Setting proxy configuration in browsers is not a specific task related to MWG but it's a much wider topic, it's all about finding the right proxy server. The main difference between PAC file and setting for proxy server:
- proxyserver: one proxy server address and port and maybe some exceptions for direct access to webservers: valid in simple environments
FindProxyForURL(url, host), which iscalled automatically by the browser for every webserver name. Using this you can have a very flexible or even dynamic solution. There are many resources on how to code your PAC file you may start with Proxy auto-config - Wikipedia, the free encyclopedia
Many thanks Patrick.