nmapの-OオプションでOS情報をスキャン
sudo nmap 11.11.11.11 -O
Starting Nmap 7.80 ( https://nmap.org ) at 2021-10-02 04:00 JST Nmap scan report for h150-66-46-201.ablenetvps.ne.jp (150.66.46.201) Host is up (0.016s latency). Not shown: 994 filtered ports PORT STATE SERVICE 22/tcp open ssh 80/tcp closed http 443/tcp open https 5555/tcp open freeciv 8080/tcp closed http-proxy 8081/tcp closed blackice-icecap Aggressive OS guesses: Linux 3.10 - 4.11 (94%), Linux 3.2 - 4.9 (91%), Linux 3.13 (90%), Linux 3.13 or 4.2 (90%), Linux 4.10 (90%), Linux 4.2 (90%), Linux 4.4 (90%), Asus RT-AC66U WAP (90%), Linux 3.10 (90%), Linux 3.11 - 3.12 (90%) No exact OS matches for host (test conditions non-ideal). OS detection performed. Please report any incorrect results at https://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 8.67 seconds yuta ~