More postfix spam blocking….

Monday, January 22nd, 2007

Postfix has a NUMBER of tools for rejecting unwanted messages before they get in the door and waste your CPU time on deciding “hey this mail is spam”. Up until recently I’ve mostly used the relays.ordb.org check (which in the last couple months has now gone defunct.) When we started noticing problems with ordb.org’s responsiveness [...]

Multihead PC

Tuesday, September 5th, 2006

More than once I’ve wished for a second (or third) set of keyboard/mouse/video for my main desktop. Linux is a true multiuser operating system which means that it’s capable of hosting multiple graphical logins at the same time. For MOST things, a single, modern CPU is more than adequate to deal with this (memory is [...]

AMD comes out on top in Dual Core CPU showdown

Friday, December 2nd, 2005

ZDnet has a showdown between AMD and Intel dual core processors. It looks as though AMD has won in every comparison. This is not the only good news for AMD lately as summarized here. Intel’s overwhelming dominance is not what it used to be.    Send article as PDF   

BIOS Beep Codes

Friday, November 18th, 2005

One of the nice things about working on computers is that when it comes to the raw hardware of a system, the engineers have designed a way to communicate what’s wrong (even if it’s just a general idea) even when the hardware has a pretty serious problem. When a computer boots it goes through a [...]

LCD displays versus older CRT displays

Monday, August 1st, 2005

Sometimes I find that people are surprised that you could replace just the monitor (the display) of your computer without replacing the tower (the part that holds the CPU and drives). You can though and it’s a pretty easy thing to swap. There are however some choices out on the market and a bit of [...]

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