TheGeekery

The Usual Tech Ramblings

Cluster Services, and moving resources...

This week has been rather busy, finishing off the deployment of a bunch of SQL clusters for a major project the entire company is working on. Yesterday I spent the entire day fighting an install of a single instance of SQL with all kinds of errors1. But this one is a quick post on an easy error we stumbled upon this morning…

  1. A post will be forth coming on that day of hell 

MSI Installer: A system restart from a previous install or update is pending

Every now and again I get issues with the MSI installer service complaining that a previous install is pending a reboot, even after a reboot. I’ve seen this issue crop up on Exchange updates, Visual Studio updates, and more recently on a Trend Micro Office Scan upgrade. This causes some hair pulling most of the time, but I stumbled across the secret key that controls this feature…

Nagios, NRPE, and mixed SSL environments

Over on the LinkedIn Nagios Users group, Michael Sverdlik asked an interesting question about how to handle a mixed NRPE environment, where some hosts require SSL and others do not. The first recommendation is a custom script that basically executes the command twice, the first one looks for an error, then falls back to using non-ssl mode… I came up with a different way of handling it, without falling back to using custom scripts.

Nagios Notifications via Twitter

For several months I’ve had Nagios sending notifications for some services via Twitter. I set this up so that I could offer a couple of friends a little more visibility into their services. This used to be a trivial task as Twitter supported basic authentication, however they decided to go with a more secure methodology, and enforced OAuth authentication…