Monitoring HPC Systems Against Compromised SSH
Submitted by lev_lafayette on Thu, 10/15/2020 - 13:00Secure Shell is a very well established cryptographic network protocol for accessing operating network services and is the typical way to access high-performance computing (HPC) systems in preference to various unsecured remote shell protocols, such as rlogin, telnet, and ftp. As with any security protocol it has undergone several changes to improve the strength of the program, most notably the improvement to SSH-2 which incorporated Diffie-Hellman key exchange. The security advantages of SSH are sufficient that there are strong arguments that computing users should use SSH "everywhere".