Tech-Blog

This week I've mainly been working with the wonderfull world of VLANs. When a network grows to a certain size or your running VOIP on your network you may consider separation of the data to improve the network performance.  You can do this either by buying separate switches and if you need to connect them use a router to ensure the data is kept apart.  However VLAN technology has been around for...

Exchange 2003 is still used at a number of my clients, one of them this week had a few issues. If exchange reaches its default limit of 18gb Exchange Information store will go offline and its fairly easy to increase the database limit using the registry – Microsoft have kindly created a fix-it – http://support.microsoft.com/kb/912375 However this weeks issue was due to something else…. checking...

What can be worst, 2 days before xmas and a clients server goes down.  Ok it could be a day before xmas or before you take a holiday right? A client running Small Business Server 2008, who we regularly check tapes and monitor all their error logs get a critical drive failure.  A hardware mirror fails and recovery should be simple? Arriving on site ahead of our SLA, we check the server. ...

I often get asked by customer who are trying to understand what they need to know when buying a PC or Laptop, I normally talk them through a simple analagy relating to cars (which most people understand): The PC Car analagy The CPU within a computer is like a cars engine, the faster it runs, the more you can do with it.  The CPU is normally measured in Gigahertz/Ghz (although when I first started...

Just had one of them days today, I have a pretty good grasp of windows and spotting the odd trojan or virus however rootkits are harder to spot. I generally run good old combofix on a pc when I get a call from a user saying there is an issue, but what happens when that wont run? Most of the manufacturers...