Network Security Toolkit (NST) is a bootable ISO image (Live CD) based on Fedora Core 5 providing easy access to best-of-breed Open Source Network Security Applications and should run on most x86 platforms. NST can also be used for crash recovery.

smartmontools contains utility programs (smartctl, smartd) to control/monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (S.M.A.R.T.) built into most modern ATA and SCSI disks. It is derived from smartsuite.

Conky is an advanced, highly configurable system monitor for X based on torsmo

PHP, Perl and MySql based web interface for the Nessus security scanner and Nmap port scanner. The system presents scan results via a Email notification, a HTML interface, or exported to a PDF file.

Monitor network bandwidth (C#.NET 2k/XP+). Desktop and Systray graph. Configurable connection speed, update interval, color, transparency. Monitor any or all network interfaces. Ping/Trace/UPnP utilities. Email notifier (POP/IMAP). Requires .NET 2.0.