network

List open ports Using Netstat Command The flag -l tells netstat to print all listening sockets, -t shows all TCP connections, -u displays all UDP connections and -p enables printing of application/program name listening on the port. To print numeric values rather than service names, add the -n flag. netstat -ltup Using ss Command ss -lntu Using Nmap Command Installation apt install nmap [On Debian/Ubuntu] […]