Our DNS resolves fast, about .045 seconds, so I don't think that is the
problem, however, I added the line:
if (!isResolvable(host))
return "PROXY proxy.example.com:3128";
to our proxy files, and our 25 Second browser lockup changed to a 4
second timeout.
Thank you very much for that tip. My users will be much happier!
I am looking now at "refining" and speeding up the processing of the file.
Brian
Adrian Chadd wrote:
> On Fri, Mar 09, 2007, David Gameau wrote:
>
>
>> >From my experience, each isInNet() statement produces a separate DNS
>> lookup.
>> What you want to do is use isResolvable(host) before hand to
>> short-circuit
>> those steps.
>>
>> For example (if you wanted unresolvable DNS lookups to be forwarded to
>> the
>> proxy, to generate a decent error page), you might use something like
>> this...
>>
>> function FindProxyForURL(url, host)
>> {
>> if ((isPlainHostName(host) ||
>> (dnsDomainIs(host, ".example.com"))
>> return "DIRECT";
>> if (!isResolvable(host))
>> return "PROXY proxy.example.com:3128";
>> if ((isInNet(host, "192.168.0.0", "255.255.0.0") ||
>> (isInNet(host, "169.254.0.0", "255.255.0.0") ||
>> (isInNet(host, "10.0.0.0", "255.0.0.0"))
>> return "DIRECT";
>>
>> return "PROXY proxy.example.com:3128";
>> }
>>
>
> Nice! Brian, let me know if this fixes your problem. I'll add it into
the Wiki
> if it does.
>
> And thanks David, I'm sure you've just saved a lot of people a lot of
time!
>
>
>
>
>
> Adrian
>
--
Brian Riffle
System and Network Administrator
Klamath Community College
7390 South 6th St
Klamath Falls, OR 97603
Phone 541.880.2245
Fax 541.885.7758
