Server and Network Monitoring with iPhone
February 25, 2010 – 6:53 pm | No Comment

What is a Unix sysadmin doing with an iPhone, you ask? It was a birthday present, if that’s all right with you. I know, I should have gotten something odd with a beta version of …

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Networking

Unix and Linux network configuration. Multiple network interfaces. Bridged NICs. High-availability network configurations.

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Reviews of latest Unix and Linux software. Helpful tips for application support admins. Automating application support.

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Disk partitioning, filesystems, directories, and files. Volume management, logical volumes, HA filesystems. Backups and disaster recovery.

Monitoring

Distributed server monitoring. Server performance and capacity planning. Monitoring applications, network status and user activity.

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Cool Unix shell commands and options. Command-line tools and application. Things every Unix sysadmin needs to know.

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Server and Network Monitoring with iPhone
February 25, 2010 – 6:53 pm | No Comment
Server and Network Monitoring with iPhone

What is a Unix sysadmin doing with an iPhone, you ask? It was a birthday present, if that’s all right with you. I know, I should have gotten something odd with a beta version of …

Linux and High I/O Wait
December 21, 2008 – 12:07 am | One Comment
Linux and High I/O Wait

When you look at the CPU activity of your computer, one of the parameters is the iowait. This value shows how much time your CPU wastes while it is waiting for I/O operations for complete. …

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 …