# Proxy Server Settings

If you want to connect to the Internet through a proxy server, you must configure the proxy server in the code that runs the Amplify SDK cloud service.

```{note}
You do not need to read this page if you are not using a proxy server to connect to the Internet.
```

## Installing the Amplify SDK

You will need to specify a proxy when using the pip command.

```bash
$ python3 -m pip install --proxy http://user:password@xxx.xxx.xxx.xxx:xxxx -U amplify
```

## Running the solver from the Amplify SDK

If your solver is deployed as a cloud service, you must set up a proxy for the solver client.

```{note}
Solvers provided as a cloud service are those with the {bdg-secondary}`☁️ Cloud` tag in the list of solvers on [this page](#solver-clients). Solvers with the {bdg-secondary}`💻 Local` tag do not require Internet access and, therefore, do not require proxy settings.
```

Specify the proxy in the `proxy` keyword argument when building the solver client. The following example uses {py:class}`~amplify.FixstarsClient` as the solver client, but the same applies to other solver clients.

```{testcode}
from amplify import FixstarsClient

client = FixstarsClient(proxy="http://user:password@xxx.xxx.xxx.xxx:xxxx")
```

You can also specify the proxy at a later time.

```{testcode}
from amplify import FixstarsClient

client = FixstarsClient()
client.proxy = "http://user:password@xxx.xxx.xxx.xxx:xxxx"
```