http://github.com/mla/ip2host
DESCRIPTION Resolves IPs to hostnames in web server logs. This is a faster, drop-in replacement for the logresolve utility distributed with the Apache web server. CHANGELOG ip2host 1.11 * Silence warnings thanks to Andrew McNaughton and Gunnar Wolf http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=563129