TCP/UDP Port Finder

Enter port number (e.g. 21), service (e.g. ssh, ftp) or threat (e.g. nimda)
Database updated - March 30, 2016

Search results for "domain"

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Port: 53/UDP
53/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • domain
    Domain Name Server
    IANA
  •  
    Domain Name System (DNS) (Official)
    WIKI
  • domain
    Domain Name System (DNS). MacDNS, FaceTime
    Apple
Port: 53/TCP
53/TCP - Known port assignments (11 records found)
  • Service
    Details
    Source
  • domain
    Domain Name System (DNS). MacDNS, FaceTime
    Apple
  •  
    Domain Name System (DNS) (Official)
    WIKI
  • domain
    Domain Name Server
    IANA
  • threat
    [threat] W32.Dasher
    Bekkoame
  • threat
    [threat] W32.Spybot
    Bekkoame
  • trojan
    [trojan] ADM worm. Worm / Rootkit / Backdoor. Works on Unix (Linux). Affects Linux RedHat 4.0 to 5.2. Aliases: ADM Inet w0rm, Linux.ADM.Worm
    Simovits
  • trojan
    [trojan] li0n. Worm / Steals passwords / Rootkit dropper / Hacking tool / Distributed DoS tool. Works on Unix (Linux), together with BIND 8.2. Aliases: The Lion worm, Linux/Lion, 1i0n, Lion
    Simovits
  • trojan
    [trojan] MscanWorm.
    Simovits
  • trojan
    [trojan] MuSka52. Remote Access / Keylogger / Steals passwords / ICQ trojan / AIM trojan. Works on Windows, together with AOL's Messanger AIM. Aliases: Backdoor.QT, BackDoor.Muska, M52
    Simovits
  • threat
    [threat] Civcat
    Bekkoame
  • threat
    [threat] Esteems
    Bekkoame
Port: 445/TCP
445/TCP - Known port assignments (38 records found)
  • Service
    Details
    Source
  •  
    Microsoft-DS Active Directory, Windows shares (Official)
    WIKI
  •  
    Microsoft-DS SMB file sharing (Official)
    WIKI
  • microsoft-ds
    Win2k+ Server Message Block
    SANS
  • microsoft-ds
    Microsoft SMB Domain Server.
    Apple
  • microsoft-ds
    Microsoft-DS
    IANA
  • threat
    [threat] W32.Aizu
    Bekkoame
  • threat
    [threat] W32.Bobax
    Bekkoame
  • threat
    [threat] W32.Bolgi.Worm
    Bekkoame
  • threat
    [threat] W32.Cissi
    Bekkoame
  • threat
    [threat] W32.Cycle
    Bekkoame
  • threat
    [threat] W32.Explet
    Bekkoame
  • threat
    [threat] W32.HLLW.Deborms
    Bekkoame
  • threat
    [threat] W32.HLLW.Deloder
    Bekkoame
  • threat
    [threat] W32.HLLW.Gaobot
    Bekkoame
  • threat
    [threat] W32.HLLW.Lioten
    Bekkoame
  • threat
    [threat] W32.HLLW.Moega
    Bekkoame
  • threat
    [threat] W32.HLLW.Nebiwo
    Bekkoame
  • threat
    [threat] W32.HLLW.Polybot
    Bekkoame
  • threat
    [threat] W32.Ifbo
    Bekkoame
  • threat
    [threat] W32.Janx
    Bekkoame
  • threat
    [threat] W32.Kibuv.Worm
    Bekkoame
  • threat
    [threat] W32.Kiman
    Bekkoame
  • threat
    [threat] W32.Korgo
    Bekkoame
  • threat
    [threat] W32.Mytob
    Bekkoame
  • threat
    [threat] W32.Reatle
    Bekkoame
  • threat
    [threat] W32.Sasser
    Bekkoame
  • threat
    [threat] W32.Scane
    Bekkoame
  • threat
    [threat] W32.Slackor
    Bekkoame
  • threat
    [threat] W32.Spybot
    Bekkoame
  • threat
    [threat] W32.Wallz
    Bekkoame
  • threat
    [threat] W32.Welchia
    Bekkoame
  • threat
    [threat] W32.Yaha, Randex
    Bekkoame
  • threat
    [threat] W32.Zotob
    Bekkoame
  • trojan
    [trojan] Nimda. Virus / Worm / Mail trojan / Network trojan / Hacking tool. Works on Windows 95, 98, ME, NT, 2000 and XP, together with MS Internet Information Server (IIS), MS Internet Explorer 5.5 SP1, MS Outlook , MS Outlook Express and MS Word. Aliases: Concept Virus (CV) v.5, W32.Nimda, Minda, W32.Minda, I-Worm.Nimda, Code Rainbow , PE_Nimda.A, CV-5
    Simovits
  • threat
    [threat] Netdepix
    Bekkoame
  • threat
    [threat] Otinet
    Bekkoame
  • threat
    [threat] Rtkit
    Bekkoame
  • threat
    [threat] Secefa
    Bekkoame
Port: 513/TCP
513/TCP - Known port assignments (6 records found)
  • Service
    Details
    Source
  • login
    remote login a la telnet; automatic authentication performed based on priviledged port numbers and distributed data bases which identify "authentication domains"
    IANA
  •  
    rlogin (Official)
    WIKI
  • login
    BSD rlogind(8)
    SANS
  • threat
    [threat] Grlogin
    Bekkoame
  • grlogin
    [trojan] Grlogin
    SANS
  • trojan
    [trojan] ADM worm. Worm / Rootkit / Backdoor. Works on Unix (Linux). Affects Linux RedHat 4.0 to 5.2. Aliases: ADM Inet w0rm, Linux.ADM.Worm
    Simovits
Port: 700/TCP
700/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • epp
    Extensible Provisioning Protocol
    IANA
  •  
    EPP (Extensible Provisioning Protocol), a protocol for communication between domain name registries and registrars (RFC 5734) (Official)
    WIKI
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
  • buddyphone
    [threat] This Internet telephony product communicates over this port as well as the TCP range 5000-5111.
    Bekkoame
  • trojan
    [trojan] REx. Remote Access, works on Windows.
    Simovits
Port: 848/TCP
848/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • gdoi
    GDOI
    IANA
  •  
    Group Domain Of Interpretation (GDOI) protocol (Official)
    WIKI
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 848/UDP
848/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • gdoi
    GDOI
    IANA
  •  
    Group Domain Of Interpretation (GDOI) protocol (Official)
    WIKI
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 953/UDP
953/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    Domain Name System (DNS) RNDC Service (Unofficial)
    WIKI
  •  
    Unassigned
    IANA
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 953/TCP
953/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    Domain Name System (DNS) RNDC Service (Unofficial)
    WIKI
  •  
    Unassigned
    IANA
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 1308/TCP
1308/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • odsi
    Optical Domain Service Interconnect (ODSI)
    IANA
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About TCP/UDP ports

TCP port 53 uses the Transmission Control Protocol. TCP is one of the main protocols in TCP/IP networks. TCP is a connection-oriented protocol, it requires handshaking to set up end-to-end communications. Only when a connection is set up user's data can be sent bi-directionally over the connection.
Attention! TCP guarantees delivery of data packets on port 53 in the same order in which they were sent. Guaranteed communication over TCP port 53 is the main difference between TCP and UDP. UDP port 53 would not have guaranteed communication as TCP.
UDP on port 53 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 53 thinks that error checking and correction is not necessary or performed in the application, avoiding the overhead of such processing at the network interface level.
UDP (User Datagram Protocol) is a minimal message-oriented Transport Layer protocol (protocol is documented in IETF RFC 768).
Application examples that often use UDP: voice over IP (VoIP), streaming media and real-time multiplayer games. Many web applications use UDP, e.g. the Domain Name System (DNS), the Routing Information Protocol (RIP), the Dynamic Host Configuration Protocol (DHCP), the Simple Network Management Protocol (SNMP).
TCP vs UDP - TCP: reliable, ordered, heavyweight, streaming; UDP - unreliable, not ordered, lightweight, datagrams.
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