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Re: WEBDAV and server request time out

From: Stefan Eissing <stefan.eissing@greenbytes.de>
Date: Fri, 16 May 2003 09:33:19 +0200
Cc: w3c-dist-auth@w3.org
To: Jeff Thompson <Jeff_Thompson@CoCreate.com>
Message-Id: <AA34B523-8770-11D7-B1DE-00039384827E@greenbytes.de>


are you sure that the request timeout affects uploading of large files? 
timeout values reflect inactivity on the connection. So the timeout 
strike when 90 seconds of inactivity are encountered.

When uploading large files, this timeout should not cut the connection, 
packets should continue to come, even from a slow connection, in smaller
intervals than 90 seconds.

Best Regards, Stefan

Am Freitag, 16.05.03, um 01:59 Uhr (Europe/Berlin) schrieb Jeff 

> I've been looking into WEBDAV and trying to understand how we might 
> make use of it. I've come up against an implementation issue that I 
> have not been able to find much information on. I thought I might be 
> able to get some enlightenment here.
> The issue concerns the uploading of very large files over slower 
> connections (i.e., cable modem).
> Our web server has a default request timeout of 90 seconds. I know how 
> to increase that. However, I heard some unsubstantiated rumor that 
> increasing this very much comprises security. I have not been able to 
> figure out the security implications of changing this value. I 
> recognize that there are some potential Denial of Service attacks by 
> allowing large files. A lengthly request timeout probably has some 
> Denial of Service problems.
> What considerations might be involved in raising the timeout to handle 
> large files?
> Is WEBDAV a viable solution for handling large files in these 
> circumstances?
> Thanks,
> Jeff
Received on Friday, 16 May 2003 03:33:49 UTC

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