transmission/docs/Web-Interface.md

A web interface is built into all Transmission flavors, enabling them to be controlled remotely.

Enabling the web interface

Refer to the Remote management links in the User Documentation for your client to find out how to enable the web interface.

Accessing the web interface

Once enabled, open a web browser and direct it to http://ip_address_of_machine_running_transmission:9091/ If the web browser and the Transmission daemon are on the machine you can use http://127.0.0.1:9091/ 9091 is the default remote control port specified in Transmission configuration.