Understanding Network Hacks: Attack and Defense With Python
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Advanced Penetration Testing for Highly-Secured Environments
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CentOS High Availability
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Crypto101
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OpenStack Operations Guide
Tom Fifield & Lorin Hochstein & Jonathan Proulx & Everett Toews & Diane Fleming & Joe Topjian & Anne Gentle
Moving to Office 365: Planning and Migration Guide
Matthew Katzer
CentOS 6 Linux Server Cookbook
Jonathan Hobson