By default Ambari uses port 8080 for access to Ambari Web and the REST API. If you wish to change the port number, you need to edit the Ambari properties file.
| ![[Important]](../common/images/admon/important.png) | Important | 
|---|---|
| Ambari Server should not be running when you do this: either make the edits before you start Ambari Server the first time or bring the server down to make the edits. | 
- On the Ambari Server host, open - /etc/ambari-server/conf/ambari.propertieswith a text editor.
- Add the client API port property and set it to your desired port value: - client.api.port=<port_number> 
- Start (or re-start) the Ambari Server. You can now access Ambari Web via the newly configured port: - http://{your.ambari.server}:<port_number>


