NNTP
NNTP stands for Network News Transfer Protocol and is used to handle Usenet News over Internet. Far from being located on a single server, Usenet News texts are distributed to all News servers around the world. Most larger organizations have a News server of their own, the server being configured to receive certain parts of the News hierachy from one or more other News sserver.
NNTP uses TCP from a high port to port 119 on the News server. The connecting computer could be another News server or a News client.
This corresponds to the following service definition:
| Services | ||||
|---|---|---|---|---|
| Name | Protocol | Firewall type | Client ports | Server ports |
| nntp | TCP | Dynamic session management | 1024-65535 | 119 |
See the SMTP or HTTP section for information on how to create firewall rules and relays.