Ports
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IP
Nmap scan report for ns1.nsroot1.com (156.154.64.172) Host is up (0.00061s latency). rDNS record for 156.154.64.172: pdns172.ultradns.com Not shown: 999 filtered tcp ports (no-response) PORT STATE SERVICE 53/tcp open domain Nmap done: 1 IP address (1 host up) scanned in 4.96 seconds