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 "data"

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Port: 20/TCP
20/TCP - Known port assignments (6 records found)
  • Service
    Details
    Source
  • ftp-data
    File Transfer [Default Data]
    IANA
  •  
    FTP - data transfer (Official)
    WIKI
  • ftp-data
    File Transport Protocol (FTP).
    Apple
  • threat
    [threat] Randex
    Bekkoame
  • sennaspyftpserver
    [trojan] Senna Spy FTP server
    SANS
  • trojan
    [trojan] Amanda. Remote Access / Keylogger / Steals passwords / ICQ trojan. Works on Windows 95 and 98, together with ICQ. Amanda installs under Windows NT, but is not able to run. Aliases: Backdoor.Amanda
    Simovits
Port: 20/UDP
20/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ftp-data
    File Transfer [Default Data]
    IANA
Port: 112/TCP
112/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • mcidas
    McIDAS Data Transmission Protocol
    IANA
Port: 112/UDP
112/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • mcidas
    McIDAS Data Transmission Protocol
    IANA
Port: 113/TCP
113/TCP - Known port assignments (20 records found)
  • Service
    Details
    Source
  • auth
    Authentication Service
    IANA
  •  
    ident - Authentication Service/Identification Protocol, used by IRC servers to identify users (Official)
    WIKI
  • ident
    -
    Bekkoame
  • auth
    ident tap Authentication Service
    SANS
  • ident
    Identification Protocol.
    Apple
  • threat
    [threat] W32.Bofra
    Bekkoame
  • threat
    [threat] W32.Korgo
    Bekkoame
  • threat
    [threat] W32.Linkbot
    Bekkoame
  • threat
    [threat] W32.Mydoom
    Bekkoame
  • threat
    [threat] W32.Spybot
    Bekkoame
  • trojan
    [trojan] Dosh. Remote Access. Works on Windows. Aliases: Backdoor.Dosh
    Simovits
  • trojan
    [trojan] Gibbon. Works on Windows. Aliases: Backdoor.Gibbon, Ders, Backdoor.Ders, Delf.E, War Gibbon
    Simovits
  • trojan
    [trojan] Taskman. Remote Access / IRC trojan / DoS tool. Works on Windows 95, 98 and NT, together with an IRC software. Aliases: Trojan.PSW.Taskman, Task Manager, Tasm, Backdoor.Tasmer, Narnar, W32.Tasmer.A, IRC/Randy, Randy, Tasmer
    Simovits
  • 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] Alicia. Remote Access / IRC trojan. Works on Windows. Aliases: Backdoor.Alicia
    Simovits
  • trojan
    [trojan] Cyn. Remote Access / Downloading trojan / Port scanner. Works on Windows. Aliases: Backdoor.Cyn, Backdoor.PB
    Simovits
  • trojan
    [trojan] DataSpy Network X. Remote Access / Keylogger / Downloading trojan / Port scanner / DoS tool / IRC trojan / Port proxy / Hacking tool / Destructive trojan. Works on Windows. Aliases: DSNX, Win32.DSNX, Backdoor.DSNX, BackDoor.UK, Trojan.Win32.DSNX, Troj/Dsnx
    Simovits
  • threat
    [threat] Invisible Identd Deamon
    Bekkoame
  • threat
    [threat] Kazimas
    Bekkoame
  • threat
    [threat] Randex
    Bekkoame
Port: 138/TCP
138/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • netbios-dgm
    NETBIOS Datagram Service
    IANA
  •  
    NetBIOS NetBIOS Datagram Service (Official)
    WIKI
  • threat
    [threat] Chode
    Bekkoame
  • trojan
    [trojan] Chode. Worm / Network trojan / Autodialing trojan / Destructive trojan. Works on Windows 3.x, 95 and 98 (maybe also on NT). Aliases: BAT/911-A, BAT/911-B, BAT.Chode.Worm, W95/Firkin.worm, Foreskin, BAT911, 911, DickHair, Bat/Firkin.A, Bat/Firkin.B, Firkin, Chode 911
    Simovits
  • trojan
    [trojan] Nimda. Virus / Worm / Mail trojan / Network trojan / Hacking tool. Works on Windows 95, 98, ME, NT, 2000 and XP, together with MS Internet Information Server (IIS), MS Internet Explorer 5.5 SP1, MS Outlook , MS Outlook Express and MS Word. Aliases: Concept Virus (CV) v.5, W32.Nimda, Minda, W32.Minda, I-Worm.Nimda, Code Rainbow , PE_Nimda.A, CV-5
    Simovits
Port: 138/UDP
138/UDP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • netbios-dgm
    NETBIOS Datagram Service
    IANA
  •  
    NetBIOS NetBIOS Datagram Service (Official)
    WIKI
  • netbios-dgm
    NETBIOS Datagram Service. Windows Datagram Service, Windows Network Neighborhood
    Apple
  • threat
    [threat] W32.Spybot
    Bekkoame
Port: 140/TCP
140/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • emfis-data
    EMFIS Data Service
    IANA
Port: 140/UDP
140/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • emfis-data
    EMFIS Data Service
    IANA
Port: 344/TCP
344/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • pdap
    Prospero Data Access Protocol
    IANA
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About TCP/UDP ports

TCP port 20 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 20 in the same order in which they were sent. Guaranteed communication over TCP port 20 is the main difference between TCP and UDP. UDP port 20 would not have guaranteed communication as TCP.
UDP on port 20 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 20 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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