man ip2host (1): Resolves IPs to hostnames in web server logs

SYNOPSIS

ip2host [OPTIONS] [cache_file] < infile > outfile
infile - Web server log file.
outfile - Same as input file, but with IPs resolved to hostnames.
Options:
--children=... Number of child processes to spawn (default: 40)
--timeout=... Seconds to wait on DNS response (default: 20)
--buffer=... Maximum number of log lines to keep in
memory (default: 50000)
--flush=... Number of lines to process before flushing
output buffer (default: 500)
--cache=... Filename to use as disk cache (default: none)
--ttl=... Number of seconds before IPs cached on disk are expired
(default: 604800 - One week)
--ipv6 Match IPv6 addresses too
--regex=... Perl regular expression to match IP

DESCRIPTION

This is a faster, drop-in replacement for the logresolve utility distributed with the Apache web server.

It's been reported to work under Linux, FreeBSD, Solaris, Tru64, and IRIX.

AUTHOR

Maurice Aubrey <[email protected]>

Based on the logresolve.pl script by Rob Hartill.

COPYRIGHT

This module is free software; you may redistribute it and/or modify it under the same terms as Perl itself.

README

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.

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