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SSH tunnelling: Difference between revisions
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SSH tunnelling is a method which in the context of Compute Canada allows a user's computer to connect to a compute node on a cluster through an encrypted tunnel that is routed via the login node of this cluster. This technique allows graphical output of applications like a [[Jupyter | Jupyter notebook]] or [[Visualization|visualization software]] to be displayed transparently on the user's local workstation even while they are running on a compute node of a cluster. | SSH tunnelling is a method which in the context of Compute Canada allows a user's computer to connect to a compute node on a cluster through an encrypted tunnel that is routed via the login node of this cluster. This technique allows graphical output of applications like a [[Jupyter | Jupyter notebook]] or [[Visualization|visualization software]] to be displayed transparently on the user's local workstation even while they are running on a compute node of a cluster. | ||
== Example for a job == | |||
<pre> | |||
# License | |||
export LM_PROJECT= | |||
export CDLMD_LICENSE_FILE=1999@localhost | |||
# Start the SSH tunnel | |||
ssh -n -N -L 1999:flex.cd-adapco.com:1999 gra-login1 & | |||
SSH1=$! | |||
ssh -n -N -L 2099:flex.cd-adapco.com:2099 gra-login1 & | |||
SSH2=$! | |||
# Launch the code | |||
<whatever> | |||
# Stop the SSH tunnel | |||
kill -9 $SSH1 | |||
kill -9 $SSH2 | |||
</pre> | |||
== From Linux or MacOS X == | == From Linux or MacOS X == | ||