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 "r"

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Port: 45/TCP
45/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • mpm
    Message Processing Module [recv]
    IANA
Port: 45/UDP
45/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • mpm
    Message Processing Module [recv]
    IANA
Port: 50/TCP
50/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • re-mail-ck
    Remote Mail Checking Protocol
    IANA
  •  
    Remote Mail Checking Protocol (Official)
    WIKI
  • threat
    [threat] DRAT
    Bekkoame
  • drat
    [trojan] DRAT
    SANS
Port: 50/UDP
50/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • re-mail-ck
    Remote Mail Checking Protocol
    IANA
  •  
    Remote Mail Checking Protocol (Official)
    WIKI
Port: 51/TCP
51/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • la-maint
    IMP Logical Address Maintenance
    IANA
  •  
    IMP Logical Address Maintenance (Official)
    WIKI
  • trojan
    [trojan] Fuck Lamers Backdoor. Remote Access. Works on Windows.
    Simovits
Port: 52/TCP
52/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • xns-time
    XNS Time Protocol
    IANA
  •  
    XNS (Xerox Network Systems) Time Protocol (Official)
    WIKI
  • trojan
    [trojan] MuSka52. Remote Access / Keylogger / Steals passwords / ICQ trojan / AIM trojan. Works on Windows, together with AOL's Messanger AIM. Aliases: Backdoor.QT, BackDoor.Muska, M52
    Simovits
  • trojan
    [trojan] Skun. Remote Access / Destructive trojan. Works on Windows. Aliases: Backdoor.Skun
    Simovits
Port: 53/TCP
53/TCP - Known port assignments (11 records found)
  • Service
    Details
    Source
  • domain
    Domain Name System (DNS). MacDNS, FaceTime
    Apple
  •  
    Domain Name System (DNS) (Official)
    WIKI
  • domain
    Domain Name Server
    IANA
  • threat
    [threat] W32.Dasher
    Bekkoame
  • threat
    [threat] W32.Spybot
    Bekkoame
  • trojan
    [trojan] ADM worm. Worm / Rootkit / Backdoor. Works on Unix (Linux). Affects Linux RedHat 4.0 to 5.2. Aliases: ADM Inet w0rm, Linux.ADM.Worm
    Simovits
  • trojan
    [trojan] li0n. Worm / Steals passwords / Rootkit dropper / Hacking tool / Distributed DoS tool. Works on Unix (Linux), together with BIND 8.2. Aliases: The Lion worm, Linux/Lion, 1i0n, Lion
    Simovits
  • trojan
    [trojan] MscanWorm.
    Simovits
  • trojan
    [trojan] MuSka52. Remote Access / Keylogger / Steals passwords / ICQ trojan / AIM trojan. Works on Windows, together with AOL's Messanger AIM. Aliases: Backdoor.QT, BackDoor.Muska, M52
    Simovits
  • threat
    [threat] Civcat
    Bekkoame
  • threat
    [threat] Esteems
    Bekkoame
Port: 54/TCP
54/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • xns-ch
    XNS Clearinghouse
    IANA
  •  
    XNS (Xerox Network Systems) Clearinghouse (Official)
    WIKI
  • trojan
    [trojan] MuSka52. Remote Access / Keylogger / Steals passwords / ICQ trojan / AIM trojan. Works on Windows, together with AOL's Messanger AIM. Aliases: Backdoor.QT, BackDoor.Muska, M52
    Simovits
Port: 56/TCP
56/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • xns-auth
    XNS Authentication
    IANA
  •  
    Route Access Protocol (RAP) (Unofficial)
    WIKI
  •  
    XNS (Xerox Network Systems) Authentication (Official)
    WIKI
Port: 56/UDP
56/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • xns-auth
    XNS Authentication
    IANA
  •  
    Route Access Protocol (RAP) (Unofficial)
    WIKI
  •  
    XNS (Xerox Network Systems) Authentication (Official)
    WIKI
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About TCP/UDP ports

TCP port 45 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 45 in the same order in which they were sent. Guaranteed communication over TCP port 45 is the main difference between TCP and UDP. UDP port 45 would not have guaranteed communication as TCP.
UDP on port 45 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 45 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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