Software-Defined Networking (SDN) marks a paradigm shift toward a more holistic approach for managing networking hardware. The Floodlight OpenFlow controller offers an easy and inexpensive way to experience the power of SDN.
We look into some everyday questions that administrators with Ceph clusters tend to ask: What do I do if a fire breaks out or I run out of space in the cluster?
Linux users didn’t need the recent NSA eavesdropping scandal to convince them that securing communication was a good idea. For years, free software developers have been creating secure tools that offer similar functionalities to all of those popular but very leaky services with ridiculous names.
http://www.linuxpromagazine.com/Online/Features/PRISM-Break-Part-1
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