#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:
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.
Previous Comments:
------------------------------------------------------------------------
[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.
------------------------------------------------------------------------
[2003-01-07 06:32:02] corinl at gmx dot de
Hi,
try this:
echo(gethostbyname("gmx.de5"))
output is: 62.75.134.200
in fact, this domain doesn't exist, only gmx.de exists.
('host gmx.de5' on the server reports an error)
this behavior is bad when for example using getbyhostname to validate
an email address, because an email send to someone@gmx.de5 would surely
not arrive...
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Thread (8 messages)