Starting on January 1st, 2022, direct Secure Shell (SSH) access to AHPCC login nodes will only be allowed from:

• UAF campus network
• via UAF Virtual Private Network (https://its.uark.edu/network-access/vpn/index.php) connection
• Other research organization networks, with membership determined by the Arkansas Research and Education Optical Network (https://www.areon.net/)
  To accommodate users logging in from other locations a new access portal, hpc-portal.uark.edu, is available for any user holding an active AHPCC account. This service, upon successful login, registers the source IP address of user's client machine and adds that IP to the list of allowed IP's allowed to pass network traffic to the AHPCC login nodes. To use the service ssh into port 2022 of hpc-portal.uark.edu.

[pawel@frontdesk ~]$ ssh testuser@hpc-portal.uark.edu -p 2022 Password: Last login: Tue Dec 7 16:58:10 2021 from 75.205.5.185 Arkansas High Performance Computing Center off-campus access portal =========================================================================== https://hpc-portal.uark.edu ← Open Ondemand Web Portal ssh hpc-portal.uark.edu ← Standard AHPCC login Access allowed from 75.205.5.185 until Wed Dec 8 06:02:43 CST 2021 =========================================================================== Connection to hpc-portal.uark.edu closed. [pawel@frontdesk ~]$