Realizar un escaneo de puertos básico (nmap -F srt.com)
Nmap scan report for srt.com (216.221.96.44)
Host is up (0.071s latency).
All 100 scanned ports on srt.com (216.221.96.44) are filtered
Nmap done: 1 IP address (1 host up) scanned in 4.50 seconds