# Proxy IP

If CommandBox is running a server behind a trusted proxy which is known to set the `X-Forwarded-For` HTTP  header, then you can enable this setting for the remote IP in your CF engine's `cgi` scope to represent the upstream IP.

```
server set web.useProxyForwardedIP=true
```

 This is disabled by default.  Otherwise a malicious client could send a fake `X-Forwarded-For` HTTP  header to make it look like their traffic was coming from a trusted IP such as `127.0.0.1` to bypass any IP-based restrictions.   Only enable this if you trust the proxy CommandBox is sitting behind.  This should never be enabled if CommandBox is directly accessible on the internet.  

Enable for all servers like so:

```
config set server.defaults.web.useProxyForwardedIP=true
```

{% hint style="info" %}
For [Multi-Site](https://commandbox.ortusbooks.com/embedded-server/multi-site-support), Proxy IP settings can be configured on a per-site basis in the `sites` object of the `server.json` or in a `.site.json` file.
{% endhint %}


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