K-Arp-Ski
- Network packet sniffer with a gtk interface. [Project not currently active.]
- http://mojo.calyx.net/~btx/karpski.html

LANdb
- Provides network managers with a means of cataloging network connections.
- http://landb.sourceforge.net/

Intelligent Systems Monitoring for Linux, Unix and Windows NT/2000
- Monitor your network of Linux, Unix and Windows 2000/NT from a single console and see the state of all your systems from one convenient place. You can quickly and easily develop your own site-specific knowledge bases to meet your local requirements.
- http://www.sentinel3g.com/

Zabbix
- A software that monitors your servers and applications. Zabbix can be used for logging, monitoring, capacity planning, availability and performance measurement, and providing the latest information to a helpdesk.
- http://zabbix.sourceforge.net/

Ethereal Network Analyzer
- Ethereal is a network protocol analyzer for Unix and Windows. It has an extensive list of features.
- http://www.ethereal.com

Netenv
- Using a laptop in different network environments.
- http://netenv.sourceforge.net/

Linux Scalability
- Aims to improve the scalability and robustness of Linux to support greater network server workloads more reliably.
- http://www.citi.umich.edu/projects/linux-scalability/index.html

USAGI Project
- Linux IPv6 Development Project.
- http://www.linux-ipv6.org/

StreamModule homepage
- Homepage of the StreamModule project. A library designed to simplify putting together programs that communicate over a network. Eschews threading and RPC style request response design.
- http://www.omnifarious.org/StrMod

libcw: C++ client/server application library
- A C++ library for heavy duty networking applications. For Objects Management, Events, Signals, Timing, and Asynchrone Stream Devices.
- http://libcw.sourceforge.net/

Configuring Routing Protocols Under Linux
- Understanding RIP, SPF, OSPF, and EGP.
- http://www.byte.com/column/BYT19991027S0001

Linux NIS(YP) Server and Tools
- The Network Information Service (NIS) provides a simple network lookup service consisting of databases and processes. It was formerly known as Sun Yellow Pages (YP).
- http://www.suse.de/~kukuk/

Performance Monitoring for Linux
- A June 1999 Slashdot discussion about Performance Monitoring .
- http://slashdot.org/askslashdot/99/06/14/225203.shtml

Linux Performance Tuning
- Linux performance tuning resource site.
- http://linuxperf.nl.linux.org/

NOCOL SNIPS Home Page
- NOCOL is system and network monitoring software.
- http://www.netplex-tech.com/software/nocol/

Eznet
- Software that simplifies PPP setup for Linux.
- http://www.hwaci.com/sw/eznet/

Cheops Network User Interface
- Cheops is an Open Source Network User Interface. It is designed to be the network equivalent of a swiss-army knife, unifying your network utilities. Cheops does for the network what a file manager does for your filesystem.
- http://www.marko.net/cheops/

NetSaint Network Monitor
- An active network monitor designed to run under Linux. NetSaint includes plugins to monitor several types of services (ftp, http, tcp port, and disk space). Contacts can be notified by email or pager when a problem occurs and is resolved.
- http://netsaint.org/

NetLeds applet
- A gnome applet that displays lights (RX, TX and COL) from a network device.
- http://netleds.port5.com/

Sysmon Home Page
- Sysmon is a network monitoring tool designed to provide high performance and accurate network monitoring. Currently supported protocols include SMTP, IMAP, HTTP, TCP, UDP, Radius, NNTP, and PING tests
- http://puck.nether.net/sysmon/