You do not have permission to send on behalf of the specified user when trying to send via Outlook 2003

The problem: You do not have permission to send on behalf of the specified user when trying to send via Outlook 2003. However all mailbox permissions are correct. Can’t send any messages, can recieve fine though, you may see an warning event log message on the exchange server each time the user tries to send. … Read more

Windows Disable Login Screensaver

If you are virtualising its a good idea to disable the login screensaver, this will save on processor cycles wasted drawing the screensaver to save a screen that doesn’t exist. Imagine 10 servers on an ESX host all with the screensaver running this does create an overhead. To disable do the following: [Start] [Run] [Regedit] … Read more

Tomcat 6.0 croaks with an error: Failed creating java C:\jdk\jre\bin\server\jvm.dll

My Tomcat 6.0 server suddenly decided to croak. Strange thing was nothing had changed. [2010-10-29 08:41:57] [994  prunsrv.c] [error] Failed creating java C:\jdk\jre\bin\server\jvm.dll [2010-10-29 08:41:57] [1269 prunsrv.c] [error] ServiceStart returned 1 [2010-10-29 08:43:14] [174  javajni.c] [error] The specified module could not be found. Was getting the error above, so i used filemon under the Procmon … Read more

PHP 500 Error on IIS

There are many causes of a 500 error on PHP pages on IIS. But this was a little bit of a weird one, when trying to make some php pages work they all generated 500 errors. I created a test php page which worked fine, just all the scripts didn’t so I checked through the … Read more

Nagios NSClient++ Access Denied Error on Installation

I have the following problem when trying to install nsclient++ onto a Windows 2003 Server SP2 (note this is a member server). Using a local administrator account on the server trying to install the install completes but the service does not get registered trying to manually register gives this error: C:\Program Files\NSClient++\nsclient++ -install e NSClient++.cpp(212) … Read more