Argus is a system and network monitoring application. It will monitor nearly anything you ask it
to monitor (TCP + UDP applications, IP connectivity, SNMP OIDS, Programs, Databases, etc).
AWStats is a free powerful and featureful tool that generates advanced web, ftp or mail server
statistics, graphically.
BackupPC is a high-performance, enterprise-grade system for backing up Linux and WinXX PCs and
laptops to a server's disk. BackupPC is highly configurable and easy to install and maintain.
The world's most popular network protocol analyzer. Ethereal is used by network professionals
around the world for troubleshooting, analysis, software and protocol development, and
education.
Firewall Builder is multi-platform firewall configuration and management tool. It consists of a GUI
and set of policy compilers for various firewall platforms. Firewall Builder uses object-oriented
approach, it helps administrator maintain a database of network objects and allows policy editing
using simple drag-and-drop operations. Firewall Builder currently supports iptables, ipfilter,
OpenBSD PF and Cisco PIX.
What is Nagios ? An open source host, service and network monitoring program.
Ntop is a network traffic probe that shows the network usage, similar to what the popular top
Unix command does. ntop is based on libpcap and it has been written in a portable way in order
to virtually run on every Unix platform and on Win32 as well.
The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system.
Their efforts emphasize portability, standardization, correctness, proactive security and
integrated cryptography. OpenBSD supports binary emulation of most programs from SVR4 (Solaris),
FreeBSD, Linux, BSD/OS, SunOS and HP-UX.
OpenVPN is a full-featured SSL VPN solution which can accomodate a wide range of configurations,
including home/office/campus telecommuting, secure branch office linking, and enterprise-scale
remote access solutions with load balancing, failover, and fine-grained access-controls.
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