Tech Notes / Blog

Projects, thoughts, tutorials, and insights

Port forwarding diagram: a packet crossing a NAT boundary by four routes inward — a router NAT rule, an SSH reverse tunnel, an nftables/iptables rule, and a hosted tunnel CLI

March 17, 2026

Port forwarding: from the router to a hosted tunnel

How I expose a local dev or ops service to the internet: a router NAT rule (MikroTik), SSH reverse tunnels and free relays (pinggy, localhost.run, serveo), nftables/iptables, and ready-made tunnels — localtunnel, cloudflared, ngrok.

Network MikroTik Linux+2

February 14, 2026

Building CUPS for OpenWrt: Bringing a Mikrotik RB2011 Printer to Life

Detailed instructions for building the CUPS package from scratch for MikroTik RB2011 under OpenWrt (cmake, toolchain, opkg)

Network MikroTik