Original computing articles by a systems administrator

Category Archives: Linux

1080p HDTV H.264 Playback in Linux

I recently picked up a 40 inch 1080p TV on Black Friday for my media computer (standard Ubuntu Intrepid Ibex install). Since this machine is a $450 dollar Dell Vostro (Intel Core 2 Duo E4500 CPU) it isn’t the fastest machine out there, but I have still been able to get generally smooth playback of… Continue Reading

Authenticating with Active Directory using Likewise Open and Migrating from NIS

The current infrastructure at my office uses network information services (NIS) to authenticate users on Linux machines against the office’s Window’s domain. I found this to be unreliable. It depends upon Microsoft Identity Management for Unix, version 5.2, which is flaky in my experience. My goal was to be able to transition from NIS to… Continue Reading

Upgrade Ubuntu Remotely

Update: I do not recommend the following the method. It left me with a partial install (which fortunately I have seem to recovered from). Also when trying to install a restricted driver, I had to delete the cdrom source from apt. This was because the restricted drivers GUI would hang when trying to mount the… Continue Reading

OpenVZ Bean Counters Nagios Script

“OpenVZ is container-based virtualization for Linux. OpenVZ creates multiple secure, isolated containers (otherwise known as VEs or VPSs) on a single physical server enabling better server utilization and ensuring that applications do not conflict.” For each of these containers or VEs, there are resource limits. The psuedo file system, /proc, tracks various process and kernel… Continue Reading

How-To: Connecting to a CISCO Router Console Port with USB and Linux

I was lucky enough to be loaned a couple of CISCO 1720 routers by my office today. Connecting to them was pretty straight forward. What you will need: 1. A roll-over cable (aka Cisco Console Cable). These are usually RJ-45 on the router side and serial on the PC side. 2. If your computer doesn’t… Continue Reading