Networking

• TrafficDisplay
  TrafDisp is a network traffic measurement package. It allows you to monitor the amount of incoming/outgoing KBps on a selected network interface(s) from at least one machine. It allows a network admi...
  
• Pipe Viewer
  pv (Pipe Viewer) is a terminal-based tool for monitoring the progress of data through a pipeline. It can be inserted into any normal pipeline between two processes to give a visual indication of how ...
  
• Nettimer: A Bandwidth Measurement Tool
  Nettimer: A Bandwidth Measurement Tool is a program to do end-to-end network performance measurement. It can listen passively to existing network traffic, or actively probe the network. ...
  
• TraffAcct
  TraffAcct is a platform for gathering network traffic data for use in link volume calculations or billing. ...
  
• NAT monitor
  NAT Monitor is a tool to monitor hosts' bandwidth usage in a Linux-NAT network. A daemon collects data and clients display them (currently a GTK app with graph and a text version). It detects new hos...
  
• netwag
  Netwag is a graphical frontend to the netwox toolbox. ...
  
• WiredView
  WiredView is a network traffic monitor which displays its information in a 3D format of questionable usefulness. ...
  
• XCounter
  XCounter is an X11-based traffic monitoring program for Linux that displays information about IP traffic on a selected interface. ...
  
• mony
  mony is an ICMP monitoring tool designed to be very flexible, scalable, and fast. ...
  
• grafist
  Grafist is a bandwidth utilization viewer. It gets the bandwidth utilization information for network interfaces from the /proc/net/dev file in 15-second periods, and stores it in four data files. ...
  
• NetworkControl
  NetworkControl is a utility to control and monitor network interfaces, including wireless ones (for which you see a signal strength meter, as shown). ...
  
• NetSplitter
  NetSplitter is a ( user-level ) network load-balance. It acts like a transparent-proxy and will balance ( output ) TCP connections on multiples links. ...
  
• watchman pinger
  watchman is yet another ping tool that monitors network hosts and aims to be as simple as possible. It runs as a daemon. ...
  
• Pen
  This is pen, a load balancer for "simple" tcp based protocols such as http or smtp. It allows several servers to appear as one to the outside and automatically detects servers that are down and distr...
  
• Shepherd
  Shepherd daemon uses SNMP to periodically get and log general information from remote SNMP-managed devices. ...
  
• ApacheTop
  A curses-based top-like display for Apache information, including requests per second, bytes per second, most popular URLs, etc. ...
  
• Alarm Pinger
  Alarm Pinger (apinger) is a little tool which monitors various IP devices by simple ICMP echo requests. Unlike most Perl or shell script tools, it does not spawn processes or use much CPU time, and i...
  
• bbnfc
  Useful for debugging netflow exports as produced by Cisco, Juniper, etc. routers. This simple program sits on a user-specified UDP port and displays to stdout all netflow exports that are sent to the...
  
• Network Weathermap Creator
  This project is a network weather map creator and network traffic statistics collector. It uses SNMP to collect data from various network devices and stores them in a database. ...
  
• DNS Hijacker
  DNS Hijacker is a libnet/libpcap based DNS sniffer/spoofer. A versatile tool, it supports tcpdump-style filters that allow you to specifically target victims. DNS answers are forged based on entries ...
  
• Linksys Syslog
  Linksys Syslog captures the snmp trap messages from a Linksys router and saves these to syslog. This daemon is very small and robust. ...
  
• tcp wrappers
  The tcp_wrappers package allows you to monitor and filter incoming requests for the SYSTAT, FINGER, FTP, TELNET, RLOGIN, RSH, EXEC, TFTP, TALK, and other network services. It provides tiny daemon wra...
  
• ConnMon
  Connection Monitor is a connection and bandwidth monitoring program with console (ncurses) and X (GTK) based user interfaces. It displays a list of open TCP and UDP connections with transfer rate (in...
  
• iam - iptables accounting monster
  iptables accounting monster (iam) is a traffic reporting tool for iptables. Currently it can generate daily reports in plain text and HTML format. It can also create summaries (month or year) of thes...
  
• Bronc
  Bronc, when combined with RRDtool, is a replacement for MRTG. Bronc provides on-the-fly graph generation, automated SNMP data collection, and Mason-based templating. ...