![]() ![]() ![]() ![]() ![]() List of TCP and UDP port numbers/etc/services, a service name database file on Unix- like operating systems. Later, the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) needed only one port for full- duplex, bidirectional traffic. The even- numbered ports were not used, and this resulted in some even numbers in the well- known port number range being unassigned. The Stream Control Transmission Protocol (SCTP) and the Datagram Congestion Control Protocol (DCCP) also use port numbers. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist. The Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses. Similarly many of the official assignments refer to protocols that were never or are no longer in common use. This article lists port numbers and their associated protocols that have experienced significant uptake. Table legend. On Unix- like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the well- known ports. SmartSniff is a packet sniffer that capture TCP/IP packets and display them as sequence of conversations between clients and servers. Commercial Monitoring Tools, not integrated with an NMP Analyzer/Sniffer Both TCP and UDP have been assigned to TCPMUX by IANA. Used to determine a user's identity of a particular TCP connection. Used by Unisys Programmer's Workbench for Clearpath MCP, an IDE for Unisys MCP software development. Official. 13. 5TCPUDPDCEendpoint resolution. Official. 13. 5TCPUDPMicrosoft EPMAP (End Point Mapper), also known as DCE/RPC Locator service. 11/20/2002 - A note from Serge about TCP/IP NetBIOS Helper. I would just like to comment on the TCP/IP NetBIOS Helper system process. Well-known ports; Port TCP UDP Description Status; 0: N/A: N/A: In programming APIs (not in communication between hosts), requests a system-allocated (dynamic) port: N/A. Also used by DCOMOfficial. TCPUDPNet. BIOS Name Service, used for name registration and resolution. They are assigned by IANA for specific service upon application by a requesting entity. Enabled for compatibility reasons by default on Cisco. TCP port 1. 64. 5 must not be used. Enabled for compatibility reasons by default on Cisco. Official port is 1. TCP port 1. 64. 6 must not be used. See also port 4. 45 for Server Message Block (SMB), a dialect of CIFS. Official. 30. 50. TCPUDPgds- db (Interbase/Firebird databases)Official. TCPUDPAPCPower. Chute Network. Port though often changed during installation Metasploit: Default listener port. Unofficial. 44. 44. ![]() TCPUDPXvfb X server virtual frame buffer service. Unofficial. 44. 44–4. TCPI2. P HTTP/S proxy. Unofficial. 44. 86. TCPUDPIntegrated Client Message Service (ICMS)Official. TCPUDPApple Wide Area Connectivity Service, used by Back to My Mac. Management Console, File Station, Audio Station. Unofficial. 50. 00. TCPFlask Development Webserver. Unofficial. 50. 00. IP Messenger, free download. A simple LAN messaging client based on TCP and UDP over IP supporting AES and RSA encryption. 1 screenshot along with a virus/malware. External Resources SANS Internet Storm Center: port 25. Notes: Well Known Ports: 0 through 1023. Registered Ports: 1024 through 49151. Dynamic/Private : 49152 through. TCPHeroku console access. Official. 50. 00. TCPAT& T U- versepublic, educational, and government access (PEG) streaming over HTTP. Secured Management Console, File Station, Audio Station. Unofficial. 50. 02. TCPASSA ARX access control system! Messenger. Unofficial. TCPita- agent Symantec Intruder Alert. Both UDP and TCP are reserved, but only UDP is used. Official. 53. 49. TCPSTUN (TLS over TCP), a protocol for NAT traversal. Port though often changed during installation. ![]() ![]() Unofficial. 55. 55. TCPFreeciv versions up to 2. Hewlett- Packard Data Protector, Mc. ![]() Afee End. Point Encryption Database Server, SAP, Default for Microsoft Dynamics CRM 4. Softether VPN default port. Unofficial. 55. 56. TCPUDPFreeciv, Oracle Web. Logic Server Node Manager. TCP is used by default, UDP is used as an alternate. See also ports 8. Official. 80. 08. TCPIBM HTTP Server administration default. See also ports 8. Official. 80. 80. TCPApache Tomcat! Framework web server. This port can be changed . Transport of NMEA 0. TCP or UDPOfficial. TCPIntuit Quickbooks client. Unofficial. 10. 20. TCPFRISK Software International's fpscand virus scanning daemon for Unix platforms. This port can be changed . This port can be changed . Also used by Net. Buster. Little Fighter 2 (TCP), Cubeworld. Port though often changed during installation. Unofficial. 16. 00. TCPshroud. BNCUnofficial. TCPMac OS X Server Web (HTTP) service with performance cache. Port though often changed during installation. Unofficial. 16. 22. TCPOracle Web. Center Content: Content Server Web UI. Port though often changed during installation. Unofficial. 16. 25. TCPOracle Web. Center Content: Inbound Refinery (formerly known as Oracle Universal Content Management). Port though often changed during installation. Unofficial. 16. 26. TCPUDPProject Zomboid Multiplayer Server: Additional sequential ports used for each player connecting to server. Unofficial. 16. 30. TCPOracle Web. Center Content: Records Management (formerly known as Oracle Universal Records Management). Port though often changed during installation. Unofficial. 16. 38. UDPCISCO Default RTP MINUnofficial. UDPReal- time Transport Protocol (RTP), RTP Control Protocol (RTCP), used by Apple's i. Chat for audio and video. Port though often changed during installation. Unofficial. 16. 48. CISCO Default RTP MAXOfficial. UDPBattlefield 2 and mods. Unofficial. 17. 01. TCPWorms multiplayer. Unofficial. 17. 50. TCPUDPDropbox Lan. Sync Protocol (db- lsp); used to synchronize file catalogs between Dropbox clients on a local network. Official. 18. 01. TCPSuper Dancer Online Extreme(SDO- X)—Ci. B Net Station Malaysia Server. Scintilla Device Service. Official. 19. 13. UDPMinecraft Pocket Edition multiplayer server. Empires Ascendant. Unofficial. 20. 70. TCPPrecise TPM Listener Agent. Unofficial. 20. 72. TCPSymantec i. 3 Web GUI server. Unofficial. 20. 79. TCPPrecise TPM Web GUI server. Unofficial. 20. 80. UDPAbleton Link. Unofficial. TCPStarbound Server (default), Starbound. Unofficial. 22. 00. TCPSyncthing (default)Unofficial. TCPFLIR Systems Camera Resource Protocol. Unofficial. 22. 22. TCPDavis Instruments, Weather. Link IPUnofficial. TCPUDPWibu. Key, Software protection system. Official. 22. 34. TCPWolfson Microelectronics WISCEBridge Debug Protocol. Use unknown. Unofficial. TCPXfire. Unofficial. TCPUDPid Software's Quake server. Official. 26. 00. TCPCCP's EVE Online Online gaming MMORPGUnofficial. UDPXonotic, an open sourcearena shooter. Unofficial. 26. 85. TCPWar of No Return Server Port. The Internet Assigned Numbers Authority (IANA). Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Service Name and Transport Protocol Port Number Registry. Retrieved 2. 01. 4- 0. Retrieved 2. 01. 4- 0. Retrieved 2. 01. 5- 0. TCP Port Service Multiplexer (TCPMUX). Retrieved 2. 01. 6- 0. Daytime Protocol. Retrieved 2. 01. 6- 0. Apple (published 2. Archived from the original on 2. Retrieved 2. 01. 6- 0. Stream Control Transmission Protocol. Retrieved 2. 01. 6- 0. Discard Protocol. Retrieved 2. 01. 6- 1. Microsoft Tech. Net. Archived from the original on 2. Retrieved 2. 01. 6- 0. The default port for the wake- up transmission is UDP port 9. The ps - ef and netstat - a commands are bound to TCP ports 1. Active Users. Daytime Protocol. Retrieved 2. 01. 6- 0. Quote of the Day Protocol. Retrieved 2. 01. 6- 0. Message Send Protocol. Retrieved 2. 01. 6- 0. Message Send Protocol 2. Retrieved 2. 01. 6- 0. Character Generator Protocol. Retrieved 2. 01. 6- 0. File Transfer Protocol specification. Retrieved 2. 01. 6- 0. File Transfer Protocol. Retrieved 2. 01. 6- 0. Telnet Protocol Specification. Retrieved 2. 01. 6- 0. Simple Mail Transfer Protocol. Retrieved 2. 01. 6- 0. Time Protocol. Retrieved 2. RAP: Internet Route Access Protocol. Retrieved 2. 01. 6- 1. The RAP protocol operates on TCP port 3. TCP connection between the RAP ports on each system. RAP is also used on UDP port 3. Resource Location Protocol. Retrieved 2. 01. 6- 0. Internet Name Server. Retrieved 2. 01. 6- 0. NICNAME/WHOIS. Retrieved 2. NICNAME/WHOIS. Retrieved 2. WHOIS Protocol Specification. Ran Atkinson, Ken Harrenstien, Mary Stahl, Elizabeth Feinler. Retrieved 2. 01. 6- 0. An Access Control Protocol, Sometimes Called TACACS. Retrieved 2. 01. 6- 0. Remote Mail Checking Protocol. Retrieved 2. 01. 6- 0. The TFTP Protocol. Retrieved 2. 01. 6- 1. TFTP Protocol (revision 2). Noel Chiappa, Bob Baldwin, Dave Clark, Steve Szymanski, Larry Allen, Geoff Cooper, Mike Greenwald, Liza Martin, David Reed. Retrieved 2. 01. 6- 1. The TFTP Protocol (Revision 2). Retrieved 2. 01. 6- 1. The Internet Gopher Protocol (a distributed document search and retrieval protocol). Retrieved 2. 01. 6- 1. This protocol assumes a reliable data stream; TCP is assumed. Gopher servers should listen on port 7. Internet Gopher by IANA). NETRJS: A third level protocol for Remote Job Entry. Retrieved 2. 01. 6- 1. NETRJS Protocol. Retrieved 2. Assigned Numbers. Retrieved 2. 01. 6- 1. NAME/FINGER Protocol. Retrieved 2. 01. 6- 1. The Finger User Information Protocol. Retrieved 2. 01. 6- 1. Finger is based on the Transmission Control Protocol, using TCP port 7. Stack Overflow (published 2. Archived from the original on 2. Retrieved 2. 01. 6- 1. Hypertext Transfer Protocol - - HTTP/1. Retrieved 2. 01. 6- 1. HTTP communication usually takes place over TCP/IP connections. The default port is TCP 8. Hypertext Transfer Protocol (HTTP/1. Message Syntax and Routing. Retrieved 2. 01. 6- 1. In Thomson, Martin. Hypertext Transfer Protocol Version 2 (HTTP/2). Retrieved 2. 01. 6- 1. HTTP/2 uses the same . HTTP/2 shares the same default port numbers: 8. Clifford (September 1. The Kerberos Network Authentication Service (V5). Retrieved 2. 01. 6- 1. When contacting a Kerberos server (KDC) .. The Kerberos Network Authentication Service (V5). Acknowledgements to John Kohl et al. Retrieved 2. 01. 6- 1. Kerberos servers (KDCs) supporting IP transports MUST accept TCP .. UDP requests and SHOULD listen for them on port 8. E.; Rose, M. ISO Transport Services on Top of the TCP. Retrieved 2. 01. 6- 1. A TSAP server begins by LISTENing on TCP port 1. ISO Transport Service on top of the TCP Version: 3. Retrieved 2. 01. 6- 1. TCP port 1. 02 is reserved for hosts which implement this standard. The CCSO Nameserver (Ph) Architecture. Retrieved 2. 01. 6- 1. Initially, the server host starts the Ph service by listening on TCP port 1. The Remote User Telnet Service. Retrieved 2. 01. 6- 1. Post Office Protocol: Version 2. Retrieved 2. 01. 6- 1. This protocol assumes a reliable data stream such as provided by TCP or any similar protocol.
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