When configuring Umbrella's secure web gateway (SWG), you have several choices as to how you can send web traffic to Umbrella. One of those choices is to integrate a proxy auto-config (PAC) file URL for the browser you will be using to reach destinations. Once integrated into your system, all traffic through that browser is redirected to Umbrella's secure web proxy. When deploying Secure Web Gateway with a PAC file, Umbrella DNS policies will not be enforced for traffic generated in the web browser. DNS policies will still apply to non-web browser traffic which bypasses the PAC file.
Note: PAC file downloads and usage are limited to fixed networks registered in Umbrella. PAC files are not supported for roaming computers or other connection mechanisms.
What's a PAC file?
A proxy auto-config (PAC) file is used to tell a browser which proxy server it must use to fetch a URL.
For the most part, integrating Umbrella's PAC file into your system so that all browser-based traffic is proxied is a simple cut and paste procedure. There may, however, be occasions when you are required to customize the PAC file before integrating it into your system. For more information about deploying and customizing a PAC file, see:
- Deploy Umbrella's PAC File for Windows
- Deploy Umbrella's PAC File for Mac
- Customize Umbrella's PAC File
Note: Microsoft has deprecated PAC file support for the file:// and ftp:// protocols in Windows 10 on Edge. Hosting the PAC file on the local machine will not work on this browser. For more information, see Windows 10 does not read a PAC file referenced by a file protocol.
Updated about a month ago