Issue 21: Managing Memory

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In this issue, we look at tools that help you manage memory, processes, security, and virtual machines.
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Articles from ADMIN Issue 21

Lead Image © George Tsartsianidis, 123RF.com

Secure Your KVM Virtual Machines

Jailbreak: Guard Against Breakouts on Your Virtual Machines free

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.
more...
Lead Image © Vladimir Kramin, 123RF.com

Hyper-V with the SMB 3 protocol

Fast Track free

Microsoft has introduced several improvements to Windows Server 2012 and Windows Server 2012 R2 with its Server Message Block 3. Hyper-V mainly benefits from faster and more stable access to network storage. In this article, we look at the innovations.
more...
Lead Image © Christos Georghiou, 123RF.com

Monitoring with collectd 4.3

The Collector free

Collectd 4.3 is a comprehensive monitoring tool with a removable plugin architecture.
DevOps
more...
Lead Image © Konstantin Chagin , 123RF.com

First steps in IT automation by Rex

Automation Tool free

Rex doesn't need agents or a special language to describe the tasks it performs on remote computers.
DevOps
more...
Lead Image © madpixblue, 123RF.com

High Availability without Pacemaker

Workaround free

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.
more...
Lead Image © Alexander Rivosh, 123RF.com

Monitoring HPC Systems

Nerve Center free

Ganglia is probably the most popular monitoring framework and tool, in that HPC, Big Data, and even cloud systems are using it. In this article, we show you how to install and configure Ganglia and get it up and running on a simple two-node system.
more...

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