Simple console-based bandwidth monitoring utilities

A co-worker today introduced me to ‘iftop’ which is an incredibly handy utility for  monitoring current bandwidth utilization through an interface.  Its sortof like a simple, command-line version of ntop. It is available in most Debian repositories, and in the RPMForge repositry if you use RHEL/CentOS.  More information on its homepage at http://www.ex-parrot.com/~pdw/iftop/

Also, another handy bandwidth monitoring program to run on your server is vnstat.  It runs via cron every 5 minutes and  can provide some simple historic bandwidth usage graphs.  I didn’t see any packages for vnstat, but its the simplest build I’ve ever seen.  Just download it and run ‘make && make install’  More information at http://humdi.net/vnstat/

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