it all:




            -e escape_char

            Sets the escape character for sessions with a pty (default: ‘~’).
            The escape character is only recognized at the beginning of a
            line. The escape character followed by a dot (‘.’) closes the
            connection; followed by control-Z suspends the connection; and
            followed by itself sends the escape character once
            . Setting the
            character to “none” disables any escapes and makes the session
            fully transparent.




            You need to send ~~. Alternatively you could change the escape character for every ssh hop you take with ssh -e escape_char.



            You can also specify it as a runtime option; e.g. -o EscapeChar=:



            Thus you may also add it to your client config file ${HOME}/.ssh/config.






            share|improve this answer






























              3














              I think man ssh says it all:




              -e escape_char

              Sets the escape character for sessions with a pty (default: ‘~’).
              The escape character is only recognized at the beginning of a
              line. The escape character followed by a dot (‘.’) closes the
              connection; followed by control-Z suspends the connection; and
              followed by itself sends the escape character once
              . Setting the
              character to “none” disables any escapes and makes the session
              fully transparent.




              You need to send ~~. Alternatively you could change the escape character for every ssh hop you take with ssh -e escape_char.



              You can also specify it as a runtime option; e.g. -o EscapeChar=:



              Thus you may also add it to your client config file ${HOME}/.ssh/config.






              share|improve this answer




























                3












                3








                3







                I think man ssh says it all:




                -e escape_char

                Sets the escape character for sessions with a pty (default: ‘~’).
                The escape character is only recognized at the beginning of a
                line. The escape character followed by a dot (‘.’) closes the
                connection; followed by control-Z suspends the connection; and
                followed by itself sends the escape character once
                . Setting the
                character to “none” disables any escapes and makes the session
                fully transparent.




                You need to send ~~. Alternatively you could change the escape character for every ssh hop you take with ssh -e escape_char.



                You can also specify it as a runtime option; e.g. -o EscapeChar=:



                Thus you may also add it to your client config file ${HOME}/.ssh/config.






                share|improve this answer















                I think man ssh says it all:




                -e escape_char

                Sets the escape character for sessions with a pty (default: ‘~’).
                The escape character is only recognized at the beginning of a
                line. The escape character followed by a dot (‘.’) closes the
                connection; followed by control-Z suspends the connection; and
                followed by itself sends the escape character once
                . Setting the
                character to “none” disables any escapes and makes the session
                fully transparent.




                You need to send ~~. Alternatively you could change the escape character for every ssh hop you take with ssh -e escape_char.



                You can also specify it as a runtime option; e.g. -o EscapeChar=:



                Thus you may also add it to your client config file ${HOME}/.ssh/config.







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Jan 22 at 14:32

























                answered Dec 4 '14 at 15:19









                Werner HenzeWerner Henze

                3,96031229




                3,96031229






























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