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 "at"

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Port: 2419/TCP
2419/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • attachmate-s2s
    Attachmate S2S
    IANA
Port: 2812/TCP
2812/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • atmtcp
    atmtcp
    IANA
Port: 2812/UDP
2812/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • atmtcp
    atmtcp
    IANA
Port: 3505/TCP
3505/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ccmcomm
    CCM communications port
    IANA
  • trojan
    [trojan] AutoSpY. Anti-protection trojan / Remote Access / Worm / Network trojan / DoS tool / Telnet server / Virus dropper / Prank trojan. Works on Windows 95 and 98, together with MS Outlook. At least on version 1.2 Apocalipse, Telnet can be used as client. Aliases: AntiSpy, Backdoor.AntiSpy, Backdoor.AutoSpy
    Simovits
Port: 3520/TCP
3520/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • galileolog
    Netvion Galileo Log Port
    IANA
  • threat
    [threat] Outgoing TCP attempts to these ports could be trying to contact netrek metaservers. See also port 3521.
    Bekkoame
Port: 3617/TCP
3617/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • sharp-server
    ATI SHARP Logic Engine
    IANA
Port: 3617/UDP
3617/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • sharp-server
    ATI SHARP Logic Engine
    IANA
Port: 3821/TCP
3821/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • pmcp
    ATSC PMCP Standard
    IANA
Port: 3821/UDP
3821/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • pmcp
    ATSC PMCP Standard
    IANA
Port: 3965/UDP
3965/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ati-ip-to-ncpe
    Avanti IP to NCPE API
    IANA
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About TCP/UDP ports

TCP port 2419 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 2419 in the same order in which they were sent. Guaranteed communication over TCP port 2419 is the main difference between TCP and UDP. UDP port 2419 would not have guaranteed communication as TCP.
UDP on port 2419 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 2419 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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