HTTP Error 500 OR PHP Fatal error: Allowed memory size of xxxxxx bytes exhausted while trying to use MPDF

Error Message: HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.

And

Error Message: PHP Fatal error: Allowed memory size of xxxxxx bytes exhausted (tried to allocate xxxx bytes) in C:\inetpub\internal portal\mpdf\mpdf.php

The default PHP install on Windows Server 2008 was set at 16 MB.  I updated it to 32 MB.  Keep trying until your pdf will load.  You don't want to go over board.  You also want to set it on that page so that PHP isn't always using that amount of memory.  You can do that by putting this in your php document.

ini_set('memory_limit', '256M');

Source: Link

Windows Server Update Service (WSUS) error 0x80072ee6, won't contact server

Are you getting some error like this?

WU client succeeds CClientCallRecorder::BeginFindUpdates from AutomaticUpdates with call...  WU client executing call ... of type Search Call
DownloadFileInternal failed for fs03/SelfUpdate/wuident.cab: error 0x80072ee6
IsUpdateRequired failed with error 0x80072ee6

The reason you are getting that is in the GPO under

Computer Configuration -> Policies -> Admin Templates -> Windows Components -> Windows Update:

"Specify intranet Microsoft update service location"


You probably entered the hostname as wsus.test.com when it should be http://wsus.test.com

Source:  Link

Finding your base DN in Active Directory

I was trying to do an LDAP query against Active Directory and I was unable to get the query to work.  A good tool to use to troubleshoot this is ldp.exe.  It is installed by default on Windows Server 2008, but I believe its on the Windows Server 2003 disc, just not installed by default.  A typical base DN is DC=microsoft, DC=com.  I was using exactly the same logic and it still wasn't working.  I then found a tool called dsquery.

I was able to use dsquery on my 2008 server.  I haven't had a chance to see if runs on Server 2003.  This is how it can be used to help you.

Open a command prompt (Start->Run->cmd).


If you type "dsquery" (Link) you will get what is below: (I modified it a little bit and added Links)

Description: This tool's commands suite allow you to query the directory
according to specified criteria. Each of the following dsquery commands finds
objects of a specific object type, with the exception of dsquery *, which can
query for any type of object:

• Type "dsquery computer" - 
• finds computers in the directory.
• More Info: Link
• Type "dsquery contact" - 
• finds contacts in the directory.
• More Info: Link
• Type "dsquery subnet" - 
• finds subnets in the directory.
• More Info: Link
• Type "dsquery group" - 
• finds groups in the directory.
• More Info: Link
• Type "dsquery ou" - 
• finds organizational units in the directory.
• More Info: Link
• Type "dsquery site" - 
• finds sites in the directory.
• More Info: Link
• Type "dsquery server" - 
• finds AD DCs/LDS instances in the directory.
• More Info: Link
• Type "dsquery user" - 
• finds users in the directory.
• More Info: Link
• Type "dsquery quota" - 
• finds quota specifications in the directory.
• More Info: Link
• Type "dsquery partition" - 
• finds partitions in the directory.
• More Info: Link
• Type "dsquery *" - 
• finds any object in the directory by using a generic LDAP query.
• More Info: Link

For help on a specific command, type "dsquery <ObjectType> /?" where
<ObjectType> is one of the supported object types shown above.
For example, dsquery ou /?.

Remarks:
The dsquery commands help you find objects in the directory that match
a specified search criterion: the input to dsquery is a search criterion
and the output is a list of objects matching the search. To get the
properties of a specific object, use the dsget commands (dsget /?).

The results from a dsquery command can be piped as input to one of the other
directory service command-line tools, such as dsmod, dsget, dsrm or dsmove.

Commas that are not used as separators in distinguished names must be
escaped with the backslash ("\") character
(for example, "CN=Company\, Inc.,CN=Users,DC=microsoft,DC=com").

Backslashes used in distinguished names must be escaped with a backslash
(for example,
"CN=Sales\\ Latin America,OU=Distribution Lists,DC=microsoft,DC=com").

Examples:
To find all computers that have been inactive for the last four weeks and
remove them from the directory:

    dsquery computer -inactive 4 | dsrm

To find all users in the organizational unit
"ou=Marketing,dc=microsoft,dc=com" and add them to the Marketing Staff group:

    dsquery user ou=Marketing,dc=microsoft,dc=com |    dsmod group
        "cn=Marketing Staff,ou=Marketing,dc=microsoft,dc=com" -addmbr

To find all users with names starting with "John" and display his office
number:

    dsquery user -name John* | dsget user -office

To display an arbitrary set of attributes of any given object in the
directory use the dsquery * command. For example, to display the
sAMAccountName, userPrincipalName and department attributes of the object
whose DN is ou=Test,dc=microsoft,dc=com:

    dsquery * ou=Test,dc=microsoft,dc=com -scope base
    -attr sAMAccountName userPrincipalName department

To read all attributes of the object whose DN is ou=Test,dc=microsoft,dc=com:

    dsquery * ou=Test,dc=microsoft,dc=com -scope base -attr *

Directory Service command-line tools help:
dsadd /? - help for adding objects.
dsget /? - help for displaying objects.
dsmod /? - help for modifying objects.
dsmove /? - help for moving objects.
dsquery /? - help for finding objects matching search criteria.
dsrm /? - help for deleting objects.

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Hopefully this helped you like it helped me!

UPDATED:  Need to add the full config because we missed 2 things, but here is a page I wanted to link to because it talks about how to deny users by using LDAP.

Link