SSH tunnel to a certain node: Difference between revisions

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(Use ProxyJump, makes it easier than port forwarding.)
 
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SSH tunnel to a certain node


#1) Submit a slurm job, or an interactive srun job on a node. Taking node201 as an example:
* Submit a slurm job, or start an interactive job on a node.
sinteractive --partition=main --nodelist=node201


#2) In your local OS, set up a port tunnel connection (For example using port 2222):
sinteractive
ssh -L 2222:node201:22 your_id@login.anunna.wur.nl


#3) Config your local ssh config in ~/.ssh/config
* Check on which node this job has landed
Host localhost
squeue -u $USER -l
  HostName localhost
* Add this to your machines ssh config in ~/.ssh/config
  Port 2222
Host node*,gpu*
  User your_id
  ProxyJump login.anunna.wur.nl
  User your_user_id


#4) You could now use your local terminal connecting to node201 directly, by:
* You can now use your local terminal connecting to e.g. node201 directly, by:
ssh your_id@localhost -p 2222


#5) VSCode connection: in the VSCode GUI -> Open a remote Window -> Connect to Host...,
ssh node201
choose "localhost". After a few seconds, the VSCode is connected to the node201.


Please be aware that once the slurm job finishes, the connection will be lost.
* In VSCode :
in the VSCode GUI -> Open a remote Window -> Connect to Host...,type in the nodename. After a few seconds, VSCode is connected to the node.
 
Please be aware that once the slurm job finishes, the connection will be lost and your running processes will be killed.
Besides that, you are limited to the amount of RAM that you requested.

Latest revision as of 16:03, 16 April 2024

  • Submit a slurm job, or start an interactive job on a node.
sinteractive
  • Check on which node this job has landed
squeue -u $USER -l
  • Add this to your machines ssh config in ~/.ssh/config
Host node*,gpu*
  ProxyJump login.anunna.wur.nl
  User your_user_id
  • You can now use your local terminal connecting to e.g. node201 directly, by:
ssh node201
  • In VSCode :
in the VSCode GUI -> Open a remote Window -> Connect to Host...,type in the nodename. After a few seconds, VSCode is connected to the node.

Please be aware that once the slurm job finishes, the connection will be lost and your running processes will be killed. Besides that, you are limited to the amount of RAM that you requested.

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