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anonymous1902

External


Since: May 18, 2004
Posts: 1



(Msg. 1) Posted: Tue May 18, 2004 2:16 pm
Post subject: HTTP 400 - Bad Request
Archived from groups: microsoft>public>inetserver>iis (more info?)
We are currenlty in a testing phase on an ASP.NET / C# project and have encountered the "HTTP 400 - Bad Request" error. This only happens for one client.

Our logs only report the following:
2004-05-10 06:56:37 xxx.xxx.xxx.xxx - W3SVC5 FENWEBMLMS03 xxx.xxx.xxx.xxx 80 - - - 400 87 224 585 0 - - - - -

We have gathered the following information from him:
OS: Windows 2000
Browser: IE 5.50
Other Software: SpyBot
Firewall: We can assume that he is behind a firewall.

The only possible causes for this that we have been able to find are:
1. Packet Corruption (which doesn't seem likely)
2. Norton Personal Firewall interference (which he does not have installed)
3. Proxy problem because of the differences between HTTP 1.0 / 1.1 (I am not sure how to test this though)

Is there anything you can think of that may help in debugging this issue?

 >> Stay informed about: HTTP 400 - Bad Request 
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someone9

External


Since: Aug 25, 2003
Posts: 2419



(Msg. 2) Posted: Wed May 19, 2004 12:44 am
Post subject: Re: HTTP 400 - Bad Request [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
Use NetMon or Ethereal and take a network trace at the server to determine
the EXACT request sent by the user which results in a 400 Bad Request. Post
the capture here, and we can have a look.

--
//David
IIS
This posting is provided "AS IS" with no warranties, and confers no rights.
//
"Joshua" <anonymous.TakeThisOut@discussions.microsoft.com> wrote in message
news:F07AA460-F3F4-4ACE-B6EF-B305AC7E7DC0@microsoft.com...
We are currenlty in a testing phase on an ASP.NET / C# project and have
encountered the "HTTP 400 - Bad Request" error. This only happens for one
client.

Our logs only report the following:
2004-05-10 06:56:37 xxx.xxx.xxx.xxx - W3SVC5 FENWEBMLMS03 xxx.xxx.xxx.xxx
80 - - - 400 87 224 585 0 - - - - -

We have gathered the following information from him:
OS: Windows 2000
Browser: IE 5.50
Other Software: SpyBot
Firewall: We can assume that he is behind a firewall.

The only possible causes for this that we have been able to find are:
1. Packet Corruption (which doesn't seem likely)
2. Norton Personal Firewall interference (which he does not have
installed)
3. Proxy problem because of the differences between HTTP 1.0 / 1.1 (I am
not sure how to test this though)

Is there anything you can think of that may help in debugging this issue?

 >> Stay informed about: HTTP 400 - Bad Request 
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mark10

External


Since: Apr 22, 2004
Posts: 6



(Msg. 3) Posted: Wed May 19, 2004 8:40 am
Post subject: Re: HTTP 400 - Bad Request [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
 > We are currenlty in a testing phase on an ASP.NET / C# project and =
have encountered the "HTTP 400 - Bad Request" error. This only happens =
for one client. =20
 >=20
 > Our logs only report the following:
 > 2004-05-10 06:56:37 xxx.xxx.xxx.xxx - W3SVC5 FENWEBMLMS03 =
xxx.xxx.xxx.xxx 80 - - - 400 87 224 585 0 - - - - -
 >=20
I would try grabbing the request somehow to find out what is causing IIS =
to return the 400 error. You can use the windows network monitor =
driver, windump, etc to do this. Alternatively I've got an ISAPI filter =
at <a style='text-decoration: underline;' href="http://www.blushingpenguin.com/RequestFilter.html" target="_blank">http://www.blushingpenguin.com/RequestFilter.html</a> (source is around =
as well) that basically spits out the entire request/response stream to =
a log file. It has a little filtering language so that you can filter =
on IP/script name/host etc if necessary.

After you've got the request data, if you can't figure out what's wrong =
from that, post it here.<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: HTTP 400 - Bad Request 
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