Common

Scanning

Open Port

# Confirm Open Port
nc -v huakunshen.com 80
nc -nv 192.168.1.66 80
# Scan for Open Port
nmap 192.168.1.66
nmap 192.168.1.0/24

Live Hosts

nmap -sP 192.168.1.0/24

See nmap for more detalis

Find Service/Ports

ss -antp
netstat -antp
ss -antp | grep ":80 "			# which service is listening on port 80
sudo netstat -antp | grep ssh	# which port ssh is running on

Reference

• netcat
• nmap