scan tcp/udp network ports to check status [open/unavailable/in-use]
I wrote this to mainly benchmark Go's concurrency.
--> scanning 65000 ports in a single process
Duration: 3.6s <avg>
--> scanning with multiple processes [100 goroutines ==> 1 goroutine/650 ports]
Duration: 580ms <avg>Usage 📝
$ go run main.go --protocol tcp // scan all ports
$ go run main.go --port 5432 --protocol udp // scan single port