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 "listening"

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Port: 641/TCP
641/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • repcmd
    repcmd
    IANA
  •  
    SupportSoft Nexus Remote Command (control/listening): A proxy gateway connecting remote control traffic (Official)
    WIKI
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 641/UDP
641/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • repcmd
    repcmd
    IANA
  •  
    SupportSoft Nexus Remote Command (control/listening): A proxy gateway connecting remote control traffic (Official)
    WIKI
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 1050/TCP
1050/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • cma
    CORBA Management Agent
    IANA
  • threat
    [threat] MiniCommand
    Bekkoame
  • piranha
    [threat] Heartbeat listening port on the primary and backup routers in this load-balancing package for Linux.
    Bekkoame
  • minicommand
    [trojan] MiniCommand
    SANS
Port: 1521/UDP
1521/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ncube-lm
    nCube License Manager
    IANA
  • threat
    [threat] Oracle SQL defaults to listening at this port (SQL*Net v2.x)
    Bekkoame
Port: 1521/TCP
1521/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • ncube-lm
    nCube License Manager
    IANA
  •  
    nCube License Manager (Unofficial)
    WIKI
  •  
    Oracle database default listener, in future releases official port 2483 (Official)
    WIKI
  • oracle
    Oracle 8 SQL (default)
    SANS
  • threat
    [threat] Oracle SQL defaults to listening at this port (SQL*Net v2.x)
    Bekkoame
Port: 1887/TCP
1887/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • filex-lport
    FileX Listening Port
    IANA
Port: 1887/UDP
1887/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • filex-lport
    FileX Listening Port
    IANA
Port: 2483/TCP
2483/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ttc
    Oracle TTC
    IANA
  •  
    Oracle database listening for unsecure client connections to the listener, replaces port 1521 (Official)
    WIKI
Port: 2483/UDP
2483/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • ttc
    Oracle TTC
    IANA
  •  
    Oracle database listening for unsecure client connections to the listener, replaces port 1521 (Official)
    WIKI
  • ttc
    Oracel TTC
    SANS
Port: 2484/TCP
2484/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ttc-ssl
    Oracle TTC SSL
    IANA
  •  
    Oracle database listening for SSL client connections to the listener (Official)
    WIKI
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About TCP/UDP ports

TCP port 641 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 641 in the same order in which they were sent. Guaranteed communication over TCP port 641 is the main difference between TCP and UDP. UDP port 641 would not have guaranteed communication as TCP.
UDP on port 641 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 641 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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