Networking

• tcpflow
  tcpflow is a program that captures data transmitted as part of TCP connections, and stores the data in a way that is convenient for protocol analysis or debugging. ...
  
• Loggerithim
  Loggerithim is an extensible monitoring and remote management package. It allows you to monitor your systems, proactively spot problems, remotely manage, perform post-mortems, throw alerts when bad t...
  
• Brcontrol
  Brcontrol is a set of patches to allow some interaction between a IDS and a firewall (currently snort and linux netfilter) It can help in the creation of aggresive honeypots or other advanced firewal...
  
• ipcalc
  ipcalc takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. ...
  
• XPortScan
  XPortScan is a multi-threaded, cross-platform, GUI port scanner. It is modular so that new features are easy to integrate, and even completely changing the GUI is easy. ...
  
• Conserver
  Conserver provides remote access to serial port consoles and logs all data to a central host. ...
  
• AutoDNS
  AutoDNS is an easy way to enable configuration of secondary DNS via email. It allows addition, deletion and listing of secondaried domains. It's used by the author in conjuction with BIND but with mi...
  
• knocker
  Knocker is a simple, versatile, and easy-to-use TCP security port scanner written in C, using threads. It is able to analyze hosts and the network services which are running on them. Knocker it is av...
  
• Auto-Update
  Distributes updates and patches to all your computers. ...
  
• dyndnsupdate
  dyndnsupdate is a tool for keeping dynamic DNS hosts up to date. ...
  
• JBoss
  JBoss is an Open Source, standards-compliant, Enterprise JavaBeans application server implemented in pure Java. ...
  
• Cyrus IMAP Server
  The Cyrus IMAP server is generally intended to be run on sealed systems, where normal users are not permitted to log in. ...
  
• BrutalCopy
  Brutalcopy transmits a file using UDP connection at a preprogrammed fixed data rate without flow control and with packet retransmission. It is not affected by packet loss and is intended for use on l...
  
• WANPIPE
  WANPIPE S-series is a family of intelligent multi-protocol WAN and ADSL adapters that support data transfer rates up to 8Mbps. All WAN protocols supported by WANPIPE are implemented in firmware and r...
  
• Network Simulator
  Ns is a discrete event simulator targeted at networking research. It provides substantial support for simulation of TCP, routing, and multicast protocols over wired and wireless (local and satellite)...
  
• Sniff
  Sniff formats hex packets from the tcpdump program and converts them to ASCII to make them easier to read and understand. Its features include colored console output, CSV file saving, and fully custo...
  
• KSubnet
  KSubnet is a small KDE tool that calculates subnet addresses. It handles subnet addresses, masks, and IP ranges. ...
  
• fping
  fping is a ping-like program which uses the Internet Control Message Protocol (ICMP) echo request to determine if a target host is responding. fping differs from ping in a way that you can specify an...
  
• LMS
  "LMS" (LAN Management System) is a package of applications in PHP, Perl and C for managing LANs with support of MySQL or PostgreSQL database servers. The main goal is to get the best service of users...
  
• Cubehub Tunnel
  Cubehub is a simple UDP over TCP tunnel application written in Java. It is designed so that people behind a firewall can connect through a TCP connection to play Quake and other UDP-based games. ...
  
• unix2tcp
  Unix2TCP is able to listen on a local UNIX socket and tunnel any incoming connections and traffic to a (remote) IP address/port ...
  
• Zebra
  Zebra is a multi-server routing protocol that provides TCP/IP based routing protocols. It's meant to be used as a route server and router reflector. Not just a toolkit, it provides full routing power...
  
• 6tunnel
  6tunnel allows you to use services provided by IPv6 hosts with IPv4-only applications and vice-versa. It can bind to any of your IPv4 (default) or IPv6 addresses and forward all data to IPv4 or IPv6 ...
  
• tcping
  Like 'ping' but on TCP-level. ...
  
• Lcrzoex
  Lcrzoex is a toolbox for network administrators and network hackers which contains over 400 utilities to test an Ethernet/IP network. Each one can be compiled alone and modified to match your needs. ...