Linux and UNIX Man Pages

Test Your Knowledge in Computers #573
Difficulty: Medium
PHP does not allow you to use arrays as both function parameters and as return types.
True or False?
Linux & Unix Commands - Search Man Pages

ip2host(1) [debian man page]

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

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 <> Based on the script by Rob Hartill. COPYRIGHT
Copyright 1999-2007, Maurice Aubrey <>. 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)

Check Out this Related Man Page

BP_BIOFETCH_GENBANK_PROXY(1p)				User Contributed Perl Documentation			     BP_BIOFETCH_GENBANK_PROXY(1p)

NAME - Caching BioFetch-compatible web proxy for GenBank SYNOPSIS
Install in cgi-bin directory of a Web server. Stand back. DESCRIPTION
This CGI script acts as the server side of the BioFetch protocol as described in It provides two database access services, one for data source "genbank" (nucleotide entries) and the other for data source "genpep" (protein entries). This script works by forwarding its requests to NCBI's eutils script, which lives at It then reformats the output according to the BioFetch format so the sequences can be processed and returned by the Bio::DB::BioFetch module. Returned entries are temporarily cached on the Web server's file system, allowing frequently-accessed entries to be retrieved without another round trip to NCBI. INSTALLATION You must have the following installed in order to run this script: 1) perl 2) the perl modules LWP and Cache::FileCache 3) a web server (Apache recommended) To install this script, copy it into the web server's cgi-bin directory. You might want to shorten its name; "dbfetch" is recommended. There are several constants located at the top of the script that you may want to adjust. These are: CACHE_LOCATION This is the location on the filesystem where the cached files will be located. The default is /usr/tmp/dbfetch_cache. MAX_SIZE This is the maximum size that the cache can grow to. When the cache exceeds this size older entries will be deleted automatically. The default setting is 100,000,000 bytes (100 MB). EXPIRATION Entries that haven't been accessed in this length of time will be removed from the cache. The default is 1 week. PURGE This constant specifies how often the cache will be purged for older entries. The default is 1 hour. TESTING
To see if this script is performing as expected, you may test it with this script: use Bio::DB::BioFetch; my $db = Bio::DB::BioFetch->new(-baseaddress=>'http://localhost/cgi-bin/dbfetch', -format =>'genbank', -db =>'genbank'); my $seq = $db->get_Seq_by_id('DDU63596'); print $seq->seq," "; This should print out a DNA sequence. SEE ALSO
Bio::DB::BioFetch, Bio::DB::Registry AUTHOR
Lincoln Stein, <> Copyright (c) 2003 Cold Spring Harbor Laboratory This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See DISCLAIMER.txt for disclaimers of warranty. perl v5.14.2 2012-03-02 BP_BIOFETCH_GENBANK_PROXY(1p)