Free Sample Chapters

Master Linux firewalls with iptables, firewalld, nftables, and UFW. Learn practical firewall rules for servers, workstations, cloud, Docker, Kubernetes, and real-world security scenarios.

Practical Linux firewall guide covering iptables, nftables, and firewalld. Learn secure rule design, hardening strategies, logging, cloud use cases, automation, and troubleshooting in real environments.

Deploy and manage OSSEC and Wazuh on Linux. Implement host-based intrusion detection, file integrity monitoring, active response, SIEM integration, and scalable security monitoring.

A practical Linux security auditing guide covering system baselines, auditd, permissions, SELinux, AppArmor, firewall audits, automation, and compliance verification.

Learn essential Linux security fundamentals. Secure users, permissions, authentication, services, firewalls, SELinux, logging, intrusion detection, updates, backups, and containers with practical examples.

Harden Linux systems for production use. Learn kernel security, access control, SELinux, AppArmor, firewalling, logging, intrusion detection, automation, and incident response with practical examples.

Secure Linux systems step by step. Harden SSH, users, permissions, services, networking, logging, auditing, intrusion detection, containers, kernel settings, encryption, and compliance across major distributions.

Master SELinux and AppArmor with practical, real-world examples. Learn mandatory access control, policy creation, troubleshooting, service hardening, containers, and production security best practices.