Foundation and Earth
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Foundation (5)
Unix and Linux System Administration Handbook 5th Edition
Evi Nemeth & Garth Snyder & Ben Whaley & Trent Hein
OpenStack Operations Guide
Tom Fifield & Lorin Hochstein & Jonathan Proulx & Everett Toews & Diane Fleming & Joe Topjian & Anne Gentle
Mastering Java 9
Martin Toshev
Time Management for System Administrators
Thomas A. Limoncelli