Re: Very slow network speeds with proxy.pac scripts with a(n) internal/local proxy server.

[Ant]

Interesting. 64-bit Mac OS X 10.7.x clients, even with IPv6 support, do
not have this slow down problem with Apache proxy setup with PAC
scripts. Weird. Also, it happens in Windows 8 as well. :(


On 6/14/2012 5:15 PM PT, Ant typed:

> Hi!
>
> I am trying to figure out why using simple/basic proxy.pac files with
> two different Intranet computer, acting as temporary web and proxy
> servers, make network speeds very slow for web even if the web sites are
> internal on LAN (Intranet). Web pages pause/hang and download speed is
> horrible like 300-2400 dial-up modems! If I don't use proxy.pac and just
> connect directly to the proxies, then they are fast but I want to use
> the PAC scripts.
>
> My proxy.pac files hosted on two different separate small Windows web
> servers on Windows XP (Pro.'s IIS[web for proxy.pac file]+Squid[proxy]
> and Apache [both proxy and web with proxy.pac]. An example of a
> proxy.pac file from Squid+IIS:
>
> function FindProxyForURL(url,host)
> { if(isPlainHostName(host)||
> isInNet(host,"192.168.0.0","255.255.0.0")) return "DIRECT";
> else return "PROXY 10.147.30.159:3128";
> }
>
> I want all network traffics go through the proxy server. Nothing go in
> and out around it. Hence 192.168.0.0 part.
>
> I also noticed Windows XP clients are faster in terms of download and
> shorter hangs/pauses. Vista and Windows 7 are way worse and sometiems
> forever like overnight! I also found out that disabling Vista and W7's
> IPv6 network make them faster like XP. XP doesn't come with IPv6 by
> default. Also, I don't use or need IPv6 at this time.
>
> Is there a way to improve this? This proxy server is just for internal.
> Nothing fancy. Thank you in advance. :)
--
Phillip Pi
Senior Software Quality Assurance Analyst
ISP/Symantec Online Services, Consumer Business Unit
Symantec Corporation
www.symantec.com
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