We have a network topology like below.



www.space.se ----+----- Big Bad Internet ( www.smurf.com )
		 |
		 |
	    Firewall  ( Filters out javascripts and such )
		 |
		 |
	      Proxy   ( wwwgate port 3128 ) ( Filters out virii )
		 |
		 |
	ntweb ---+--- unixweb
		 |
		 |
	Client with NT2000, IE5.5SP2
	Client with NT2000, IE6
	Client with NT4, IE5.5SP2


The functionality we are after should be like this

ntweb			-	Connect Direct
ntweb.space.se		-	Connect Direct
unixweb			-	Connect Direct
unixweb.space.se	-	Connect Direct
www			-	Proxy connect
www.space.se		-	Proxy connect
big.bad.int		-	Proxy connect

This functionality is received by using Netscape and the following script

==============================================
Test 1:

function FindProxyForURL(url, host)
{
        if ( isPlainHostName(host) ||
                  dnsDomainIs(host, ".space.se") ||
                  isInNet(host, "10.0.0.0", "255.0.0.0"))
                  if ( localHostOrDomainIs(host, "outer") ||
                        localHostOrDomainIs(host,"www") ||
                        localHostOrDomainIs(host,"outer.space.se") ||
                        localHostOrDomainIs(host,"www.space.se"))
                        return "PROXY wwwgate:3128";
                  else
                        return "DIRECT";
        else
                return "PROXY wwwgate:3128";

}

Using this, I get:

ntweb			-	Proxy connect 
ntweb.space.se		-	Connect Direct
unixweb			-	Proxy connect
unixweb.space.se	-	Connect Direct
www			-	Proxy connect
www.space.se		-	Proxy connect
big.bad.int		-	Proxy connect


I then started to read up on microsofts webpages on the subject of
Automatic Proxy Configuration Scripts, and found teh following resource:
http://www.microsoft.com/windows/ieak/techinfo/deploy/60/en/corpexjs.htm
Using example 2 from that page I get the following:

======================================================
Test 2:

function FindProxyForURL(url, host)
 {
 if ((isPlainHostName(host) || 
 dnsDomainIs(host, ".space.se")) &&
 !localHostOrDomainIs(host, "www.space.se") &&
 !localHostOrDomainIs(host, "outer.space.se"))
 return "DIRECT";
 else
 return "PROXY wwwgate.space.se:3128";
}

Using this, I get:

ntweb			-	Proxy connect 
ntweb.space.se		-	Connect Direct
unixweb			-	Proxy connect
unixweb.space.se	-	Connect Direct 
www			-	Proxy connect
www.space.se		-	Proxy connect
big.bad.int		-	Proxy connect


Very well, Back to my search for a script that will work as advertised.

=============================================================
Using example 1 like going back to basics.
function FindProxyForURL(url, host)
 {
 if (isPlainHostName(host))
 return "DIRECT";
 else
 return "PROXY wwwgate.space.se:3128";
}

Using this, I get:

ntweb			-	Connect Direct
ntweb.space.se		-	Proxy connect
unixweb			-	Connect Direct
unixweb.space.se	-	Proxy connect
www			-	search.msn.com ???
www.space.se		-	Proxy connect
big.bad.int		-	Proxy connect

Once again almost there. Wonder why it prefers search.msn.com 
instead of using DNS for getting the IP and then getting connection refused
instead.
On the other hand, maybe I can live with .space.se being passed to teh proxy
server as long as I can connect to my outer webserver.
I then tried this:
=======================================================

function FindProxyForURL(url, host)
 {
 if (localHostOrDomainIs(host, "www.space.se"))
        return "PROXY wwwgate:3128";
 if (localHostOrDomainIs(host, "outer.space.se"))
        return "PROXY wwwgate:3128";
 if (localHostOrDomainIs(host, "www"))
        return "PROXY wwwgate:3128";
 if (localHostOrDomainIs(host, "outer"))
        return "PROXY wwwgate:3128";
 if (isPlainHostName(host))
        return "DIRECT";
 return "PROXY wwwgate.space.se:3128";
}


Using this, I get:

ntweb			-	proxy connect
ntweb.space.se		-	Proxy connect
unixweb			-	Proxy connect
unixweb.space.se	-	Proxy connect
www			-	Proxy connect
www.space.se		-	Proxy connect
big.bad.int		-	Proxy connect

Ooops, not really what I wanted. Just broke the application based on ActiveX.

Wonder why.
======================================
Ugly hack # 1


function FindProxyForURL(url, host)
 {
 if (isPlainHostName(host) &&
     !localHostOrDomainIs(host, "www.space.se") &&
     !localHostOrDomainIs(host, "outer.space.se"))
        return "DIRECT";
 else if (dnsDomainIs(host, ".space.se") &&
          !localHostOrDomainIs(host, "www.space.se") &&
          !localHostOrDomainIs(host, "outer.space.se"))
        return "DIRECT";
 else
        return "PROXY wwwgate.space.se:3128";
}


Using this, I get:

ntweb			-	proxy connect
ntweb.space.se		-	Connect direct
unixweb			-	Proxy connect
unixweb.space.se	-	Connect direct
www			-	Proxy connect
www.space.se		-	Proxy connect
big.bad.int		-	Proxy connect

Not exactly what I had expected. That's it. I am at wits end here. ANyone
care to come up with a solution that works as advertised ??

Tommy