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 "ud"

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Port: 10/UDP
10/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
Port: 11/UDP
11/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • systat
    Active Users
    IANA
  •  
    Active Users (systat service) (Official)
    WIKI
Port: 12/UDP
12/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
Port: 13/UDP
13/UDP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • daytime
    Daytime
    IANA
  •  
    Daytime Protocol (RFC 867) (Official)
    WIKI
  • daytime
    Daytime (RFC 867)
    Bekkoame
  • daytime
    -
    SANS
Port: 14/UDP
14/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
Port: 15/UDP
15/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  •  
    Previously netstat service (Unofficial)
    WIKI
Port: 16/UDP
16/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
Port: 17/UDP
17/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • qotd
    Quote of the Day
    IANA
  •  
    Quote of the Day (Official)
    WIKI
Port: 18/UDP
18/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • msp
    Message Send Protocol (historic)
    IANA
  •  
    Message Send Protocol (Official)
    WIKI
Port: 19/UDP
19/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • chargen
    Character Generator
    IANA
  •  
    Character Generator Protocol (CHARGEN) (Official)
    WIKI
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About TCP/UDP ports

TCP port 10 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 10 in the same order in which they were sent. Guaranteed communication over TCP port 10 is the main difference between TCP and UDP. UDP port 10 would not have guaranteed communication as TCP.
UDP on port 10 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 10 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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