Versatile networking utility that can establish and interact with TCP or UDP connections
Syntax
nc IP port #Simple Banner grab ?Does a simple connection to a server's service, just a "hi" and service talks back and gives us "its name"
nc -nv IP port #Banner grab without DNS resolution (-n) better when working only with IPs and verbose (-v) for detailed output info
nc -lvnp port #Listen on a port ?-l puts on listen mode | -v verbose, so that we know when the connection is made | -n disable DNS resolution and connect only to raw IP to speed up connection | -p to specify the port next to it
