Nov 30, 2006
Nagios is a powerful and flexible monitoring tool. I have been using Nagios professionally for about two years, and......
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Charly's Column The Sysadmin’s Daily Grind: Dnsgraph

Jul 31, 2006

A partly overloaded DNS server can slow down all the workstations on the network. Dnsgraph is an early warning system that gives administrators a graph of critical values. Your Dnsgraph charts will help you keep your systems serving names.

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Charly's Column The Sysadmin’s Daily Grind: Cancerbero

May 31, 2006

When ports on a host start opening and closing like window shutters in a gale, it’s time for admins to pay attention.

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Orca Monitoring Linux performance with Orca

Mar 31, 2006

Monitor and troubleshoot Linux system performance with the free and powerful Orca.

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Command Line: File Viewers Viewing files with cat, more, less, head, and tail

Feb 28, 2006

Practical tools such as cat, less, and head are convenient for viewing text.

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Charly's Column The Sysadmin’s Daily Grind: Sarg

Nov 30, 2005

A busy proxy server is something that no self-respecting admin should leave to its own devices. The Squid logfile analyzer, dubbed Sarg by its author, helps you keep your Squid servers on track.

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Charly's Column The Sysadmin’s Daily Grind: Smokeping

Apr 30, 2005

If you do not receive a response to a ping, or if the response is seriously delayed, you might like to take this as a warning. But who wants to ping all day? You need a ping-based monitoring utility like Smokeping.

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Charly's Column Bootchart The Sysadmin’s Daily Grind: Bootchart

Feb 28, 2005

What could be more boring than watching a computer run through an error-free boot routine? Why watch for messages that may never appear? Every second you save adds to your valuable leisure time. Bootchart helps you find those valuable leisure moments.

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