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 "unofficial"

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Port: 15/TCP
15/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  •  
    Unassigned [was netstat]
    IANA
  •  
    Previously netstat service (Unofficial)
    WIKI
  • netstat
    -
    SANS
  • b2
    [trojan] B2
    SANS
Port: 15/UDP
15/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  •  
    Previously netstat service (Unofficial)
    WIKI
Port: 42/TCP
42/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • nameserver
    Host Name Server
    IANA
  •  
    ARPA Host Name Server Protocol (Official)
    WIKI
  •  
    Windows Internet Name Service (Unofficial)
    WIKI
  • threat
    [threat] W32.Dasher
    Bekkoame
Port: 42/UDP
42/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • nameserver
    Host Name Server
    IANA
  •  
    ARPA Host Name Server Protocol (Official)
    WIKI
  •  
    Windows Internet Name Service (Unofficial)
    WIKI
Port: 56/TCP
56/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • xns-auth
    XNS Authentication
    IANA
  •  
    Route Access Protocol (RAP) (Unofficial)
    WIKI
  •  
    XNS (Xerox Network Systems) Authentication (Official)
    WIKI
Port: 56/UDP
56/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • xns-auth
    XNS Authentication
    IANA
  •  
    Route Access Protocol (RAP) (Unofficial)
    WIKI
  •  
    XNS (Xerox Network Systems) Authentication (Official)
    WIKI
Port: 81/TCP
81/TCP - Known port assignments (7 records found)
  • Service
    Details
    Source
  •  
    Torpark - Onion routing (Unofficial)
    WIKI
  •  
    Unassigned
    IANA
  • threat
    [threat] RemoConChubo
    Bekkoame
  • threat
    [threat] W32.Beagle
    Bekkoame
  • threat
    [threat] Xeory
    Bekkoame
  • remoconchubo
    [trojan] RemoConChubo
    SANS
  • trojan
    [trojan] Asylum. Remote Access / Downloading trojan / ICQ trojan / FTP server. Works on Windows 95, 98 and NT. Aliases: Backdoor.Asylum, Asy
    Simovits
Port: 82/UDP
82/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • xfer
    XFER Utility
    IANA
  •  
    Torpark - Control (Unofficial)
    WIKI
Port: 90/TCP
90/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • dnsix
    DNSIX Securit Attribute Token Map
    IANA
  •  
    dnsix (DoD Network Security for Information Exchange) Securit Attribute Token Map (Official)
    WIKI
  •  
    Pointcast (Unofficial)
    WIKI
Port: 90/UDP
90/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • dnsix
    DNSIX Securit Attribute Token Map
    IANA
  •  
    dnsix (DoD Network Security for Information Exchange) Securit Attribute Token Map (Official)
    WIKI
  •  
    Pointcast (Unofficial)
    WIKI
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About TCP/UDP ports

TCP port 15 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 15 in the same order in which they were sent. Guaranteed communication over TCP port 15 is the main difference between TCP and UDP. UDP port 15 would not have guaranteed communication as TCP.
UDP on port 15 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 15 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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