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 "nc"

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Port: 678/UDP
678/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ggf-ncp
    GNU Generation Foundation NCP
    IANA
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 911/TCP
911/TCP - Known port assignments (6 records found)
  • Service
    Details
    Source
  • xact-backup
    xact-backup
    IANA
  •  
    Network Console on Acid (NCA) - local tty redirection over OpenSSH (Unofficial)
    WIKI
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
  • threat
    [threat] Dark Shadow
    Bekkoame
  • darkshadow
    [trojan] Dark Shadow
    SANS
  • trojan
    [trojan] Dark Shadow. Remote Access. Works on Windows 95, 98 and ME. Aliases: BackOrifice.Trojan
    Simovits
Port: 1521/UDP
1521/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ncube-lm
    nCube License Manager
    IANA
  • threat
    [threat] Oracle SQL defaults to listening at this port (SQL*Net v2.x)
    Bekkoame
Port: 1521/TCP
1521/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • ncube-lm
    nCube License Manager
    IANA
  •  
    nCube License Manager (Unofficial)
    WIKI
  •  
    Oracle database default listener, in future releases official port 2483 (Official)
    WIKI
  • oracle
    Oracle 8 SQL (default)
    SANS
  • threat
    [threat] Oracle SQL defaults to listening at this port (SQL*Net v2.x)
    Bekkoame
Port: 1591/TCP
1591/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ncpm-pm
    ncpm-pm
    IANA
Port: 1591/UDP
1591/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ncpm-pm
    ncpm-pm
    IANA
Port: 1683/UDP
1683/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ncpm-hip
    ncpm-hip
    IANA
Port: 1683/TCP
1683/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ncpm-hip
    ncpm-hip
    IANA
Port: 1744/TCP
1744/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ncpm-ft
    ncpm-ft
    IANA
Port: 1744/UDP
1744/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ncpm-ft
    ncpm-ft
    IANA
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About TCP/UDP ports

TCP port 678 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 678 in the same order in which they were sent. Guaranteed communication over TCP port 678 is the main difference between TCP and UDP. UDP port 678 would not have guaranteed communication as TCP.
UDP on port 678 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 678 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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