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 "system"

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Port: 136/UDP
136/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • profile
    PROFILE Naming System
    IANA
Port: 144/TCP
144/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • uma
    Universal Management Architecture
    IANA
  • news
    NewS window system
    SANS
Port: 144/UDP
144/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • uma
    Universal Management Architecture
    IANA
  • news
    NewS window system
    SANS
Port: 166/TCP
166/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • s-net
    Sirius Systems
    IANA
  • noknok
    [trojan] NokNok
    SANS
  • trojan
    [trojan] NokNok. Anti-protection trojan / Remote Access / Steals passwords / IRC trojan / Port scanner. Works on Windows 95, 98, ME and 2000. Does NOT work on Windows NT. Aliases: Backdoor.FA, Troj_BckNokNok
    Simovits
Port: 166/UDP
166/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • s-net
    Sirius Systems
    IANA
Port: 192/TCP
192/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • osu-nms
    OSU Network Monitoring System
    IANA
Port: 192/UDP
192/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • osu-nms
    OSU Network Monitoring System
    IANA
  • osu-nms
    OSU Network Monitoring System. AirPort Base Station PPP status or discovery (certain configurations), AirPort Admin Utility, AirPort Express Assistant
    Apple
Port: 200/TCP
200/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • src
    IBM System Resource Controller
    IANA
  • trojan
    [trojan] CyberSpy. Anti-protection trojan / Remote Access / Keylogger / Steals passwords. Works on Windows. Telnet and poTTY can be used as client. Aliases: CS, Backdoor.CyberSpy
    Simovits
Port: 200/UDP
200/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • src
    IBM System Resource Controller
    IANA
Port: 246/TCP
246/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • dsp3270
    Display Systems Protocol
    IANA
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About TCP/UDP ports

TCP port 136 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 136 in the same order in which they were sent. Guaranteed communication over TCP port 136 is the main difference between TCP and UDP. UDP port 136 would not have guaranteed communication as TCP.
UDP on port 136 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 136 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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