Undercity of Virtualization

Linux systems are heart of virtualization and containerization technologies and often is the core of most cloud solutions and edge devices. So, in the interconnected world of modern computing, communication is also foundation of both network transformation and cybersecurity battleground. Then many of Linux services has been targeted and face constant threats like eavesdropping , spoofing , unauthorized data exfiltration , and they’re also entry points for attacks like man-in-the-middle or port scanning . While firewalls like iptables provide basic perimeter defense, they fall short against encrypted tunnels or privilege escalations. Enter Linux Security Modules (LSM) - the kernel's extensible framework for mandatory access control (MAC) - which embeds security checks directly into network operations. Then I will emphasize on securing network communication based on LSM with special Focus on IPSec . In this post I want to dive deeper into LSM's role in network security, spotli...