Entries Related to ‘System Administration’

Ever felt bewildered when troubleshooting a problem with your CentOS server? These troubleshooting tools and best practices can help you solve most of your problems swiftly and efficiently.

The Wireshark network protocol analyzer can zero in on just the network traffic you want to see to tell you things like whether your encryption is working, or find infected hosts on your network.

You can enhance the Nagios network monitoring application with plugins. One especially useful plugin lets Nagios monitor the health of your cluster instead of that of individual hosts.

Whether you need more disk space or an easy way to share files on your network, you can turn to NFS, a distributed filesystem for which support is integrated in the Linux kernel.

Learn how to employ some of Apache’s most useful and effective modules to restrict access to your Apache-powered website.

Getting the correct time on computers running Linux is more complicated than you might think, and formatting it can be even more challenging. Let Wazi walk you through the forest of options.

When you have hundreds of clients to roll out, you need a way to avoid repetitive, time-consuming work. The FOG imaging application runs on Linux and lets you image Windows XP, Vista, and 7 clients using a web-based GUI for administration.

A directory service stores information about users and other entities in a database that that you can use to simplify network management. Properly implemented, directory services such as OpenLDAP lessen the possibility of chaos and disorder on a large network.

Linux installation is pretty simple – answer a few questions, then click Start and wait. But what if you could eliminate a lot of the waiting? That’s the promise of Clonezilla Server Edition, which can help you install servers with less effort, and the same, or better, results.

With Xymon, you can monitor the health of thousands of servers and applications, and the network connectivity among them. Xymon has some interesting advantages for administrators over alternatives like Nagios and Big Brother.