Linux monitoring and troubleshooting

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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. 

  • 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... 

  • 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. 

  • 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... 

  • 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... 

  • 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... 

  • Understanding Linux system performance management using top

    The top command in Linux can help Linux server administrators determine how their system is performing, but the information provided may not be clear. Learn what top results mean, including load average values, memory efficiency, and process resource... 

  • Zenoss adds VMware monitoring to systems management suite

    Zenoss Inc. has added VMware monitoring to its systems management suite, conslidating data on virtual and physical systems in a single console. 

  • Oracle Enterprise Linux displaces Red Hat at publishing company

    In its migration from Red Hat Enterprise Linux to Oracle Enterprise Linux, the magazine publisher Bonnier Corp. has streamlined support at lower cost. 

  • Linux shops navigate the nuanced support landscape

    Despite the evolution of Linux support and the undeniable success of the OS, lingering concerns prevent users from painting a totally rosy Linux support picture.