Even as the tech world works to figure out just what to do with the potential of cloud computing and big data, along comes a new bit of technology fueled by open source software: software-defined networks.

SpringSource Releases New Tool Suites

Codethink Releases Baserock 1.1

PostgreSQL 9.2 Released

ROSA Announces Enterprise Distribution

Amahi Releases Ubuntu Edition

New Version of UndoDB Released

Black Duck Announces Code Quality Audit

digiKam Releases Version 2.7

Creating secure websites with their own privileges on a single server.

Nesting of hypervisors, known as a nested virtualization, makes it possible to set up a complete virtualization scenario with a data center, storage, and high-availability functions on a laptop. In this article, we show you how, with Linux iSCSI and free VMware trial versions.

Mention NoOps, and you’re sure to start an argument. But terminology aside, this is a coming trend to which ITs should pay attention.

To check on the health of a Linux system, administrators can turn to vmstat, iostat, netstat, and ifstat. Or, you can just use the versatile dstat, which combines the features of several tools in a single package.

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.