logresolve(8)
NAME
logresolve - Resolve IP-addresses to hostnames in Apache
log files
SYNOPSIS
logresolve [ -s filename ] [ -c ] < access_log > access_log.new
SUMMARY
logresolve is a post-processing program to resolve IPaddresses in Apache's access logfiles. To minimize impact
on your nameserver, logresolve has its very own internal
hash-table cache. This means that each IP number will only
be looked up the first time it is found in the log file.
Takes an Apache log file on standard input. The IP
addresses must be the first thing on each line and must be
seperated from the remainder of the line by a space.
OPTIONS
- -s filename
- Specifies a filename to record statistics.
- -c This causes logresolve to apply some DNS
- checks: after finding the hostname from the
IP address, it looks up the IP addresses for
the hostname and checks that one of these
matches the original address.