Linux LVM: Reduce Filesystem and Logical Volume
March 14, 2012 – 5:07 pm | No Comment

The following example shows how to reduce the size of a filesystem mounted on an LVM logical volume. The instructions below are only for non-root filesystems. No reboot is required, but the filesystem will need to be unmounted. So, if there are any user applications using this filesystem, they will need to be stopped and the users will need to log out.

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Data Security and Online Privacy
June 9, 2008 – 4:57 pm | No Comment
Data Security and Online Privacy

You have information on your computer that you don’t want others to see. Sometimes you want to share information with someone, but you don’t want anyone to know that you are the one sharing it. Let’s say that you came across some information suggesting that your employer may be breaking law. You want to make this information public, but you can’t do it openly becausloe you will be fired. Another example: you are at work and you need to send a personal, confidential email…

Effective Virus Protection
May 28, 2008 – 5:13 pm | No Comment
Effective Virus Protection

How do you protect your computer from viruses? Most computer users just buy antivirus software, install it, and reboot their PC – done. If only it was that easy. Over the past several years percentage of home and business computers infected with viruses has been steadily growing. Most PCs are sold these days with preinstalled antivirus software. And yet, the number of infected computers keeps on growing…

Highly redundant array configuration
May 8, 2008 – 3:58 pm | No Comment
Highly redundant array configuration

The cost of storage arrays is falling along with the quality of their manufacture. To quote Lev Andropov from the “Armageddon”: “Components. American components, Russian Components, ALL MADE IN TAIWAN!” What in the nineties used …

AI Research: Playing Mind Games
April 23, 2008 – 3:26 am | No Comment
AI Research: Playing Mind Games

The news of Artificial Intelligence research always attracted my attention. Whenever this subject comes up on Slashdot, I just can’t resist posting a comment. The desire usually is to dump a bucket of cold facts …

Your unsecured Wi-Fi network
April 21, 2008 – 2:43 am | No Comment
Your unsecured Wi-Fi network

Network World reports this week that, according to a study by Accenture, some twelve percent of computer users are connecting to some else’s unsecured Wi-Fi networks. So here’s the question I wanted to discuss: is …