sudo apt install nmap
sudo dnf install nmap
sudo pacman -s nmap
brew install nmap
nmap <host>
~ > % nmap 192.168.1.1 Starting Nmap 7.94 ( https://nmap.org ) at 2023-05-31 10:20 MSK Nmap scan report for 192.168.1.1 Host is up (0.0027s latency). Not shown: 993 closed tcp ports (conn-refused) PORT STATE SERVICE 53/tcp open domain 80/tcp open http 443/tcp open https Nmap done: 1 IP address (1 host up) scanned in 7.39 seconds
nmap <host> -p <port>
~ > % nmap 192.168.1.1 -p 9092 Starting Nmap 7.94 ( https://nmap.org ) at 2023-05-31 10:23 MSK Nmap scan report for 192.168.1.1 Host is up (0.0076s latency). PORT STATE SERVICE 9092/tcp closed XmlIpcRegSvc Nmap done: 1 IP address (1 host up) scanned in 0.88 seconds