dhcp + wpad + firefox
Glenn.Satchell at uniq.com.au
Wed Aug 15 12:52:36 UTC 2007
This is what I've had in my dhcpd.conf for years. Works well with IE and FF.
# Windows systems accept the WPAD option for setting up their proxy server
# (Autodetect proxy settings):
# (According to Ted Lemon, "text" will get the Microsoft
# NUL termination bug heuristic applied, and "string" won't!
option wpad-curl code 252 = text;
option wpad-curl "http://proxy.uniq.com.au/proxy.pac\000";
The \000 is to get around an old Microsoft bug where the last character
>Subject: RE: dhcp + wpad + firefox
>Date: Wed, 15 Aug 2007 10:04:36 +0100
>From: "Alex Sharaz" <A.Sharaz at hull.ac.uk>
>To: <dhcp-users at isc.org>
>I've got a load balanced wpad service set up here using 3 servers front
>ended by a Foundry ServerIron which does load balancing across the 3
>real servers. All works just fine for IE but not for firefox. The beta
>safari browser I'm using also seems to work.
>I've got wpad.hull.ac.uk set up as a virtual host on each of the 3
>In my dhcpd.conf file I've got
>option wpad-url code 252 = text;
>option wpad-url "http://wpad.hull.ac.uk/wpad.dat";
>I've got a number of log files set up on the real servers :-
>One for each virtual host
>One for a "default" server if someone tries to access the server via its
>It looks as if IE access wpad.hull.ac.uk/wpad.dat ( unless you've got an
>old version of ie6 that asks for wpad.hull.ac.uk/wpad.da )
>However as far as i can see, firefox seems to resolve the domain into
>its ip address and then ask for http://a.b.c.d/wpad.dat, at least i
>think it does that coz there are an awful lot of http requests going
>into the default server.
>Anyway I can't seem to get firefox to work with autodetect proxy
>From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org] On
>Behalf Of Sameh Attia
>Sent: 15 August 2007 09:15
>To: dhcp-users at isc.org
>Subject: Re: dhcp + wpad + firefox
>We have this setup working with both FF and IE with option 252 too.
>The DHCP is one component of this setup. Other is ur web server, ie.
>Give us more details.
>On 8/15/07, Eduardo Henrique <dupotter at gmail.com> wrote:
>> the mozilla firefox don't work with wpad in the dhcpd.conf.
>> somebody already tested this solution?
>> (my english is not very good)
>> Eduardo Henrique (dupotter).
>The two basic principles of Windows system administration:
> * For minor problems, reboot
> * For major problems, reinstall
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