seccomp-engineering

To create a minimal seccomp filter, profile your target binary with strace to enumerate required syscalls, then craft an allowlist and apply it via prctl or systemd's SystemCallFilter to enforce a default-deny posture.

Yes, seccomp filtering works alongside SELinux and namespaces. You can apply runtime hardening for services and container runtimes to minimize the kernel attack surface while maintaining existing namespace isolation.

Architecture-aware seccomp policies are designed by building deterministic failure modes into your allowlists. You apply argument filtering to restrict syscall parameters while documenting high-risk syscalls that require careful evaluation.

The best way to audit existing seccomp policies is to verify they enforce a deny-by-default posture. Check that systemd units and daemons use minimal allowlists and apply argument filtering to restrict high-risk syscalls.

Yes, you can enforce a default-deny syscall policy in container runtimes using seccomp. This reduces the kernel attack surface by ensuring processes can only execute the minimal set of explicitly allowed system calls.