RE: [squid-users] NTLM issues *Pretty long*

Hi, Jan:

Thanks for the reply. I did check, and we are experiencing the same on
an IE5 machine. Since that's not been identified as one of the problem
browsers, I don't think we're experiencing the same thing.

I'm getting the popup a lot - maybe 3 to 4 times per page, due to the
different graphics and buttons and things. (Like I said, I'll get the
first few portions of a page, then a popup or two, then a few more
portions..).

Dave

--
Dave Robinet  (dave.robinet@magnasteyr.com)
IT Manager - Magna Steyr Engineering Center Detroit
Ph: 248-293-0206        Fax: 248-299-5711
>-----Original Message-----
>From: Jan Heyelmann [mailto:gonzo@muhme.net] 
>Sent: Wednesday, January 28, 2004 1:26 PM
>To: David Robinet
>Cc: squid-users@squid-cache.org
>Subject: Re: [squid-users] NTLM issues *Pretty long*
>
>
>Hello David,
>do you experience the same problem when using IE 5.5 or IE 6 without 
>SP1? If not, you might want to look at MS KB 820780. Following is a 
>quote from that article.
>
><quote>
>MORE INFORMATION
>If the "401" response page content is smaller than 1460 bytes, 
>Internet 
>Explorer closes the current connection and tries to re-use a previous 
>connection from the keep-alive pool for that server. Because 
>ISA (or any 
>other proxy) has closed the related connection between ISA and the IIS 
>server, the re-use of the Internet Explorer connection does 
>not work. As 
>a result, Internet Explorer produces an authentication prompt.
>
>When the "401" response page is larger than 1460 bytes, Internet 
>Explorer must maintain the current connection so that it can drain the 
>socket of all pending data. This causes Internet Explorer to 
>re-use this 
>socket for the later NTLM authentication traffic. As a result, the 
>connection works seamlessly.
></quote>
>
>The number of popups was reduced when applying the MS hotfix, but the 
>problem was not entirely resolved. Maybe someone with more 
>knowledge of 
>the ntlm communication could comment on the above quote. Could it be 
>that this is the reason why we get those authentication popups and is 
>there a way to get rid of this?
>
>Jan
>
>
>David Robinet wrote:
>> Thanks, Henrik.
>> 
>> I've literally pulled an all-nighter trying to get Squid up and 
>> running (I'd managed to figure that out - after several hours of 
>> looking at documentation, "Squid" and "Samba" began to look the same 
>> and I was reading "Squid" documentation).
>> 
>> I've got authentication working for the most part. What I'm now 
>> experiencing is that it pops up the 3 box authentication prompt 
>> frequently, but not always. In other words, loading up www.yahoo.com 
>> might pop up the authentication box 4 times - it will load most 
>> graphics and maybe the top part of the HTML, for example, 
>but it will 
>> ask for authentication over and over again.
>> 
>> I've tried increasing the helper children to 15 (I was at 
>5), but that 
>> didn't seem to help.
>> 
>> The log file looks like this (partial, with comments):
>> 
>*snip*
>