logresolve - Resolve IP-addresses to hostnames in Apache
logresolve is a post-processing program to
resolve IP-addresses 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.
logresolve [ -s
filename ] [ -c ] <
access_log > access_log.new
- Specifies a filename to record statistics.
- 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