Re: [squid-users] acl maxconn per file or url

On Mon, 29 Jun 2009 18:50:30 -0700 (PDT), Chudy Fernandez
<chudy_fernandez_at_yahoo.com> wrote:
> I think this well help
>
> acl maxcon maxconn 4
> acl partial rep_header Content-Range .*
> http_reply_access deny partial maxcon
>

I wonder....

What this _does_ is cause replies to be sent back to the client with all
range encoding and wrapping, but without the range position information or
other critical details in the Content-Range: header.

That is a very strange state for a reply to be in, the effect may be that
the client drops the request and tries again, or that it confuses the
partial response with a full response and fubars the users download.

This does not prevent Squid from fetching the multiple requests for ranges
in the first place, nor save any bandwidth used by Squid doing so.

Amos

>
> ----- Original Message ----
> From: Henrik Nordstrom <henrik_at_henriknordstrom.net>
> To: MonzT <Brave_Monz_at_hotmail.com>
> Cc: squid-users_at_squid-cache.org
> Sent: Tuesday, June 30, 2009 4:23:50 AM
> Subject: Re: [squid-users] acl maxconn per file or url
>
> sön 2009-06-14 klockan 06:23 +0300 skrev MonzT:
>> I want to know if there is any way to limit maximum connection per FILE
>> or
>> URL not just client ip.
>
> Not in squid, at least not without first adding the feature.
>
>> The usual 'maxconn' command limits connection by ip which is not what we

>> want in most cases, because some browsers make multiple connections to
>> get
>> the whole page and this doesn't affect the bandwidth as these
connections
>>
>> are for small objects,
>
> Because the user have once installed a "download accelerator".. most
> these change the registry settings to pretty much unlimited concurrent
> connections from the default 2..
>
>> the problem is when some one download a 1.5 GB file with 16 connection
>> using
>> IDM or Flashget or something,
>
> Yes.
>
>> I think limiting connection per file or requested url will be the best,
>> so I was wondering if there is any way to achieve this, or any hint to
>> edit
>> source code
>
> Regarding source I think a good starting point is to look at the maxconn
> acl. The big part is coming up with a method for detecting these
> concurrent requests correctly. Discussions on this is best done on the
> squid-dev list.
>
> Regards
> Henrik
Received on Tue Jun 30 2009 - 03:13:30 MDT