Unable to connect to a node using ssh

HPC Technical
1

Since today, I cannot connect anymore using ssh as I did until a few hours ago:

cd /home/users/f/ferrigno/scratch/NUSTAR/HMXB
JUPYTER_PORT=1234 sbatch -J CF_2022-11-17 -e $PWD/logs/log_%x_%j.out -o $PWD/logs/log_%x_%j.out /home/users/f/ferrigno/scratch/NUSTAR/HMXB/hmxb-nustar/launch_jupyter.sh
squeue -u ferrigno

	    JOBID PARTITION     NAME     USER ST       TIME  NODES NODELIST(REASON)
          13901788 private-a CF_2022- ferrigno  R       0:42      1 cpu144

On my laptop, I have

cat ~/.ssh/config
host ygg
  HostName login1.yggdrasil.hpc.unige.ch
  User ferrigno
  ForwardX11 yes
  ForwardX11Trusted yes
  DynamicForward 5000

Host cpu144
  HostName cpu144
  User ferrigno
  ProxyJump ygg
  LocalForward 1234 localhost:1234

but since some time I have this error

ssh cpu144

channel 0: open failed: administratively prohibited: open failed
stdio forwarding failed
kex_exchange_identification: Connection closed by remote host

So I cannot open anymore the notebook from my laptop.

Can you help me to restablish the connection?

Thanks

Carlo

2

Hi this should be fixed: Current issues on Baobab and Yggdrasil - #96 by Yann.Sagon

3

Thank you Yann, I confirm, I could login.