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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: tomcat on windows 2012 weirdness
Date Wed, 17 Dec 2014 22:40:50 GMT
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Cris,

On 12/17/14 2:15 PM, Cris Berneburg - US wrote:
> Ameer (and Chris)
> 
> I discovered something else.  When accessing the internal web site
> by name, it does not work right.  But when I access the web site by
> IP address, it functions correctly!
> 
>> If you are using IE9, it has a very useful utility in its
>> developer tool to capture network traffic. Few simple steps to
>> capture it: Press F12 --> Go to network tab--> start capturing
>> You can save/export the captured data in an xml file and then can
>> see everything going to-and-fro between your browser and server.
> 
>> Compare the traffic when you are communicating from localhost, 
>> which you say is working fine, with the traffic when you are 
>> accessing from an outside client. Pay special attention to the 
>> headers section of the HTTP calls.
> 
> Thanks for your suggestion.  I tried the IE9 Developer Tools
> trace, and it was revealing.  I noticed something strange.
> Accessing the web server by IP, the User-Agent was "Mozilla/5.0",
> but by server name User-Agent was "Mozilla/4.0".  There are other
> header differences too.  By IP has the session and cookie info, but
> by name does not - aha!  The "Accept" header was different also.
> 
> I interpret this to mean that my local IE browser thinks the
> intranet web site that I access either by name or by IP is actually
> 2 different sites in 2 different security zones.  I will try to
> adjust my browser security settings and see if that makes any
> differences.

That sounds plausible. If IE changes its cookie policy based upon
those zones, then you may have found the issue. I wonder if your local
policy whitelists a certain IP range but doesn't use hostnames, which
may account for the difference.

Time to ask your webapp software vendor to fix their web application
so it can be used without cookies ;)

- -chris
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