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 "ent"

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Port: 5/TCP
5/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • rje
    Remote Job Entry
    IANA
  •  
    Remote Job Entry (Official)
    WIKI
  • trojan
    [trojan] yoyo. Rootkit / Remote Access. Works on Unix (Linux).
    Simovits
Port: 5/UDP
5/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • rje
    Remote Job Entry
    IANA
  •  
    Remote Job Entry (Official)
    WIKI
Port: 175/TCP
175/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • vmnet
    VMNET
    IANA
  •  
    VMNET (IBM z/VM, z/OS & z/VSE - Network Job Entry(NJE)) (Official)
    WIKI
  • vmnet
    -
    SANS
Port: 309/TCP
309/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • entrusttime
    EntrustTime
    IANA
  • entrusttime
    -
    SANS
Port: 309/UDP
309/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • entrusttime
    EntrustTime
    IANA
  • entrusttime
    -
    SANS
Port: 640/TCP
640/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • entrust-sps
    entrust-sps
    IANA
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 640/UDP
640/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • entrust-sps
    entrust-sps
    IANA
  • pcnfs
    PC-NFS DOS Authentication
    SANS
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 680/TCP
680/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • entrust-aaas
    entrust-aaas
    IANA
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
  • trojan
    [trojan] RTB 666. Remote Access / FTP server / IP scanner. Works on Windows, together with MS Internet Explorer. Aliases: Backdoor.RTB
    Simovits
Port: 680/UDP
680/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • entrust-aaas
    entrust-aaas
    IANA
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
Port: 681/TCP
681/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • entrust-aams
    entrust-aams
    IANA
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
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About TCP/UDP ports

TCP port 5 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 5 in the same order in which they were sent. Guaranteed communication over TCP port 5 is the main difference between TCP and UDP. UDP port 5 would not have guaranteed communication as TCP.
UDP on port 5 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 5 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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