A PAC file contains JavaScript rules that determine whether a web browser sends web traffic directly to the internet or through a proxy server. PAC files can control how browsers handle HTTP, HTTPS, and FTP traffic, providing flexibility and redundancy compared to explicit proxy configuration. The document discusses what PAC files are, their syntax and functions, examples of PAC files, how Zscaler relates to them, best practices, and limitations.

1. PAC files

2. Agenda
● What is a PAC file
● PAC Syntax
● PAC functions
● PAC Examples
● Zscaler and PAC files
● Best Practices for PAC files
● PAC limitations

3. What is a PAC file
A Proxy Auto-Configuration (PAC) file contains a set of rules coded in JavaScript
which allows a web browser to determine whether to send web traffic direct
to the Internet or be sent via a proxy server.
PAC files can control how a web browser handles HTTP, HTTPS, and FTP traffic.
PAC files provide flexibility and redundancy in a manner which isn’t
currently possible when configuring an explicit proxy.