Service name port numbers¶
source “http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml”
Service Name and Transport Protocol Port Number Registry
- Last Updated
- 2015-12-14
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, Lars Eggert, Alexey Melnikov, Wes Eddy, and Alexander Zimmermann SCTP: Allison Mankin and Michael Tuexen DCCP: Eddie Kohler and Yoshifumi Nishida
- Reference
- [RFC6335]
Note
Service names and port numbers are used to distinguish between different services that run over transport protocols such as TCP, UDP, DCCP, and SCTP.
Service names are assigned on a first-come, first-served process, as documented in [RFC6335].
Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535); the difference uses of these ranges is described in [RFC6335]. System Ports are assigned by IETF process for standards-track protocols, as per [RFC6335]. User Ports are assigned by IANA using the “IETF Review” process, the “IESG Approval” process, or the “Expert Review” process, as per [RFC6335]. Dynamic Ports are not assigned.
The registration procedures for service names and port numbers are described in [RFC6335].
Assigned ports both System and User ports SHOULD NOT be used without or prior to IANA registration.
- PLEASE NOTE THE FOLLOWING: *
- ASSIGNMENT OF A PORT NUMBER DOES NOT IN ANY WAY IMPLY AN *
- ENDORSEMENT OF AN APPLICATION OR PRODUCT, AND THE FACT THAT NETWORK *
- TRAFFIC IS FLOWING TO OR FROM A REGISTERED PORT DOES NOT MEAN THAT *
- IT IS “GOOD” TRAFFIC, NOR THAT IT NECESSARILY CORRESPONDS TO THE *
- ASSIGNED SERVICE. FIREWALL AND SYSTEM ADMINISTRATORS SHOULD *
- CHOOSE HOW TO CONFIGURE THEIR SYSTEMS BASED ON THEIR KNOWLEDGE OF *
- THE TRAFFIC IN QUESTION, NOT WHETHER THERE IS A PORT NUMBER *
- REGISTERED OR NOT. *