Network useful commands

Detect services and ports

  • Linux

    nmap -sn <ip_address>  # ip alive? 
nmap -sn -Pn <ip_address> # Check for all host online if ip alive
netstat -tulpn # check your network services udp tcp
ss -nlptau # check your network services udp tcp
route -n # gateway, ip 
ip a # network interfaces
ip route show or route
sudo ufw enable # disable or status
sudo ufw deny from <ip_address> to any port 80
sudo ufw deny from <ip_address> to any

  • Windows

    netstat -an # check services and port
netsh firewall show state # check firewall state
netsh firewall show config # check firewall configuration