Practical Linux Security Cookbook: Secure your Linux environment from modern-day attacks with practical recipes, 2nd Edition

CYBERSECURITY USING LINUX: Detect Threats, Secure Servers, and Protect Critical Systems with Practical Linux Security Strategies

Harden the Penguin: Practical Linux Security Checklists for Small Servers

Linux Security: Analysis of security methods and Protect system from malware attacks, and cyber threats (With Practice Examples)

Linux and FreeBSD Security Tips: Practical Security Techniques for Hardening Linux and FreeBSD Systems in Modern Production Environments