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Sys::Hostname::Long(3)               User Contributed Perl Documentation              Sys::Hostname::Long(3)



NAME
       Sys::Hostname::Long - Try every conceivable way to get full hostname

SYNOPSIS
           use Sys::Hostname::Long;
           $host_long = hostname_long;

DESCRIPTION
       How to get the host full name in perl on multiple operating systems (mac, windows, unix* etc)

DISCUSSION
       This is the SECOND release of this code. It has an improved set of tests and improved interfaces -but interfacesbut
       but it is still often failing to get a full host name.  This of course is the reason I wrote the
       module, it is difficult to get full host names accurately on each system. On some systems (eg: Linux)
       it is dependent on the order of the entries in /etc/hosts.

       To make it easier to test I have testall.pl to generate an output list of all methods. Thus even if
       the logic is incorrect, it may be possible to get the full name.

       Attempt via many methods to get the systems full name. The Sys::Hostname class is the best and
       standard way to get the system hostname. However it is missing the long hostname.

       Special thanks to David Sundstrom and Greg Bacon for the original Sys::Hostname

SUPPORT
       This is the original list of platforms tested.

               MacOS           Macintosh Classic               OK
               Win32           MS Windows (95,98,nt,2000...)
                               98                              OK
               MacOS X         Macintosh 10                    OK
                               (other darwin)                  Probably OK (not tested)
               Linux           Linux UNIX OS                   OK
                               Sparc                           OK
               HPUX            H.P. Unix 10?                   Not Tested
               Solaris         SUN Solaris 7?                  OK (now)
               Irix            SGI Irix 5?                     Not Tested
               FreeBSD         FreeBSD                         OK

       A new list has now been compiled of all the operating systems so that I can individually keep
       informaiton on their success.

       THIS IS IN NEED OF AN UPDATE AFTER NEXT RELEASE.

       Acorn - Not yet tested
       AIX - Not yet tested
       Amiga - Not yet tested
       Atari - Not yet tested
       AtheOS - Not yet tested
       BeOS - Not yet tested
       BSD - Not yet tested
       BSD/OS - Not yet tested
       Compaq - Not yet tested
       Cygwin - Not yet tested
       Concurrent - Not yet tested
       DG/UX - Not yet tested
       Digital - Not yet tested
       DEC OSF/1 - Not yet tested
       Digital UNIX - Not yet tested
       DYNIX/ptx - Not yet tested
       EPOC - Not yet tested
       FreeBSD - Not yet tested
       Fujitsu-Siemens - Not yet tested
       Guardian - Not yet tested
       HP - Not yet tested
       HP-UX - Not yet tested
       IBM - Not yet tested
       IRIX - Not yet tested - 3rd hand information might be ok.
       Japanese - Not yet tested
       JPerl - Not yet tested
       Linux
           Debian - Not yet tested
           Gentoo - Not yet tested
           Mandrake - Not yet tested
           Red Hat- Not yet tested
           Slackware - Not yet tested
           SuSe - Not yet tested
           Yellowdog - Not yet tested
       LynxOS - Not yet tested
       Mac OS - Not yet tested
       Mac OS X - OK 20040315 (v1.1)
       MachTen - Not yet tested
       Minix - Not yet tested
       MinGW - Not yet tested
       MiNT - Not yet tested
       MPE/iX - Not yet tested
       MS-DOS - Not yet tested
       MVS - Not yet tested
       NetBSD - Not yet tested
       NetWare - Not yet tested
       NEWS-OS - Not yet tested
       NextStep - Not yet tested
       Novell - Not yet tested
       NonStop - Not yet tested
       NonStop-UX - Not yet tested
       OpenBSD - Not yet tested
       ODT - Not yet tested
       OpenVMS - Not yet tested
       Open UNIX - Not yet tested
       OS/2 - Not yet tested
       OS/390 - Not yet tested
       OS/400 - Not yet tested
       OSF/1 - Not yet tested
       OSR - Not yet tested
       Plan 9 - Not yet tested
       Pocket PC - Not yet tested
       PowerMAX - Not yet tested
       Psion - Not yet tested
       QNX
           4 - Not yet tested
           6 (Neutrino) - Not yet tested
       Reliant UNIX - Not yet tested
       RISCOS - Not yet tested
       SCO - Not yet tested
       SGI - Not yet tested
       Symbian - Not yet tested
       Sequent - Not yet tested
       Siemens - Not yet tested
       SINIX - Not yet tested
       Solaris - Not yet tested
       SONY - Not yet tested
       Sun - Not yet tested
       Stratus - Not yet tested
       Tandem - Not yet tested
       Tru64 - Not yet tested
       Ultrix - Not yet tested
       UNIX - Not yet tested
       U/WIN - Not yet tested
       Unixware - Not yet tested
       VMS - Not yet tested
       VOS - Not yet tested
       Windows
           CE - Not yet tested
           3.1 - Not yet tested
           95 - Not yet tested
           98 - Not yet tested
           Me - Not yet tested
           NT - Not yet tested
           2000 - Not yet tested
           XP - Not yet tested
       z/OS - Not yet tested

KNOWN LIMITATIONS
   Unix
       Most unix systems have trouble working out the fully quallified domain name as it to be configured
       somewhere in the system correctly. For example in most linux systems (debian, ?) the fully qualified
       name should be the first entry next to the ip number in /etc/hosts

               192.168.0.1     fred.somwhere.special   fred

       If it is the other way around, it will fail.

   Mac
TODO
       Contributions

               David Dick
               Graeme Hart
               Piotr Klaban

               * Extra code from G
               * Dispatch table
               * List of all operating systems.

       Solaris      * Fall back 2 - TCP with DNS works ok      * Also can read /etc/defaultdomain file

SEE ALSO
               L<Sys::Hostname>

AUTHOR
       Scott Penrose <scottp@dd.com.au>

COPYRIGHT
       Copyright (c) 2001,2004,2005 Scott Penrose. All rights reserved.  This program is free software; you
       can redistribute it and/or modify it under the same terms as Perl itself.



perl v5.16.2                                     2005-06-25                           Sys::Hostname::Long(3)