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 "link"

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Port: 87/TCP
87/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  •  
    any private terminal link
    IANA
  • priv-term-l
    any private terminal link ttylink
    SANS
Port: 87/UDP
87/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  •  
    any private terminal link
    IANA
Port: 113/TCP
113/TCP - Known port assignments (20 records found)
  • Service
    Details
    Source
  • auth
    Authentication Service
    IANA
  •  
    ident - Authentication Service/Identification Protocol, used by IRC servers to identify users (Official)
    WIKI
  • ident
    -
    Bekkoame
  • auth
    ident tap Authentication Service
    SANS
  • ident
    Identification Protocol.
    Apple
  • threat
    [threat] W32.Bofra
    Bekkoame
  • threat
    [threat] W32.Korgo
    Bekkoame
  • threat
    [threat] W32.Linkbot
    Bekkoame
  • threat
    [threat] W32.Mydoom
    Bekkoame
  • threat
    [threat] W32.Spybot
    Bekkoame
  • trojan
    [trojan] Dosh. Remote Access. Works on Windows. Aliases: Backdoor.Dosh
    Simovits
  • trojan
    [trojan] Gibbon. Works on Windows. Aliases: Backdoor.Gibbon, Ders, Backdoor.Ders, Delf.E, War Gibbon
    Simovits
  • trojan
    [trojan] Taskman. Remote Access / IRC trojan / DoS tool. Works on Windows 95, 98 and NT, together with an IRC software. Aliases: Trojan.PSW.Taskman, Task Manager, Tasm, Backdoor.Tasmer, Narnar, W32.Tasmer.A, IRC/Randy, Randy, Tasmer
    Simovits
  • trojan
    [trojan] ADM worm. Worm / Rootkit / Backdoor. Works on Unix (Linux). Affects Linux RedHat 4.0 to 5.2. Aliases: ADM Inet w0rm, Linux.ADM.Worm
    Simovits
  • trojan
    [trojan] Alicia. Remote Access / IRC trojan. Works on Windows. Aliases: Backdoor.Alicia
    Simovits
  • trojan
    [trojan] Cyn. Remote Access / Downloading trojan / Port scanner. Works on Windows. Aliases: Backdoor.Cyn, Backdoor.PB
    Simovits
  • trojan
    [trojan] DataSpy Network X. Remote Access / Keylogger / Downloading trojan / Port scanner / DoS tool / IRC trojan / Port proxy / Hacking tool / Destructive trojan. Works on Windows. Aliases: DSNX, Win32.DSNX, Backdoor.DSNX, BackDoor.UK, Trojan.Win32.DSNX, Troj/Dsnx
    Simovits
  • threat
    [threat] Invisible Identd Deamon
    Bekkoame
  • threat
    [threat] Kazimas
    Bekkoame
  • threat
    [threat] Randex
    Bekkoame
Port: 245/TCP
245/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • link
    LINK
    IANA
  • link
    -
    SANS
Port: 245/UDP
245/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • link
    LINK
    IANA
  • link
    -
    SANS
Port: 264/TCP
264/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • bgmp
    BGMP
    IANA
  •  
    BGMP, Border Gateway Multicast Protocol (Official)
    WIKI
  • bgmp
    -
    SANS
  • threat
    [threat] FW1_topo FW1 can be flooded on this port in order to cause CPU utilization to reach 100% and stopping managers from connecting. However, it requires a fast link and access to that port, probably from the local network.
    Bekkoame
Port: 281/TCP
281/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • personal-link
    Personal Link
    IANA
  • personal-link
    -
    SANS
Port: 281/UDP
281/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • personal-link
    Personal Link
    IANA
  • personal-link
    -
    SANS
Port: 370/UDP
370/UDP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • codaauth2
    codaauth2
    IANA
  •  
    codaauth2 - Coda authentication server (Official)
    WIKI
  •  
    securecast1 - Outgoing packets to NAI's servers [dead link] (Unofficial)
    WIKI
  • codaauth2
    -
    SANS
Port: 517/TCP
517/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • talk
    like tenex link, but across machine - unfortunately, doesn't use link protocol (this is actually just a rendezvous port from which a tcp connection is established)
    Bekkoame
  • talk
    like tenex link but across
    SANS
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About TCP/UDP ports

TCP port 87 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 87 in the same order in which they were sent. Guaranteed communication over TCP port 87 is the main difference between TCP and UDP. UDP port 87 would not have guaranteed communication as TCP.
UDP on port 87 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 87 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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