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 "syste"

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Port: 246/UDP
246/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • dsp3270
    Display Systems Protocol
    IANA
Port: 384/TCP
384/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • arns
    A Remote Network Server System
    IANA
  •  
    A Remote Network Server System (Official)
    WIKI
Port: 384/UDP
384/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • arns
    A Remote Network Server System
    IANA
  •  
    A Remote Network Server System (Official)
    WIKI
Port: 393/TCP
393/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • meta5
    Meta5
    IANA
  • dis
    Data Interpretation System
    SANS
Port: 393/UDP
393/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • meta5
    Meta5
    IANA
  • dis
    Data Interpretation System
    SANS
Port: 475/TCP
475/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • tcpnethaspsrv
    tcpnethaspsrv
    IANA
  •  
    tcpnethaspsrv (Aladdin Knowledge Systems Hasp services, TCP/IP version) (Official)
    WIKI
  • tcpnethaspsrv
    -
    SANS
  • threat
    [threat] SCO Unizware 7 default installation includes an HTTP server running on this port for the scohelp; service.
    Bekkoame
Port: 475/UDP
475/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • tcpnethaspsrv
    tcpnethaspsrv
    IANA
  •  
    tcpnethaspsrv (Aladdin Knowledge Systems Hasp services, TCP/IP version) (Official)
    WIKI
  • tcpnethaspsrv
    -
    SANS
Port: 500/UDP
500/UDP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • isakmp
    isakmp
    IANA
  •  
    Internet Security Association and Key Management Protocol (ISAKMP) (Official)
    WIKI
  • isakmp
    VPN Key Exchange
    SANS
  • isakmp
    ISAKMP/IKE. Mac OS X Server VPN service, Back to My Mac (MobileMe, Mac OS X v10.5 or later).
    Apple
  • threat
    [threat] Cisco Systems
    Bekkoame
Port: 504/TCP
504/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • citadel
    citadel
    IANA
  •  
    Citadel - multiservice protocol for dedicated clients for the Citadel groupware system (Official)
    WIKI
  • citadel
    -
    SANS
Port: 504/UDP
504/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • citadel
    citadel
    IANA
  •  
    Citadel - multiservice protocol for dedicated clients for the Citadel groupware system (Official)
    WIKI
  • citadel
    -
    SANS
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About TCP/UDP ports

TCP port 246 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 246 in the same order in which they were sent. Guaranteed communication over TCP port 246 is the main difference between TCP and UDP. UDP port 246 would not have guaranteed communication as TCP.
UDP on port 246 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 246 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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