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 "connection"

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Port: 21847/TCP
21847/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • netspeak-cs
    NetSpeak Corp. Connection Services
    IANA
Port: 22793/TCP
22793/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • threat
    [threat] VocalTec Internet Phone TCP connection to VocalTec's Addressing servers.
    Bekkoame
Port: 25000/TCP
25000/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • icl-twobase1
    icl-twobase1
    IANA
  •  
    Teamware Office standard client connection (Official)
    WIKI
Port: 60411/TCP
60411/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  •  
    Dynamic and/or Private Ports
    IANA
  •  
    Xsan. Xsan Filesystem Access
    Apple
  • threat
    [threat] Connection
    Bekkoame
  • connection
    [trojan] Connection
    SANS
  • trojan
    [trojan] Connection. Remote Access / Steals passwords / Virus dropper / Virus. Works on Windows 95, 98, ME, NT and 2000.
    Simovits
Port: 62523/UDP
62523/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  •  
    Dynamic and/or Private Ports
    IANA
  • threat
    [threat] Connection Manager to Cisco Systems, Inc. VPN Service
    Bekkoame
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About TCP/UDP ports

TCP port 21847 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 21847 in the same order in which they were sent. Guaranteed communication over TCP port 21847 is the main difference between TCP and UDP. UDP port 21847 would not have guaranteed communication as TCP.
UDP on port 21847 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 21847 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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