Nmap scan report for map3.daumcdn.net (121.53.92.17) Host is up (0.14s latency). Not shown: 998 filtered tcp ports (no-response) PORT STATE SERVICE VERSION 80/tcp open http |_http-title: Site doesn't have a title. | fingerprint-strings: | FourOhFourRequest: | HTTP/1.1 400 Bad Request | Date: Thu, 11 Sep 2025 00:03:03 GMT | Content-Type: text/html | Connection: close | | | | |

400 Bad Request

| | | GenericLines: | HTTP/1.1 400 Bad Request | Date: Thu, 11 Sep 2025 00:03:04 GMT | Content-Type: text/html | Connection: close | | | | |

400 Bad Request

| | | GetRequest: | HTTP/1.1 400 Bad Request | Date: Thu, 11 Sep 2025 00:02:57 GMT | Content-Type: text/html | Connection: close | | | | |

400 Bad Request

| | | HTTPOptions, RTSPRequest: | HTTP/1.1 400 Bad Request | Date: Thu, 11 Sep 2025 00:02:58 GMT | Content-Type: text/html | Connection: close | | | | |

400 Bad Request

| | | SIPOptions: | HTTP/1.1 400 Bad Request | Date: Thu, 11 Sep 2025 00:04:08 GMT | Content-Type: text/html | Connection: close | | | | |

400 Bad Request

| |_ 443/tcp open ssl/http nginx |_http-title: Site doesn't have a title. | ssl-cert: Subject: commonName=*.daumcdn.net/organizationName=Kakao Corp./stateOrProvinceName=Jeju-do/countryName=KR | Subject Alternative Name: DNS:*.daumcdn.net, DNS:daumcdn.net | Not valid before: 2025-01-02T00:00:00 |_Not valid after: 2026-01-30T23:59:59 |_ssl-date: TLS randomness does not represent time | tls-alpn: | h2 | http/1.1 | http/1.0 |_ http/0.9 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-Port80-TCP:V=7.92%I=7%D=9/10%Time=68C211B2%P=x86_64-redhat-linux-gnu%r( SF:GetRequest,B8,"HTTP/1\.1\x20400\x20Bad\x20Request\r\nDate:\x20Thu,\x201 SF:1\x20Sep\x202025\x2000:02:57\x20GMT\r\nContent-Type:\x20text/html\r\nCo SF:nnection:\x20close\r\n\r\n\r\n\r\n\r\n\r\n

4 SF:00\x20Bad\x20Request

\r\n\r\n\r\n")%r(HTTPOptions,B8," SF:HTTP/1\.1\x20400\x20Bad\x20Request\r\nDate:\x20Thu,\x2011\x20Sep\x20202 SF:5\x2000:02:58\x20GMT\r\nContent-Type:\x20text/html\r\nConnection:\x20cl SF:ose\r\n\r\n\r\n\r\n\r\n\r\n

400\x20Bad\x20Re SF:quest

\r\n\r\n\r\n")%r(RTSPRequest,B8,"HTTP/1\.1\x2040 SF:0\x20Bad\x20Request\r\nDate:\x20Thu,\x2011\x20Sep\x202025\x2000:02:58\x SF:20GMT\r\nContent-Type:\x20text/html\r\nConnection:\x20close\r\n\r\n\r\n\r\n\r\n\r\n

400\x20Bad\x20Request

\r\n\r\n\r\n")%r(FourOhFourRequest,B8,"HTTP/1\.1\x20400\x20Bad\ SF:x20Request\r\nDate:\x20Thu,\x2011\x20Sep\x202025\x2000:03:03\x20GMT\r\n SF:Content-Type:\x20text/html\r\nConnection:\x20close\r\n\r\n\r\n\r\n\r\n\r\n

400\x20Bad\x20Request

\r\n\r\n SF:\r\n")%r(GenericLines,B8,"HTTP/1\.1\x20400\x20Bad\x20Request\r\n SF:Date:\x20Thu,\x2011\x20Sep\x202025\x2000:03:04\x20GMT\r\nContent-Type:\ SF:x20text/html\r\nConnection:\x20close\r\n\r\n\r\n\r\n SF:\r\n\r\n

400\x20Bad\x20Request

\r\n\r\n\r\n")% SF:r(SIPOptions,B8,"HTTP/1\.1\x20400\x20Bad\x20Request\r\nDate:\x20Thu,\x2 SF:011\x20Sep\x202025\x2000:04:08\x20GMT\r\nContent-Type:\x20text/html\r\n SF:Connection:\x20close\r\n\r\n\r\n\r\n\r\n\r\n

400\x20Bad\x20Request

\r\n\r\n\r\n"); Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port Device type: general purpose|specialized Running (JUST GUESSING): FreeBSD 11.X (88%), Crestron 2-Series (85%) OS CPE: cpe:/o:freebsd:freebsd:11.1 cpe:/o:crestron:2_series Aggressive OS guesses: FreeBSD 11.1-STABLE (88%), Crestron XPanel control system (85%), FreeBSD 11.2-RELEASE - 11.3 RELEASE or 11.2-STABLE (85%) No exact OS matches for host (test conditions non-ideal). Network Distance: 13 hops TRACEROUTE (using port 443/tcp) HOP RTT ADDRESS 1 0.42 ms 208.76.251.177.rdns.ColocationAmerica.com (208.76.251.177) 2 0.64 ms gw.mcom-colocationamerica.com (208.64.231.81) 3 0.69 ms r1b4.n1p1400.lax.multacom.net (64.69.46.9) 4 ... 5 1.06 ms be3271.ccr41.lax04.atlas.cogentco.com (154.54.42.102) 6 0.71 ms pccw.lax04.atlas.cogentco.com (154.54.10.190) 7 104.48 ms BE42.br05.tok02.as3491.net (63.218.250.90) 8 107.09 ms KaoKao-Te0-0-0-30-2-485.br05.tok02.as3491.net (63.216.242.174) 9 ... 12 13 128.15 ms 121.53.92.17 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 173.47 seconds