Deepin Linux

Jul 11, 2025 · Fundamentals

How Conntrack Powers Modern Cloud‑Native Networking and Security

Conntrack, the Linux kernel’s connection tracking subsystem, underpins reliable networking for mobile apps, Kubernetes services, Docker containers, and firewalls by recording five‑tuple states, enabling NAT, stateful packet filtering, and seamless integration with Netfilter and BPF‑based solutions such as Cilium.