Networking

• nettop
  This program has a top like display which shows the different packet types. Possibly useful to determine the nature of packets on a given network and how much bandwidth they are using. ...
  
• BBStatus
  A tool for IP accounting/filtering and SNMP and ICMP monitoring. ...
  
• Bandwidth alarm
  bwalarm lets you know by SMS or email if the bandwidth usage on your Unix machine goes above "normal". It's configured very simply, and can monitor either an iptables chain or interface counter, pack...
  
• Cisco IP Accounting Fetcher
  Cisco IP Accounting Fetcher is a set of Perl scripts that allows you to fetch IP accounting data from Cisco routers. ...
  
• smbsniffer
  smbsniffer is an NMB sniffer. ...
  
• if_rate
  if_rate measures and prints some statistics about the rate of traffic through network interfaces (like iptraf). ...
  
• wipl
  wipl is a comparatively well-tested and well-documented collection of programs which can be used to monitor network traffic. ...
  
• NISCA
  NISCA (Network Interface Statistics Collection Agent) is a more flexible PHP4-based MRTG replacement. It supports both SNMP and reading localhost's /proc/net/dev device file directly for statistics g...
  
• macwatch
  macwatch is a small daemon that counts in- and outbytes from a given MAC-address and stores the result in a file for use with MRTG. It will write the file every 5 minutes by default, and uses libpcap...
  
• nPulse
  nPULSE is a Web-based network monitoring package for Unix-like operating systems. It can quickly monitor up to thousands of sites/devices at a time on multiple ports. nPULSE is written in Perl and co...
  
• Sipp
  Sipp is a performance testing tool for the SIP protocol. ...
  
• RRDmonitor
  RRDmonitor is designed to monitor a Linux system with rrdtools. It automatically generates RRDtool graphs from your CPU, memory, swap, users logged, traffic. ...
  
• SVtun
  SVtun is a simple but powerful distributed sniffer, based on virtual tunnels. It extends the basic functionality of vtun to support a new interface type "sniff". ...
  
• phpMyVisites
  phpMyVisites is a Web traffic analyzer with very detailed reports and advanced graphics. ...
  
• netacct-mysql
  Netacct-mysql is modified version of traffic accounting daemon net-acct which stores collected data in MySQL. It supports writing accounting information in a single line in MySQL per day for every IP...
  
• ArpMonitor
  ArpMonitor will log any ARP request to and from your machine or network. It's, useful for monitoring switches or bridges. ...
  
• RRDBrowse
  RRDBrowse is a poller daemon, templater, and Web interface for rrdtool. It works with small .nfo files which hold router information and connection details, colors, min/max bandwidth settings, etc. I...
  
• Cisco Monitoring Tool
  Cimon is Perl program wich monitors the load (memory and CPU) on Cisco routers using SNMP, and generates graphics with statistics using rrdtool. It's a good source for information about your router's...
  
• MRTS
  MRTG RRDtool Total Statistics is a PHP script that uses MRTG and RRDtool to sum up traffic monthly and yearly. ...
  
• portmon
  Portmon is a daemon that is able to monitor network services and send notification in the event that a server goes down. Portmon was designed to be able to monitor a large number of servers/workstati...
  
• iptotal
  iptotal is an *extremly* simple network monitor tool that measures the number of IP packages traveling to/from a specific network interface. ...
  
• phpsysinfo
  phpSysInfo is a PHP script that displays information about the host being accessed. ...
  
• Network Traffic Analyzer
  Network Traffic Analyzer analyzes the network traffic on multiple network devices and creates HTML statistics with some network usage graphs. ...
  
• bandwidthd
  bandwidthd tracks usage of TCP/IP network subnets and builds HTML files with graphs to display network utilization. Charts are built by individual IP to show their utilization over 2, 8, 45, and 400 ...
  
• ifstat
  ifstat is a tool to report network interface bandwith just like vmstat/iostat do for other system counters. It can monitor local interfaces by polling the kernel counters, or remote hosts' interfaces...