(Modified:
2026-07-25)
— Written by
SimeonOnSecurity— 6 min read
Master Linux security for the CompTIA Linux+ XK0-005 exam. Learn permissions, special bits, ACLs, sudo, PAM, SSH hardening, SELinux, AppArmor, firewalls, auditing, OpenSSL, and gpg with real examples.
(Modified:
2026-07-25)
— Written by
SimeonOnSecurity— 9 min read
starting a journey through the intriguing history and evolving landscape of cryptography. This detailed breakdown into encryption techniques, spanning ancient civilizations to modern quantum threats, equips cybersecurity enthusiasts with a profound understanding of symmetric and asymmetric encryption methods. From the principles of confidentiality, integrity, and authentication to exploring the complexities of Elliptic Curve Cryptography and Diffie-Hellman Key Exchange, this article unveils the secrets behind securing digital communication.
(Modified:
2026-07-25)
— Written by
SimeonOnSecurity— 5 min read
Explore common network ports and protocols, their secure alternatives, and the importance of IP protocol types. Enhance network security and optimize communication.