Logfiles contain records of what happens on a Linux system and the services it runs. Tools like Logcheck and Logsurfer filter out the most important events for the administrator, and they can even trigger an appropriate reaction automatically.

When a cluster node fails, the Pacemaker high-availability tool launches the services on another node. A lesser known feature is Pacemaker’s ability to put failed services back on their feet in the cluster manager.

We asked some of our authors to share their favorite automation tricks.

Chronicler Zack Brown reports on the latest news, views, dilemmas, and developments within the Linux kernel community.

The Linux Magazine Academy is offering 20% off all their online trainings until January 15, 2012. Depending on the course chosen customers can save several hundred pounds.

Last month, the Havege daemon helped organize the chaos in this column. Today, Charly attempts to organize the network – a tale of suffering in three chapters.

The innovative Archipel cross-hypervisor management tool uses the Jabber protocol to chat with servers running Xen, KVM, OpenVZ, and VMware.

Many administrators rely on Linux tools whose fate is already sealed, but external forces can help people let go of old habits.