Connecting to RCS HPC Systems

RCS maintains and operates various systems and clusters which can be connected to from within the University of Calgary campus network or via the University of Calgary IT General VPN.

Cluster	Hostname	Access	Accessible by
ARC	arc.ucalgary.ca	SSH	All ARC users
ARC DTN	arc-dtn.ucalgary.ca	SSH	All ARC users
TALC	talc.ucalgary.ca	SSH	All TALC users
MARC	marc.ucalgary.ca	Citrix	MARC users

Connecting to the University VPN

All connections made to our infrastructure must be made from the University of Calgary campus network or via the University of Calgary IT General VPN.

For additional help, refer to:

• The General VPN knowledge base article for help on setting up your General VPN connection on your computer.
• The VPN software knowledge base article for information on where to obtain FortiClient.

After connecting to the General VPN, you will then be able to connect via SSH or Citrix to our compute infrastructure.

Connecting with SSH

Secure Shell (SSH) is an encrypted network protocol that allows secure communication between your computer and a server.

On Linux or MacOS computers, SSH is most likely installed and can be used by opening a terminal and running:

ssh username@arc.ucalgary.ca

For work requiring X11 forwarding, pass in the -X flag.

ssh -X username@arc.ucalgary.ca

On Windows, there are various clients that can be used to connect to our cluster including:

• PuTTY
• MobaXterm