Forwarding Variable with SSH

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Did you know that you can easily forward a variable (or secret) via SSH … ?

This Variable is just available if you’re logged in and never stored in any configfile or backup. This can be a real advantage …

Sending Host


  SendEnv        _secret

Receiving Host


AcceptEnv               _secret

restart sshd


user@myhost ~# export _secret=topsecret99
user@myhost ~# ssh

user@trustedhost ~# set |grep _secret

here we are …

sha256: d370fa32b9dad2065ce6d5140ff19fee72501b893573036090588cec2c66de02