A proxy auto-config (PAC) file defines how web browsers and other user agents can automatically choose the appropriate proxy server for fetching a given URL.

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Internet Explorer proxy pac files

We have a simple pac file used for staff in work and at home: function FindProxyForURL(url, host) { /* Exclude "Portico" URL */ if (shExpMatch(url, "*google.com*")) { return ...
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How can I debug PAC (proxy auto config) on Windows 8.1 (IE11 and Modern UI)?

On older systems such as Windows 7 + IE10, calling "alert()" in the PAC file would cause a dialog being shown. However, with Windows 8.1 no dialogs are displayed even if IE11 seems to be making use ...
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Proxy Auto Config (PAC) dnsResolve() function return values

Good Morning! I have a rather simple question. Does anyone have a function reference for the dnsResolve() function in Proxy Auto Configuration scripts? Or for that matter, a function reference for ...
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Automatic Proxy Configuration Script - Lab Setup Process

I have a requirement to set a test machine which utilises automatic proxy configuration using a WPAD.DAT file. This is to replicate a customer environment (that we can't use for testing) so we may ...
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PAC file return statement with “+” sign

I saw a PAC file written like this toky1 = "PROXY webproxy2.mycompany.com:8080; "; dirext = "PROXY webproxy1.mycompany.com:8080; "; if (isInNet(myIpAddress(), "10.1.33.0", "255.255.255.0")) { ...
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Filter HTTPS URLs with non-transparent proxy

I have set up a Squid v.3.1 + Squidguard, the proxy is configured on each browser via a proxy.pac file. Now if an user goes to a blocked site with HTTP (e.g. http://www.facebook.com) the Url filter ...
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How to override the network DHCP Server settings to be specific to my own .conf file?

Basically, I have want to test out WPAD(Web Proxy Autodiscovery Protocol ) , PAC. But I would like to do it without touching the Network DHCP server. So, can you suggest a way in which I can achieve ...
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proxy auto configuration file requests

What might be causing bursts of 10 - 20 proxy auto config file requests? I am seeing bursts of requests for our PAC file, which is hosted on an internal Apache server. Some bursts are up to 20 per ...
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ISA 2006 switch to kerberos causes authentication problems for some users

In our large corporate environment we have 4 ISA 2006 servers set up. The users (WinXP IE8) are configured with an automatic proxy configuration script. Recently, the PAC was modified to return FQDN ...
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How to automatically configure username/password with proxy PAC file?

I have rather complex proxy setup and one of those proxies requires username/password. Is there a way to configure the username/password so that users don't have to enter them when traffic is ...
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Proxy Auto config (PAC) exception

I want to configure a proxy pac file that has the same list of exception as the ones I have on IE -> Internet Options -> Connections -> LAN settings -> Advanced and after I can see the exception in ...
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.pac file and Firefox's network.proxy.socks_remote_dns setting

Does anyone know if Firefox's setting network.proxy.socks_remote_dns would apply to a SOCKS proxy set by a .pac file or only when manually entered in network options? I ask because I use a dynamic ssh ...
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using IPv6 addresses in proxy.pac

When creating PAC files, one can use functions like isInNet, for example if (isInNet(host, "10.9.9.9", "255.0.255.0")) return "DIRECT"; However, it doesn't make sense to use IP and wildcard/mask when ...
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proxy.pac file performance optimization

I reroute certain websites through a proxy with a proxy.pac file. It basically looks like this: if (shExpMatch(host, "www.youtube.com")) { return "PROXY proxy.domain.tld:8080; DIRECT" } if ...
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dnsResolve and isInNet functions Problem

We have a Proxy.pac file: function FindProxyForURL(url, host) { if (dnsResolve("ProxyServer") == "10.1.1.116") if (dnsDomainLevels(host) == 0 || isInNet(host, "10.0.0.0","255.0.0.0") || ...
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Prevent MSIE 8 from reloading PAC file

How do I prevent Internet Explorer from reloading the PAC file? I need to stop IE8 from reloading the PAC file on every request the browser makes. I only require it to load once per session.
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How Do I Prevent MSIE 8 From Reloading PAC File?

Exactly what the title says. I need to stop IE 8 from reloading the PAC file on every request the browser makes. I only require it to load once per session.
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Global (computer-wide) proxy settings from pac file

Our company just changed proxy settings from using one proxy server to a bunch and inserted pac files to IE settings. The problem is, any software that doesn't allow setting proxy script (pac file) ...
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Proxy.pac file - accessing a site on non standard port to be sent direct

We are about to start using a proxy.pac file in our environment. It will be a very simple file with most traffic going to the proxy but a handfull of sites going direct (where they are hosted ...