# Port / URL setting

You can control the port and URL that the AyaNova server will listen on via environment variable or command line parameter.

## Default

If no override is specified AyaNova will use the following default value:

`"http://*:7575"`

This means AyaNova will listen on port 7575 on all of the computer's network addresses.

## Behind a reverse proxy

When all users connect through a reverse proxy (such as NGINX) on the same computer, use `127.0.0.1` in place of `*`, for example `"http://127.0.0.1:7575"`. AyaNova then accepts connections only from that computer, so it can not be reached directly over unencrypted HTTP, bypassing the reverse proxy. See the [Linux server installation](ops-install-linux-server.md#f-accept-connections-only-through-nginx) instructions.

## Overriding

AyaNova expects the PORT and URL to be provided by a config.json property, environment variable or command line parameter named

`AYANOVA_USE_URLS`

The value specified should be a string of one or more semicolon separated values, for example:
`http://*:5000;http://localhost:5001;https://hostname:5002`

Example config.json entry

```json
{
  ...other properties...
  "AYANOVA_USE_URLS": "http://*:49152"
}
```

Example command line parameter

`ayanova.exe --AYANOVA_USE_URLS="http://*:5000"`

Example environment variable

Windows

`set "AYANOVA_USE_URLS=http://*:5000"`

Linux

`export AYANOVA_USE_URLS="http://*:5000"`