How do I configure Internet Explorer to use a PAC file?


How do I configure Internet Explorer to use a PAC file?

To redirect your web traffic to the Zscaler cloud, you can configure your browser to use a Proxy Auto-Configuration (PAC) file. A PAC file is a text file that directs a browser to forward traffic to a proxy server before going to the destination server. The Zscaler service hosts a default PAC file that uses Geo-location technology to forward traffic to the nearest Zscaler Enforcement Node (ZEN).

To learn more, see How do I use default PAC files to forward traffic to the Zscaler service?

The following steps describe how to configure Internet Explorer to use a PAC file. The browser version used in this example is Internet Explorer 11.187.14393.0.

To view the default PAC file, log in to the service portal and follow the instructions below. 

If you were provided a PAC file URL, skip the first two steps.

  1. Go to Administration > Resources > Hosted PAC Files.
  2. Copy the URL of the default PAC file for the Web.
    See image.
  3. Open Internet Explorer and click the Gear icon to open the Tools menu. Then click Internet options.
    See image. 
  4. In the Internet Options window, click Connections, then LAN Settings
    See image.
  5. In the Local Area Network (LAN) Settings window, select Use automatic configuration script and paste the PAC file URL that you copied from the Zscaler service portal.
    See image.
  6. Click OK to save the configuration.

For more information about getting started on the Zscaler service, see the Zscaler Quick Start Guide.

Screenshot of Hosted PAC Files page highlighting the URL of the default PAC file

Screenshot of Internet Explorer settings highlighting the Internet options choice

 Screenshot of Connections tab on Internet Options in Internet Explorer. LAN settings button is highlighted.

 Screenshot of LAN Settings window highlighting Use automatic configuration script option. PAC file URL is entered in Address field.