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 "q"

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Port: 189/UDP
189/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • qft
    Queued File Transport
    IANA
Port: 209/TCP
209/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • qmtp
    The Quick Mail Transfer Protocol
    IANA
  •  
    The Quick Mail Transfer Protocol (Official)
    WIKI
  • tam
    Trivial Authenticated Mail Protocol
    SANS
Port: 209/UDP
209/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • qmtp
    The Quick Mail Transfer Protocol
    IANA
  •  
    The Quick Mail Transfer Protocol (Official)
    WIKI
  • tam
    Trivial Authenticated Mail Protocol
    SANS
Port: 270/UDP
270/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • gist
    Q-mode encapsulation for GIST messages
    IANA
Port: 368/TCP
368/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • qbikgdp
    QbikGDP
    IANA
  • qbikgdp
    -
    SANS
Port: 368/UDP
368/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • qbikgdp
    QbikGDP
    IANA
  • qbikgdp
    -
    SANS
Port: 458/TCP
458/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • appleqtc
    apple quick time
    IANA
Port: 458/UDP
458/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • appleqtc
    apple quick time
    IANA
Port: 511/TCP
511/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • passgo
    PassGo
    IANA
  • passgo
    -
    SANS
  • threat
    [threat] Part of rootkit t0rn, a program called "leeto's socket daemon" runs at this port.
    Bekkoame
  • t0rnrootkit
    [trojan] T0rn Rootkit
    SANS
  • trojan
    [trojan] T0rn Rootkit. Rootkit. Works on Unix (Linux). Aliases: Torn Rootkit
    Simovits
Port: 554/TCP
554/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • rtsp
    Real Time Streaming Protocol (RTSP)
    IANA
  •  
    Real Time Streaming Protocol (RTSP) (Official)
    WIKI
  • rtsp
    Real Time Streaming Protocol (RTSP). QuickTime Streaming Server (QTSS), streaming media players, AirPlay
    Apple
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About TCP/UDP ports

TCP port 189 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 189 in the same order in which they were sent. Guaranteed communication over TCP port 189 is the main difference between TCP and UDP. UDP port 189 would not have guaranteed communication as TCP.
UDP on port 189 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 189 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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