Nmap scan report for ns401.adobe.net (66.235.154.10) Host is up (0.00051s latency). Not shown: 999 filtered tcp ports (no-response) PORT STATE SERVICE VERSION 53/tcp open domain (unknown banner: adbres) | fingerprint-strings: | DNSVersionBindReqTCP: | version | bind |_ adbres | dns-nsid: | NSID: \x01r (0172) | id.server: adbres |_ bind.version: adbres 1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at https://nmap.org/cgi-bin/submit.cgi?new-service : SF-Port53-TCP:V=7.92%I=7%D=7/6%Time=686AFCE2%P=x86_64-redhat-linux-gnu%r(D SF:NSVersionBindReqTCP,33,"\x001\0\x06\x81\0\0\x01\0\x01\0\0\0\0\x07versio SF:n\x04bind\0\0\x10\0\x03\xc0\x0c\0\x10\0\x03\0\0\0\0\0\x07\x06adbres"); Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port OS fingerprint not ideal because: Missing a closed TCP port so results incomplete No OS matches for host Network Distance: 7 hops TRACEROUTE (using port 53/tcp) HOP RTT ADDRESS 1 8.53 ms 208.76.251.177.rdns.ColocationAmerica.com (208.76.251.177) 2 0.52 ms gw.mcom-colocationamerica.com (208.64.231.81) 3 0.83 ms r2b4.n1.p1401.lax.multacom.net (64.69.46.11) 4 1.08 ms 206.72.211.146.any2ix.coresite.com (206.72.211.146) 5 ... 6 7 0.55 ms ns401.adobe.net (66.235.154.10) OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 32.13 seconds