Manual: logresolve

LOGRESOLVE(1)						 logresolve					       LOGRESOLVE(1)

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 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 sepa‐
       rated 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.

Apache HTTP Server					 2018-07-06					       LOGRESOLVE(1)