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 "e"

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Port: 204/UDP
204/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • at-echo
    AppleTalk Echo
    IANA
Port: 213/TCP
213/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • ipx
    IPX
    IANA
  •  
    Internetwork Packet Exchange (IPX) (Official)
    WIKI
  • ipx
    -
    SANS
Port: 213/UDP
213/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • ipx
    IPX
    IANA
  •  
    Internetwork Packet Exchange (IPX) (Official)
    WIKI
  • ipx
    -
    SANS
Port: 257/TCP
257/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • set
    Secure Electronic Transaction
    IANA
  • fw1
    Checkpoint Firewall-1
    SANS
  • threat
    [threat] FW1 logging
    Bekkoame
Port: 257/UDP
257/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • set
    Secure Electronic Transaction
    IANA
Port: 258/TCP
258/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • fw1
    Checkpoint Firewall-1
    SANS
  • threat
    [threat] FW1 Remote control over policy editing.
    Bekkoame
Port: 259/TCP
259/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • esro-gen
    Efficient Short Remote Operations
    IANA
  •  
    ESRO, Efficient Short Remote Operations (Official)
    WIKI
Port: 259/UDP
259/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • esro-gen
    Efficient Short Remote Operations
    IANA
  •  
    ESRO, Efficient Short Remote Operations (Official)
    WIKI
  • cp-config
    Check Point FW-1 Nokia P-1 VPN-1
    SANS
Port: 270/UDP
270/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • gist
    Q-mode encapsulation for GIST messages
    IANA
Port: 309/TCP
309/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • entrusttime
    EntrustTime
    IANA
  • entrusttime
    -
    SANS
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About TCP/UDP ports

TCP port 204 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 204 in the same order in which they were sent. Guaranteed communication over TCP port 204 is the main difference between TCP and UDP. UDP port 204 would not have guaranteed communication as TCP.
UDP on port 204 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 204 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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