TCP/UDP Port Finder

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Database updated - March 30, 2016

Search results for "33333"

Port: 33333/TCP
33333/TCP - Known port assignments (8 records found)
  • Service
    Details
    Source
  • dgi-serv
    Digital Gaslight Service
    IANA
  • threat
    [threat] Blakharaz
    Bekkoame
  • threat
    [threat] Prosiak
    Bekkoame
  • threat
    [threat] Selka
    Bekkoame
  • threat
    [threat] W32.Zotob
    Bekkoame
  • blakharaz
    [trojan] Blakharaz
    SANS
  • prosiak
    [trojan] Prosiak
    SANS
  • trojan
    [trojan] Prosiak. Remote Access / Keylogger / FTP server / Proxy / HTTP server. Works on Windows 95, 98 and ME. Telnet can also be used as client. Aliases: Backdoor.Prosiak, Proziak
    Simovits
Port: 33333/UDP
33333/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  •  
    Reserved
    IANA

About TCP/UDP ports

TCP port 33333 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 33333 in the same order in which they were sent. Guaranteed communication over TCP port 33333 is the main difference between TCP and UDP. UDP port 33333 would not have guaranteed communication as TCP.

UDP on port 33333 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 33333 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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