Every user with a COR@L account can access the machines listed here using her/his username and password. However, if you are outside Lehigh’s network, then you need to connect to Lehigh VPN Concentrator or use the Lehigh Linux Jumphost - ssh.lehigh.edu. Please reference the Lehigh VPN Wiki page for guidance. Once you are on the VPN or connected to the Jumphost you can connect to cluster directly from your host (vpn) or jumphost. The only host you should be connecting to for cluster work is polyps.ie.lehigh.edu
If you are a Linux user, then logging into COR@L is straightforward. The following command uses ssh, which is typically available on standard Linux distributions:
Your COR@L username and password are the same for all machines. COR@L uses NIS to manage passwords, so passwords can be at most 8 characters long. Any extra characters will be ignored. If you wish to change your password, then do not use the passwd command. Use yppasswd instead.
If you are using Windows and want to sign into a COR@L machine, then you need to install an ssh client first. There are several free software options. You can check Wikipedia for more information about your choices. A common free ssh client is PuTTY, which can be downloaded here. This ssh client is easy to use and it is well documented here. Another commonly used client is MobaXterm.