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Home > Archive > IIS Server Security > January 2007 > Win2K3 Integrated Authenticaton and file download issue?
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| Author |
Win2K3 Integrated Authenticaton and file download issue?
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| Dan Marsden 2007-01-31, 7:19 pm |
| We have an issue on a Win2k3 Virtual Server sitting on a VMWARE box with
Integrated Authentication.
When Integrated Auth is turned on, sometime (not always!) large files get a
time-out message when you try to download them. In fact, it even happens
with some smaller files (but inconsistently). But - the weird part is If we
go back to basic authentication, the problem goes away!
We did a Network Trace on what is being transferred and it appeared that the
files *are* being completely downloaded but the client(IE 6) rejects them
with an error message.
Anyone have any ideas?
Thanks!
Dan
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| David Wang 2007-01-31, 7:19 pm |
| Client side timeout usually indicates that the client failed to
retrieve the expected number of bytes of response within the client's
alloted time.
If you see evidence with a Network Sniffer that the server transferred
all the bytes it claims to send via Content-Length: response header
(or chunked encoding terminating chunk), then clearly the server met
the contract to the client... why the client times out is a client-
side concern.
Can you reproduce this outside of a Virtual Server within VMWARE (I
think Microsoft only supports running Windows within MS Virtual
Server)?
Can you reproduce this with another browser under Integrated
Authentication?
//David
http://w3-4u.blogspot.com
http://blogs.msdn.com/David.Wang
//
On Jan 31, 3:15 pm, Dan Marsden <DanMars...@discussions.microsoft.com>
wrote:
> We have an issue on a Win2k3 Virtual Server sitting on a VMWARE box with
> Integrated Authentication.
>
> When Integrated Auth is turned on, sometime (not always!) large files get a
> time-out message when you try to download them. In fact, it even happens
> with some smaller files (but inconsistently). But - the weird part is If we
> go back to basic authentication, the problem goes away!
>
> We did a Network Trace on what is being transferred and it appeared that the
> files *are* being completely downloaded but the client(IE 6) rejects them
> with an error message.
>
> Anyone have any ideas?
>
> Thanks!
>
> Dan
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| Dan Marsden 2007-01-31, 7:19 pm |
| Thanks David,
We haven't managed to re-produce using a standard install outside VMWARE -
Will ask the team involved to try NTLM with IE7 and FF - it's a hard one to
reproduce all the time because it's intermittent!
any other ideas would be appreciated!
thanks,
Dan
"David Wang" wrote:
> Client side timeout usually indicates that the client failed to
> retrieve the expected number of bytes of response within the client's
> alloted time.
>
> If you see evidence with a Network Sniffer that the server transferred
> all the bytes it claims to send via Content-Length: response header
> (or chunked encoding terminating chunk), then clearly the server met
> the contract to the client... why the client times out is a client-
> side concern.
>
> Can you reproduce this outside of a Virtual Server within VMWARE (I
> think Microsoft only supports running Windows within MS Virtual
> Server)?
>
> Can you reproduce this with another browser under Integrated
> Authentication?
>
>
> //David
> http://w3-4u.blogspot.com
> http://blogs.msdn.com/David.Wang
> //
>
>
>
> On Jan 31, 3:15 pm, Dan Marsden <DanMars...@discussions.microsoft.com>
> wrote:
>
>
>
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