TCP/UDP Port Finder

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Database updated - March 30, 2016

Search results for "5900"

Port: 5900/TCP
5900/TCP - Known port assignments (7 records found)
  • Service
    Details
    Source
  • vnc-server
    Virtual Network Computing (VNC). Apple Remote Desktop 2.0 or later (Observe/Control feature)
    Apple
  • vnc-server
    (Unregistered Use). Screen Sharing (Mac OS X 10.5 or later)
    Apple
  •  
    Virtual Network Computing (VNC) remote desktop protocol (used by Apple Remote Desktop and others) (Unofficial)
    WIKI
  • rfb
    Remote Framebuffer
    IANA
  • vnc
    Virtual Network Computer
    SANS
  • threat
    [threat] VNC
    Bekkoame
  • threat
    [threat] Evivinc
    Bekkoame
Port: 5900/UDP
5900/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • rfb
    Remote Framebuffer
    IANA
  •  
    Virtual Network Computing (VNC) remote desktop protocol (used by Apple Remote Desktop and others) (Unofficial)
    WIKI

About TCP/UDP ports

TCP port 5900 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 5900 in the same order in which they were sent. Guaranteed communication over TCP port 5900 is the main difference between TCP and UDP. UDP port 5900 would not have guaranteed communication as TCP.

UDP on port 5900 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 5900 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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