Step-by-step guides for sysadmins and DevOps engineers running production infrastructure.
Connect your homelab router to a free live BGP full-table feed and learn RPKI, path selection, communities, and filtering with BIRD2 or FRRouting — using the actual Default-Free Zone table that real ISP routers carry.
CVE-2026-46333 lets unprivileged users steal SSH host keys and shadow passwords. Here is how to patch, mitigate, rotate keys, and audit for breach.
How to lock down your wazuh cluster in 2026 after CVE-2026-25769 and CVE-2026-30893 — five concrete hardening steps for production deployments.