#21487 [Com]: gethostbyname can resolve not existing hosts under Windows

ID: 21487 Comment by: phpbugs at thequod dot de Reported By: corinl at gmx dot de Status: No Feedback Bug Type: Network related Operating System: Windows PHP Version: 4.3.0 New Comment: <?php echo 'PHP '.phpversion()."\n"; $sdip = gethostbyname("slashdot.org"); $sddomain = gethostbyaddr($sdip); print "IP: $sdip\n"; print "Domain: $sddomain\n"; echo gethostbyname('totallyfake456jh47r.com')."\n"; echo gethostbyname('2.0.0.127.list.dsbl.org')."\n"; echo gethostbyname('972.79.82.216.list.dsbl.org')."\n"; echo gethostbyname('150.250.35.66.list.dsbl.org')."\n"; ?> returns: PHP 4.3.10 IP: 66.35.250.150 Domain: slashdot.org totallyfake456jh47r.com 127.0.0.2 216.82.79.97 216.82.79.97 All looks fine, exept the last two lines! It returns the server's IP address (216.82.79.97) when an entry is not listed in dsbl.org. Previous Comments: ------------------------------------------------------------------------ [2005-12-09 22:09:45] phpbugs at thequod dot de I've just seen the same problem on PHP 4.3.10/win32: <?php $db = gethostbyname("gmx.de"); var_dump($db); $db = gethostbyname("gmx.de5"); var_dump($db); $db = gethostbyname("gmx.de5."); var_dump($db); ?> returns string(14) "213.165.64.215" string(12) "216.82.79.97" string(12) "216.82.79.97" I'm not the server admin, just troubleshooting it remotely. ------------------------------------------------------------------------ [2003-01-27 22:33:18] sniper@php.net No feedback was provided. The bug is being suspended because we assume that you are no longer experiencing the problem. If this is not the case and you are able to provide the information that was requested earlier, please do so and change the status of the bug back to "Open". Thank you. ------------------------------------------------------------------------ [2003-01-07 09:48:43] pollita@php.net It's possible that your DNS is setup with a search domain that has a wildcard. I'd like you to try two things: 1) gethostbyname("gms.de5."); <--- does that return an IP address as well? (Note the trailing dot) 2) Check your TCP/IP Properties | Advanced Settings | DNS Tab | describe every single piece of information on this property sheet, give detail. Interrestingly there doesn't seem to be a revese lookup for 62.75.134.200... ------------------------------------------------------------------------ [2003-01-07 06:56:17] nicos@php.net With the following script: <?php $db = gethostbyname("gmx.de5"); var_dump($db); $db = gethostbyname("gmx.de"); var_dump($db); ?> Edin can't reproduce the problem under windows. Can you please try that script? You're saying that host gmx.de5 on the server reports an error but you're under windows and windows doesn't have 'host'... Are you sure your DNS is working fine? I'm getting 213.165.65.100 from gmx.de and not 62.75.134.200... gethostbyname() is also supposed to return the hostname on failure. At least thats what we (Edin and me) are getting under Windows and Linux/Unix. Thank you for your report. ------------------------------------------------------------------------ [2003-01-07 06:51:57] nicos@php.net Just a note, I can not reproduce the problem under Linux/Unix. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/21487 -- Edit this bug report at http://bugs.php.net/?id=21487&edit=1