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Five Linux commands you have (probably) never heard of
Learn about five of the more rarely used Linux commands (logsave, diff3, pstree, nl and split) that are useful, with a description of each command's flags and options. These commands work well for file management, tracking, and output and process ana... Tip
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Backing up the Linux master boot record
The Linux master boot record (MBR) contains GRUB and the partition table, and to avoid crippling boot errors, it is a good idea to make a backup of it. Learn how to backup the MBR and how this effort can pay off when troubleshooting a Linux boot prob... Tip
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Fixing Linux boot problems with GRUB
If problems in the Linux boot process occur when GRUB is loaded find out how to figure out what went wrong using two options. You can re-install GRUB using grub-install and start your computer, or manually load GRUB through the GRUB command interface... Tip
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How well do you know Linux commands and tools?
How well do you know Linux? Network and systems administrators can test their understanding of Linux commands and configuration utilities with this quiz. Quiz
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Installing Nagios on Linux and unravelling software code names
A reader new to Linux wonders about which distribution is recommended for installing Nagios and what Nahant and Tikanga mean. Ask the Expert
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Systems monitoring and tuning tools for RHEL 5
Documentation for Red Hat Enterprise Linux 5 covering checking system performance, tuning, kernel configuration and extending the file system exists in a variety of places. Expert Ken Milberg gives pointers for where to look and shares some of his fa... Ask the Expert
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Troubleshooting Linux boot problems
If your Linux server fails to show the login screen at startup, you have a boot problem. Learn some tricks on how to diagnose and fix a Linux server boot problem from Grub failure to init and runlevels. Tip
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Recovering your Linux server with a Knoppix rescue disk
Learn how to recover data on your Linux server if it doesn't boot properly using Knoppix, and how to mount the Linux file systems on your server with step-by-step instructions. How to troubleshoot and interpret server data from the fdisk -l command i... Tip
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Using nmap for Linux administration and security
The open source tool nmap is ideal for network troubleshooting, scanning and auditing. The tool can be used to identify devices on the network as well as the services running on them. It can also identify advanced information, such as operating syste... Tip
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Linux clusters made easy
Linux cluster experts say systems can run well with good design, open source management and monitoring tools and proactive administrators. The IBM white paper is written for Linux admins with small-scale cluster experience who are facing working on a... Article