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Reply to topic   Topic: Apache restarting - Faulting module name: ntdll.dll LDAP
Author
hegele.o



Joined: 16 Jun 2020
Posts: 2
Location: WALLDUERN

PostPosted: Wed 17 Jun '20 14:36    Post subject: Apache restarting - Faulting module name: ntdll.dll LDAP Reply with quote

I have a problem with my apache webserver.

every time i try to start an LDAP request, the webserver restarts

Windows Server2016
16GB RAM

so i checked on another server on the same VM Ware and get the same result

i added to httpd.conf the following code but helped nothing

Code:

<IfModule mpm_winnt_module>
    ThreadStackSize    8888888
</IfModule>




Windows event
Code:

Faulting application name: httpd.exe, version: 2.4.43.0, time stamp: 0x5e9f60a7
Faulting module name: ntdll.dll, version: 10.0.14393.1715, time stamp: 0x59b0d03e
Exception code: 0xc0000374
Fault offset: 0x00000000000f8363
Faulting process id: 0x18b0
Faulting application start time: 0x01d6449534f6a6bf
Faulting application path: G:\wld_tool\xampp\apache\bin\httpd.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 117b17d3-6f27-4544-a1c7-4bb764c8bafb
Faulting package full name:
Faulting package-relative application ID:


apache error log
Code:

[Wed Jun 17 13:04:58.641960 2020] [mpm_winnt:notice] [pid 4580:tid 700] AH00428: Parent: child process 6320 exited with status 3221226356 -- Restarting.
[Wed Jun 17 13:04:58.754968 2020] [socache_shmcb:debug] [pid 4580:tid 700] mod_socache_shmcb.c(398): AH00821: shmcb_init allocated 512000 bytes of shared memory
[Wed Jun 17 13:04:58.754968 2020] [socache_shmcb:debug] [pid 4580:tid 700] mod_socache_shmcb.c(412): AH00822: for 511944 bytes (512000 including header), recommending 32 subcaches, 88 indexes each
[Wed Jun 17 13:04:58.754968 2020] [socache_shmcb:debug] [pid 4580:tid 700] mod_socache_shmcb.c(449): AH00824: shmcb_init_memory choices follow
[Wed Jun 17 13:04:58.754968 2020] [socache_shmcb:debug] [pid 4580:tid 700] mod_socache_shmcb.c(451): AH00825: subcache_num = 32
[Wed Jun 17 13:04:58.754968 2020] [socache_shmcb:debug] [pid 4580:tid 700] mod_socache_shmcb.c(453): AH00826: subcache_size = 15992
[Wed Jun 17 13:04:58.754968 2020] [socache_shmcb:debug] [pid 4580:tid 700] mod_socache_shmcb.c(455): AH00827: subcache_data_offset = 2128
[Wed Jun 17 13:04:58.754968 2020] [socache_shmcb:debug] [pid 4580:tid 700] mod_socache_shmcb.c(457): AH00828: subcache_data_size = 13864
[Wed Jun 17 13:04:58.754968 2020] [socache_shmcb:debug] [pid 4580:tid 700] mod_socache_shmcb.c(459): AH00829: index_num = 88
[Wed Jun 17 13:04:58.754968 2020] [socache_shmcb:info] [pid 4580:tid 700] AH00830: Shared memory socache initialised
[Wed Jun 17 13:04:58.754968 2020] [ssl:info] [pid 4580:tid 700] AH01887: Init: Initializing (virtual) servers for SSL
[Wed Jun 17 13:04:58.755969 2020] [ssl:info] [pid 4580:tid 700] AH01876: mod_ssl/2.4.43 compiled against Server: Apache/2.4.43, Library: OpenSSL/1.1.1g
[Wed Jun 17 13:04:59.925030 2020] [mpm_winnt:notice] [pid 4580:tid 700] AH00455: Apache/2.4.43 (Win64) OpenSSL/1.1.1g PHP/5.6.40 configured -- resuming normal operations
[Wed Jun 17 13:04:59.925030 2020] [mpm_winnt:notice] [pid 4580:tid 700] AH00456: Server built: Apr 21 2020 14:07:49
[Wed Jun 17 13:04:59.925030 2020] [mpm_winnt:info] [pid 4580:tid 700] AH80000: Distributed by: The Apache Haus
[Wed Jun 17 13:04:59.925030 2020] [mpm_winnt:info] [pid 4580:tid 700] AH80001: Compiled with: Visual Studio 2017
[Wed Jun 17 13:04:59.925030 2020] [core:notice] [pid 4580:tid 700] AH00094: Command line: '\\xampp\\apache\\bin\\httpd.exe -d /xampp/apache'
[Wed Jun 17 13:04:59.925030 2020] [core:debug] [pid 4580:tid 700] log.c(1568): AH02639: Using SO_REUSEPORT: no (0)
[Wed Jun 17 13:04:59.928027 2020] [mpm_winnt:notice] [pid 4580:tid 700] AH00418: Parent: Created child process 11568



Code where the webserver restarts
"$ldapbind = ldap_bind($ldap,$ldapuser,$pw)"
Code:

   // connect to active directory
   $ldap = ldap_connect("ldaps://xx.xx.xxx",636);  // must be a valid LDAP server!
   $ldapuser="uid=xxxxxx,ou=people,ou=pg,o=world";
   $pw="xxxxx";
   
   ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3);
   ldap_set_option($ldap, LDAP_OPT_REFERRALS, 0);
   //ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, 7);
   $filter="(|(ExtShortName=".$user."))";
   echo $filter;
   $ldapbind = ldap_bind($ldap,$ldapuser,$pw);
   
   $result = ldap_search($ldap,$ldap_dn,$filter);


please help
Back to top
James Blond
Moderator


Joined: 19 Jan 2006
Posts: 7373
Location: Germany, Next to Hamburg

PostPosted: Thu 18 Jun '20 20:44    Post subject: Reply with quote

Okay, that is a PHP error and not an apache error. Which php version do you run? Which apache version?
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glsmith
Moderator


Joined: 16 Oct 2007
Posts: 2268
Location: Sun Diego, USA

PostPosted: Sat 20 Jun '20 20:26    Post subject: Reply with quote

Reading the supplied errors it says the versions;

Apache/2.4.43 (Win64) OpenSSL/1.1.1g PHP/5.6.40
Apache Haus VC15

Are you trying to LoadModule the php5apache2_4.dll or using mod_fcgid Question
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Jan-E



Joined: 09 Mar 2012
Posts: 1266
Location: Amsterdam, NL, EU

PostPosted: Sat 27 Jun '20 14:09    Post subject: Reply with quote

Quote:
Apache/2.4.43 (Win64) OpenSSL/1.1.1g PHP/5.6.40 configured

This looks like loading a VC11 php5apache2_4.dll into a VC15 Apache. That is really asking for troubles. VC15 is not compatible with VC11. Moreover even the OpenSSL versions are different. PHP 5.6 still uses OpenSSL 1.0.2 and Apache 2.4.43 OpenSSL 1.1.1.

I would even advice not to load PHP 5.6 with mod_fcgid under Apache 2.4.43 with OpenSSL 1.1.1g. Too much chance for conflicts between the DLL's in the PHP directory and those in the Apache/bin directory.

On my own production server I have the luxury of having 5 IPv4 numbers. On one of those 5 I have a VC11 Apache 2.4.43 with OpenSSL 1.0.2, PHP 5.3 as mod_php and PHP 5.6 as mod_fcgid for really legacy applications (Drupal 6 for a website that is only being used for reference).

On the other IP's a VC15 Apache 2.4.43/OpenSSL 1.1.1g is running with a mixture of PHP 7.1, 7.2, 7.3 and 7.4 (all with their own Opcaches).
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Jan-E



Joined: 09 Mar 2012
Posts: 1266
Location: Amsterdam, NL, EU

PostPosted: Sat 27 Jun '20 18:09    Post subject: Reply with quote

Quote:
ldap_connect("ldaps://xx.xx.xxx",636)

That is a 's' connection, meaning that it uses OpenSSL. In those cases you should not have 2 different OpenSSL versions in your environment.
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hegele.o



Joined: 16 Jun 2020
Posts: 2
Location: WALLDUERN

PostPosted: Mon 06 Jul '20 9:03    Post subject: Reply with quote

I found an workaround.

i installed the 32Bit version. Now it works.

Apache/2.4.37 (Win32) OpenSSL/1.0.2p PHP/5.6.40

But i don't know where the Windows Server 2016 64bit have the problems, because before it works with the 64bit version.

Thanks for help.
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Jan-E



Joined: 09 Mar 2012
Posts: 1266
Location: Amsterdam, NL, EU

PostPosted: Mon 06 Jul '20 11:17    Post subject: Reply with quote

It wrks now because you have installed Apache in a version that matches that of your PHP 5.6. 32-bits, VC11 and also OpenSSL 1.0.2.
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