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 "serv"

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Port: 141/UDP
141/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • emfis-cntl
    EMFIS Control Service
    IANA
Port: 149/TCP
149/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • aed-512
    AED 512 Emulation Service
    IANA
Port: 149/UDP
149/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • aed-512
    AED 512 Emulation Service
    IANA
Port: 156/TCP
156/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • sqlsrv
    SQL Service
    IANA
  •  
    SQL Service (Official)
    WIKI
Port: 156/UDP
156/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • sqlsrv
    SQL Service
    IANA
  •  
    SQL Service (Official)
    WIKI
Port: 158/TCP
158/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • pcmail-srv
    PCMail Server
    IANA
  •  
    DMSP, Distributed Mail Service Protocol (Unofficial)
    WIKI
Port: 158/UDP
158/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • pcmail-srv
    PCMail Server
    IANA
  •  
    DMSP, Distributed Mail Service Protocol (Unofficial)
    WIKI
Port: 178/TCP
178/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • nextstep
    NextStep Window Server
    IANA
Port: 178/UDP
178/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • nextstep
    NextStep Window Server
    IANA
Port: 191/TCP
191/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • prospero
    Prospero Directory Service
    IANA
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About TCP/UDP ports

TCP port 141 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 141 in the same order in which they were sent. Guaranteed communication over TCP port 141 is the main difference between TCP and UDP. UDP port 141 would not have guaranteed communication as TCP.
UDP on port 141 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 141 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.
Your IP address
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