Small, simple utility written in Go that scans a TCP service by using the half-open syn scanning method.

git clone https://github.com/hoenirvili/syn-scan
cd syn-scan
go build
sudo ./syn-scan google.com 80 # Should return open

1. Why not use nmap?

Of course use nmap, there's not any single reason to not use nmap instead of this.

2. Why you wrote this?

For fun tbh and I wanted to see how hard is to craft hand made packets and send them over the wire using Go as a language