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Old 02-07-2007, 12:49 PM   #1
Registered: Feb 2004
Location: SoCal
Distribution: OpenBSD, Ubuntu, RedHat, Fedora Core, OpenSuse
Posts: 57

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Squid WPAD proxy getting TCP_DENIED/400 Invalid-request

I have setup WPAD for a non-transparent Squid proxy server using the DNS aliasing method. Port is 3128. I have some users working fine with "automatic detect proxy" checked in Internet Explorer and some that returns TCP_DENIED/400 Invalid-request in the squid access.log file.
When I look at the "Temporary Internet Files" on the PC, it keeps on downloading this file wpad.dat file and the content of that file display this:

The following error was encountered:

Invalid Request
Some aspect of the HTTP Request is invalid. Possible problems:

Missing or unknown request method
Missing URL
Missing HTTP Identifier (HTTP/1.0)
Request is too large
Content-Length missing for POST or PUT requests
Illegal character in hostname; underscores are not allowed

Generated Wed, 07 Feb 2007 18:35:59 GMT by (squid/2.6.STABLE9)

On the PC that are working correctly with WPAD, it downloads http://ipaddress/wpad.dat file where it can be found in the "Temporary Internet Files"

Any help is greatly appeciated...



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