本节中，你将会还原你主机的网络设置到原先的状态。

1. 打开系统设置（本体設定 / System Settings）
2. Navigate to `Internet Settings` -> `Connection Settings`
3. Click on your network connection slot and navigate to `Change Settings` -> `Next Page (right arrow)` -> `Proxy Settings`
4. Set "Proxy Settings" to "No"
5. Click OK, then click Save
6. When prompted, click "Test" to perform the connection test
   - The test should succeed
7. 将主机关机