Articles
Managing Linux Memory
Even Linux systems with large amounts of main memory are not protected against bottlenecks and potentially drastic performance degradation because of memory shortage. In this article, we investigate the complex causes and test potential solutions.
Monitoring with collectd 4.3
Collectd 4.3 is a comprehensive monitoring tool with a removable plugin architecture.
Secure Your KVM Virtual Machines
A common misconception posits that software cannot cause mischief if you lock the system away in a virtual machine, because even if an intruder compromises the web server on the virtual machine, it will only damage the guest. If you believe this, you are in for a heap of hurt.
Malware Analysis
We show you how to dig deep to find hidden and covert processes, clandestine communications, and signs of misconduct on your network.
High Availability without Pacemaker
Managing your cluster could be so simple if it weren't so complicated. The object of many an admin's wrath in such cases is often a single component: Pacemaker. Luckily, other open source tools offer alternative options for high availability.
TheSSS: World's Smallest Server Suite
Want to set up a full-fledged web, file, or proxy server in 10 seconds? No problem with TheSSS, the smallest server suite in the world. The new 8.0 version of this useful Linux distribution weighs in at a mere 30MB.
Live Kernel Update Tools
Two projects by Red Hat and SUSE – Kpatch and kGraft – attempt to patch the kernel with security updates on the fly. We look at features in these two tools and their suitability for production use.
The Benefit of Hybrid Drives
People still use hard disks even when SSDs are much faster and more robust. One reason is the price; another is the lower capacity of flash storage. Hybrid drives promise to be as fast as SSDs while offering as much capacity as hard drives. But can they keep that promise?
Redo Backup
Redo Backup backs up complete hard drives locally or over a network. The focus is on simple operation and high reliability in a variety of deployment scenarios.
Nagios Passive Checks
Why spam yourself with useless notifications every time a script completes successfully? You can use Nagios to screen the notices and just send the ones that need action.
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