Flash Sale--Mastering Linux Security and Hardening. My "Mastering Linux Security and Hardening book is part of a flash sale that will last until 9:50PM EST/6:50PM PST tonight. If you're a Linux administrator or are studying to become a Linux administrator, be sure to pick up a print copy of this book at a substantial savings.
Purchase link for the flash sale:
https://amzn.to/3uugt7I
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https://www.youtube.com/watch?v=YaKr-QBGYhw