MRTG

What MRTG is

MRTG is a free, self-hosted tool that monitors traffic load on network links and produces HTML pages with PNG graphs. It reads router traffic counters through SNMP, and can also monitor other SNMP variables or data collected by an external program. Its views cover daily, seven-day, five-week and twelve-month periods. A consolidated log retains relevant traffic data for two years without growing over time. Documentation says MRTG can monitor 200 or more network links from a halfway decent UNIX machine. It includes a Perl SNMP implementation and supports SNMPv2c 64-bit counters. Automatic configuration and setup tools are included, and the appearance of generated pages can be configured. Built-in hooks support use of RRDtool. MRTG is released under the GNU General Public License and dates to 1994, with headquarters listed in Olten, Switzerland. The maker lists user, announcement and developer mailing lists, along with Usenet and IRC discussion channels. Listed platforms include Linux, Windows, web and self-hosted use; the Windows installation guide requires a current copy of Perl.