# Connection

* Max connection: system support maximal 128 users. 0 means there is no connection limit.
* TCP port: Default value is 37777.
* UDP port: Default value is 37778.
* HTTP port: Default value is 80.
* HTTPS port: Default value is 443.
* RTSP port: Default value is 554.

Important: System needs to reboot after you changed and saved any setup of the above four ports.
Please make sure the port values here do not conflict.

<img src="/images/old/Image_602.jpg">