Starting Nmap 7.80 ( https://nmap.org ) at 2024-04-27 00:31 EDT Nmap scan report for www.cpe.eng.cmu.ac.th (202.28.24.68) Host is up (0.27s latency). PORT STATE SERVICE VERSION 21/tcp filtered ftp 22/tcp filtered ssh 25/tcp filtered smtp 80/tcp open http nginx 1.18.0 (Ubuntu) 110/tcp filtered pop3 143/tcp filtered imap 443/tcp open ssl/http nginx 1.18.0 (Ubuntu) 445/tcp filtered microsoft-ds Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel Service detection performed. Please report any incorrect results at https://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 28.08 seconds