SSH, VPN, VNC related Problems

• SSH, VPN, VNC related Problems
  • General Access
  • Jupyterhub
  • Screen
  • Questions and Answers

General Access

Please use these methods to access the servers:

1. Connect using SSH
2. Connect using TeachingHub or ResearchHub
3. Connect using VNC
4. Access from outside the UNI, VPN

Jupyterhub

Currently, there are two JupyterHub instances runnning:

• TeachingHub on SRVX1
• ResearchHub on Jet01

Connect to either

• https://srvx1.img.univie.ac.at from everywhere
• https://jet01.img.univie.ac.at from within the university network.

Screen

Screen is terminal session manager, that allows to start processes and reconnect to these processes after disconnection. This starts a new session

$ screen -S longjob

You can detach from this session with CTRL + A + D and reconnect again with screen -r.

Multiple Sessions can be created and the output saved (-L Option).

Questions and Answers

• Q: How to use ssh-key authentication?
• Q: How to use an ssh-agent?
• Q: How to transfer files between two VPN networks?
• Q: How to connect to Jet, SRVX8, SRVX2?
• Q: How to mount a remote file system on Linux (MAC)?