UNIX system performance monitoring involves more than just keeping an eye on the amount of free space or the number of users who are logged in. One can into various files to find out anything about ...

Nagios, called NetSaint in its early versions, is a best of class, industry standard, open source (yes, free!) and fully extendable tool for monitoring networks. With surprising little effort, you can ...

Helping a friend with a problem on one of his Cisco switches, I noticed that all of his switches were logging to one of his admin servers and that the log they were all writing to was not only getting ...

You have thousands of commands at your disposal as a Unix administrator. However, even the most advanced administrators only use a finite number of tools and utilities on an ongoing basis. The ...