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Radiance  

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The Lustre open source distributed, parallel filesystem scales to high-performance computing environments.

On the DVD  

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The Linux distro in this issue is a minimal self-containing DVD image for offline installation.

Welcome to ADMIN  

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Freedom of choice is what you got. Freedom from choice is what you want. – Devo

Flight Ticket  

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VMware's recent announcement about vCloud Hybrid Service involves expansion of the vCloud suite toward a public/hybrid cloud. In this article, we attempt to shed some light on the huge number of VMware products.

First Aid  

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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?

Server Observer  

A network monitor supports administrators by displaying a full set of critical information at a central location and alerting in case of trouble.

Order into Chaos  

The Maatkit tool suite helps administrators with performance tuning and other tasks for MySQL and other databases.

Foundational Security  

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Runtime Integrity services provide assurance that a system is uncorrupted, offering increased confidence in core security services and the potential for enhanced security decisions across many use cases through the incorporation of integrity information in their inputs.

Exchanging Exchange  

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Grommunio is a completely open source and fully compatible drop-in replacement for Microsoft Exchange that uncouples your company from Microsoft's cloud strategy and its severe security and data protection issues.

Stumbling Blocks  

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A number of breaking changes have been introduced between MySQL 5.7 and 8.0. We show you how to navigate this mandatory upgrade.

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