A network security analysis and monitoring toolkit Linux distribution.
Network Security Toolkit (NST) is a bootable ISO image (Live USB Flash Drive) based on Fedora 42 providing easy access to best-of-breed Open Source Network Security Applications and should run on most x86_64 systems.
The main intent of developing this toolkit was to provide the security professional and network administrator with a comprehensive set of Open Source Network Security Tools. The majority of tools published in the article: Top 125 Security Tools by INSECURE.ORG are available...
Perl-based syslog watcher that matches certain login failures (SSH, FTP, POP3) and can dynamically block and email an alert, helping to monitor and manage hosting servers. NOTE: Although no recent updates, I'm still able/willing to update this code.