Java Script for LAN Web Proxy Setting

1. Create Java Script.
FileName: wpad.pac
Java Script Content for Wpad.pac

function FindProxyForURL(url, host)
{
  if  (
 (isPlainHostName(host)) ||
 (dnsDomainIs(host,".xxxxxxx.com")) ||
 (dnsDomainIs(host,".aesdirect.gov")) ||
 (dnsDomainIs(host,".adobe.com")) ||
 (dnsDomainIs(host,".symantec.com")) ||
 (dnsDomainIs(host,".symantecliveupdate.com")) ||
 (dnsDomainIs(host,".windowsupdate.com")) ||
 (dnsDomainIs(host,".microsoft.com")) ||
 (dnsDomainIs(host,".smartxxxxx.com")) ||
 (dnsDomainIs(host,".citigroup.com")) ||
 (dnsDomainIs(host,".citibank.com")) ||
 (isInNet(host,"192.168.0.0","255.255.0.0")) ||
 (isInNet(host,"208.xx.xx.0","255.255.255.0")) ||
 (isInNet(host,"127.0.0.1","255.255.255.255")) ||
 (isInNet(host,"172.28.1.0","255.255.255.0")) ||
 (isInNet(host,"172.29.1.0","255.255.255.0")) ||
 (isInNet(host,"172.16.52.0","255.255.255.0"))
 )
 return "DIRECT";
  else return "PROXY proxyservername.xxxxx.com:port#; DIRECT";
}

2. Put the wpad.pac on webserver. 

   The url is http://webservername/wpad.pac

3. Configure AD Group Policy to Apply the proxy setting.

   Go to User Configuration---Windows Settings---Internet Explorer Maintenance---Connection---Automatic Browser Configuration---(1.Enable Automatic Configuration. 2. enter the Automatic proxy URL.).

    Please see the following picture.