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

Join or ReJoin A Member Server or Workstation using Netdom Command Line

The * means prompt for a password. Example Okay say you have a member server that has fallen off the domain, but you don’t want to go through the normal procedure of using “My Computer”->”Computer Name” and then disjoining to a WORKGROUP rebooting, then re-joining to the domain and rebooting again. Note: You need to … Read more

How to remove an old long gone DHCP server from Active directory and DHCP on Windows 2003.

Open ADSI edit. Configuration-> Services- > NetServices Checked the properties of: CN=DhcpRoot Then edited this attribute: dhcpServers There was one server listed in there: i172.17.5.1$rcn=cdc.domain.com$0x00000000$dcdc01.domain.com$ This was the one that seemed to be left hanging around. Took a note of the settings just incase then deleted it and clicked “OK” to apply the settings. Checked … Read more

RAID – Redundant Array of Inexpensive Disks

RAID (Redundant Array of Inexpensive Disks) is a way of organising and using disks (Hard Disks) to increase performance or provide fault tolerance. RAID can also be set up to provide both functions at the same time.  RAID is a set of two or more ordinary hard disks and a specialized disk controller that contains … Read more