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 "v"

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Port: 515/TCP
515/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • printer
    spooler
    IANA
  •  
    Line Printer Daemon - print service (Official)
    WIKI
  • printer
    Line Printer (LPR), Line Printer Daemon (LPD). Used for printing to a network printer, Printer Sharing in Mac OS X.
    Apple
  • trojan
    [trojan] MscanWorm.
    Simovits
  • trojan
    [trojan] Ramen. Worm / HTML trojan / HTTP server / Hacking tool / Destructive trojan. Works on Unix (Linux). Linux Red Hat 6.x and early versions of 7.0. May also work on other Unix dialects such as FreeBSD and Linux SuSE, Mandrake and Cladera. The mail addresses used are [email protected] and [email protected]. Aliases: Linux.Ramen, Worm.Ramen, Elf.Ramen
    Simovits
Port: 516/TCP
516/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • videotex
    videotex
    IANA
  • videotex
    -
    SANS
Port: 516/UDP
516/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • videotex
    videotex
    IANA
  • videotex
    -
    SANS
Port: 520/UDP
520/UDP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • router
    local routing process (on site); uses variant of Xerox NS routing information protocol - RIP
    IANA
  •  
    Routing Information Protocol (RIP) (Official)
    WIKI
  • route
    router routed -- RIP
    SANS
  • trojan
    [trojan] A UDP backdoor. Backdoor. Works on Unix.
    Simovits
Port: 524/TCP
524/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • ncp
    NCP
    IANA
  •  
    NetWare Core Protocol (NCP) is used for a variety things such as access to primary NetWare server resources, Time Synchronization, etc. (Official)
    WIKI
  • ncp
    -
    SANS
Port: 524/UDP
524/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • ncp
    NCP
    IANA
  •  
    NetWare Core Protocol (NCP) is used for a variety things such as access to primary NetWare server resources, Time Synchronization, etc. (Official)
    WIKI
  • ncp
    -
    SANS
Port: 545/TCP
545/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • appleqtcsrvr
    appleqtcsrvr
    IANA
  •  
    OSIsoft PI (VMS), OSISoft PI Server Client Access (Unofficial)
    WIKI
  • ekshell
    Kerberos encrypted remote shell NAME?
    SANS
Port: 575/TCP
575/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • vemmi
    VEMMI
    IANA
  • vemmi
    -
    SANS
Port: 575/UDP
575/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • vemmi
    VEMMI
    IANA
  • vemmi
    -
    SANS
Port: 577/TCP
577/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • vnas
    vnas
    IANA
  • vnas
    -
    SANS
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About TCP/UDP ports

TCP port 515 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 515 in the same order in which they were sent. Guaranteed communication over TCP port 515 is the main difference between TCP and UDP. UDP port 515 would not have guaranteed communication as TCP.
UDP on port 515 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 515 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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