lsof: The Tool That Shows You Everything
Master lsof to find port conflicts, trace deleted files eating disk, and debug network connections.
Tag: networking
All the articles with the tag "networking".
Finding the PID of a Process Using a Specific Port in Linux
Something's squatting on port 8080 and you need to know what. ss, netstat, and lsof one-liners to find the PID behind a port fast.
Certificate Pinning: A Secure Connection Guide
Certificate pinning locks your app to a specific TLS cert so MITM attackers can't swap in a rogue CA — how it works and when to use it.
Docker Networking Essential Guide for All Skill Levels
Bridge, host, overlay, macvlan, and none — every Docker network mode explained with real use cases from beginner to production.
WordPress, Docker, NGINX, and MySQL via Ansible
Automate a full WordPress stack deployment — Docker, nginx, and MySQL — using Ansible playbooks instead of clicking through wizards.
How to securely deploy Cloudflare Tunnels
Cloudflare Tunnels expose local services to the internet without open ports — secure setup with zero-trust access controls.
SSH Tunneling: A Secure Conduit for Your Data
SSH tunnels forward ports over encrypted connections — local forwarding, remote forwarding, and dynamic SOCKS proxy explained.