What I think is a DoS attack Post: 302390618

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ip2host

IP2HOST(1)						User Contributed Perl Documentation						IP2HOST(1)

NAME

	 ip2host - 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)

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 <maurice.aubrey+ip2host@gmail.com>

       Based on the logresolve.pl script by Rob Hartill.

COPYRIGHT

       Copyright 1999-2007, Maurice Aubrey <maurice.aubrey+ip2host@gmail.com>.

       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.

SCRIPT CATEGORIES

       Web

perl v5.14.2							    2012-02-15								IP2HOST(1)