TCP/UDP Port Finder

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Database updated - March 30, 2016

Search results for "machine"

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Port: 512/UDP
512/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • biff
    used by mail system to notify users of new mail received; currently receives messages only from processes on the same machine
    IANA
  •  
    comsat, together with biff (Official)
    WIKI
  • biff
    comsat
    SANS
Port: 513/UDP
513/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    Who (Official)
    WIKI
  • who
    maintains data bases showing who's logged in to machines on a local net and the load average of the machine
    Bekkoame
  • who
    BSD rwhod(8)
    SANS
Port: 517/UDP
517/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    Talk (Official)
    WIKI
  • 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
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
Port: 2179/UDP
2179/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • vmrdp
    Microsoft RDP for virtual machines
    IANA
Port: 2179/TCP
2179/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • vmrdp
    Microsoft RDP for virtual machines
    IANA
Port: 2766/TCP
2766/TCP - Known port assignments (6 records found)
  • Service
    Details
    Source
  • compaq-scp
    Compaq SCP
    IANA
  •  
    KnowShowGo P2P (Official)
    WIKI
  • listen
    System V listener port
    SANS
  • nlps
    Solaris Print Services
    SANS
  • threat
    [threat] used by Solaris listen/nlps_server. It was part of System V R3 and Solaris. In much the same way that scanning for tcpmux will fingerprint SGI machines, scanning for this port will fingerprint SVR3 (Solaris 2.0) machines.
    Bekkoame
  • threat
    [threat] W32.HLLW.Deadhat
    Bekkoame
Port: 3099/UDP
3099/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • chmd
    CHIPSY Machine Daemon
    IANA
Port: 3099/TCP
3099/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • chmd
    CHIPSY Machine Daemon
    IANA
Port: 3628/UDP
3628/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ept-machine
    EPT Machine Interface
    IANA
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About TCP/UDP ports

TCP port 512 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 512 in the same order in which they were sent. Guaranteed communication over TCP port 512 is the main difference between TCP and UDP. UDP port 512 would not have guaranteed communication as TCP.
UDP on port 512 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 512 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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