A SIM PIN on an iPhone is a short code that locks the cellular SIM so the phone number cannot be used until the PIN is entered. It is separate from the iPhone passcode, Face ID, and Apple ID password. A device passcode protects the phone’s data. A SIM PIN protects the mobile line from […]...

Use OpenVPN on UDP port 1194 when you want a proven default, but use WireGuard on UDP port 51820 when you want simpler setup, lower overhead, and faster handshakes. If a network blocks VPN traffic, switch OpenVPN to TCP 443 or run WireGuard on a common UDP port such as 53, 123, or 443, depending […]...

Use curl when you need a fast file upload from the terminal. Use HTTPie when you want the same job to feel nicer to read. Use Postman, Insomnia, Bruno, or similar tools when you need saved requests, team sharing, and test flows. TLDR: curl is the reliable pocket knife for file uploads, especially in scripts […]...