ZedMon is a NetWare server monitoring tool that provides network administrators with at-a-glance information on user activity, network address, login time and protocol preference, as well as server utilization and open file information. The application is installed on a management workstation - nothing needs to be installed on the server.

LightSquid is a LIGHT and FAST, web based squid proxy traffic analyser . analize access.log and generate per-user & per group report.

A Windows network admin utility for remotely detecting the Task Scheduler
vulnerability on Microsoft Windows 2000 and Windows XP systems.
NetSchedScan allows you to scan multiple IP ranges for the Task Scheduler
buffer overrun.

Flexible web-based firewall log analyzer, supporting netfilter and ipfilter, ipfw, ipchains and Windows XP system logs, and mysql or postgresql ulogd database logs using the iptables ULOG target of netfilter.

A Free Hosting Control Panel for Linux intended to replace the need for expensive software such as Ensim, CPanel & Plesk. It uses Apache, Postfix, MySQL & other projects like AWStats and phpMyAdmin. The GUI is coded in PHP, and the backend in Perl & Bash. (RPM-package)

NFSwatch lets you monitor NFS requests to any given machine, or the entire local network. It mostly monitors NFS client traffic (NFS requests); it also monitors the NFS reply traffic from a server in order to measure the response time for each RPC.

cgi script that gives a lot of detailed info about your host system, like paths, used/free space, server load, available RAM, and much more!

A utility to automate telnet sessions.

phpRADmin is a web tool written in PHP to allow configuration, administration and provisioning of RADIUS server (FreeRADIUS), clients (NAS, AP, etc) and users (PPP, PPPoE, EAP, etc) with MySQL as backend.

DenyHosts is a python program that automatically blocks SSH attacks by adding entries to /etc/hosts.deny. DenyHosts will also inform Linux administrators about offending hosts, attacked users and suspicious logins.

Snazzy Backup is a backup utility that allows you to pick files and folders to backup and creates a zip file containing those files. Nice GUI. Save and load settings. Specify compression ratio, the thread priority of the backup process, filters, more

User-space IPsec tools for various IPsec implementations. A port of KAME's libipsec, setkey, and racoon to the Linux OS. Also works on various BSD systems.

Webmin is a web-based interface for system administration for Unix. Using any browser that supports tables and forms (and Java for the File Manager module), you can setup user accounts, Apache, DNS, file sharing and so on. (.rpm-Package)

Cancerbero (the watchdog of the ports) is a portscan engine based in nmap. It will scan the hosts of a defined net once in every configured interval and it will store the results in a mysql database. It comes with a Web interface to access the scan info.

Zeppoo allows you to detect rootkits on i386 architecture under Linux, by using /dev/kmem and /dev/mem. Moreover it can also detect hidden tasks, connections, corrupted symbols, system calls... and so many other things.

Bandwidth Management Tools is a total bandwidth management solution for Linux and can be used for firewalling, traffic graphing, and shaping. It is not based on any currently-available bandwidth management software some ver advanced features.

OSSIM aims to unify network monitoring, security, correlation and qualification in one single tool. Integrating Snort, Acid/Base, MRTG, NTOP, Nagios, NMAP, Nessus and RRDTool we want the user to have full control over every network or security aspect.

phpSysInfo is a PHP script that displays information about the host being accessed. It will displays things like Uptime, CPU, Memory, SCSI, IDE, PCI, Ethernet, Floppy, and Video Information.