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 "nic"

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Port: 43/UDP
43/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • nicname
    Who Is
    IANA
  • whois
    nicname
    SANS
Port: 43/TCP
43/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • nicname
    Who Is
    IANA
  •  
    WHOIS protocol (Official)
    WIKI
  • whois
    nicname
    SANS
Port: 101/TCP
101/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • hostname
    NIC Host Name Server
    IANA
  •  
    NIC host name (Official)
    WIKI
  • threat
    [threat] Udps
    Bekkoame
  • trojan
    [trojan] Skun. Remote Access / Destructive trojan. Works on Windows. Aliases: Backdoor.Skun
    Simovits
Port: 101/UDP
101/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • hostname
    NIC Host Name Server
    IANA
  • threat
    [threat] Udps
    Bekkoame
Port: 1095/TCP
1095/TCP - Known port assignments (6 records found)
  • Service
    Details
    Source
  • nicelink
    NICELink
    IANA
  • threat
    [threat] Remote Administration Tool - RAT
    Bekkoame
  • rat
    [trojan] Remote Administration Tool - RAT
    SANS
  • trojan
    [trojan] Blood Fest Evolution. Remote Access / Steals passwords / AOL trojan / AIM trojan / Eavesdropper. Works on Windows 95, 98 and NT, together with AOL and AIM. Aliases: BFEvolution, Backdoor.HVL-Rat, Backdoor.Evolution
    Simovits
  • trojan
    [trojan] Hvl RAT. Remote Access. Works on Windows 95,98 and NT. Aliases: Backdoor.HVL-Rat
    Simovits
  • trojan
    [trojan] Remote Administration Tool - RAT. Remote Access / AOL trojan. Works on Windows 95, 98 and ME. Also works on Unix (Linux and FreeBSD). RAT server 1.1 has IRC support added. Send.tgz is Unix client. Aliases: Backdoor.RAT, RAT
    Simovits
Port: 1095/UDP
1095/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • nicelink
    NICELink
    IANA
Port: 1458/UDP
1458/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • nrcabq-lm
    Nichols Research Corp.
    IANA
Port: 1458/TCP
1458/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • nrcabq-lm
    Nichols Research Corp.
    IANA
Port: 2556/UDP
2556/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • nicetec-nmsvc
    nicetec-nmsvc
    IANA
  • threat
    [threat] W32.Beagle
    Bekkoame
Port: 2556/TCP
2556/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • nicetec-nmsvc
    nicetec-nmsvc
    IANA
  • bagle-backdoor
    Bagle Virus Backdoor
    SANS
  • threat
    [threat] W32.Beagle
    Bekkoame
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About TCP/UDP ports

TCP port 43 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 43 in the same order in which they were sent. Guaranteed communication over TCP port 43 is the main difference between TCP and UDP. UDP port 43 would not have guaranteed communication as TCP.
UDP on port 43 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 43 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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