netcat for banner grabbing and port scanning

so you all must know about netcat right? netcat is a simple Unix utility which reads and writes data across network connections, using TCP or UDP protocol. netcat can be use many thing from backdoor , chat, banner grabbing and also port scanning. but today i'm going to give a tutorial how to use netcat to banner grabbing and port scanning.

banner grabbing

so i use windows xp and it's already install netcat

as you can see the netcat retrieved back what server that they actually use but this kinda method its not really stealth because it will restore at the log server.

port scanning:
netcat can also be use for port scanning even though is not really sophisticated as nmap but netcat can be your alternative use

type "nc -v -w 1 target ip address -z range port"
-v=verbose
-w=timeout for connect
-z =for the range of port

as you can see some port will be closed inidicate with timeout and open port indicate with open

have a nice day ^_^