Re: [squid-users] Squid WCCP and filters rules

 On Tue, 29 Mar 2011 16:34:04 +0200, gael therond wrote:
> Hi Amos,
>
> many thanks for your answer.
>
> I would like to deny cache for .flv and .swf file, Could I do that?
> Deny the complete youtube and dailymotion could be a solution, BUT
> there are
> not the only domains that I will have to deny, and if I need to deny
> cache
> for every video providers, I'll have a lot of job to do.
>
> PS: I'm in my lab domain, I'm testing the 3.2.0.5 version of SQUID.
>

 The way the "cache" access control is currently implemented in Squid it
 does not play nice for reply-based non-caching. That needs to be fixed,
 but there are other storage and handling problems holding us up.

 For now the refresh_pattern can be used to discard non-cacheables based
 on URL regex patterns. Sadly *after* they are already on disk. Just set
 the three time parameters to "0 0% 0" with a lot of the override-*
 options.

 You could also try setting a maximum object size on disk cached
 objects, flv/swf videos tend to be 2MB-50MB.

 FWIW: You have not actually said it but I get the impression you are
 struggling with speed problems handling the videos flowing through, yes?
 All of the Squid-3.x have shown slowdowns whether caching was enabled or
 not.

 Amos

> 2011/3/29 Amos Jeffries <squid3_at_treenet.co.nz>
>
>> On 30/03/11 01:54, gaël therond wrote:
>>
>>> Hi folks,
>>>
>>> I'm still dealing with some WCCP special question.
>>>
>>> All my Cisco's and squid stuffs are working well, Cisco is
>>> redirecting
>>> requests, and squid do the job.
>>>
>>> BUT I'm wondering me if the following rules are correct and able to
>>> be
>>> respected with the wccp protocol active on squid.
>>>
>>> acl streaming_media_rep rep_mime_type ^video/x-flv
>>> acl streaming_media_req req_mime_type ^video/x-flv
>>>
>>> cache deny streaming_media_rep
>>> cache deny streaming_media_req
>>>
>>> I'm trying to not cache youtube or dailymotion streams at all, but
>>> unfortunatly it seems to not be really efficent.
>>>
>>> As you can see below, squid is still handeling the flux:
>>>
>>>
>>> Is there someone who now, how to avoid youtube's video to be
>>> cached?
>>>
>>>
>> Caching descisions are made on the request details. So mime type is
>> too
>> late to work. Catching the User-Agent should work until they upgrade
>> YT away
>> from flash ...
>>
>> acl flash browser Flash
>> cache deny flash
>>
>> And of course the YT domains can be non-cached as a whole with
>> dstdomain.
>>
>> Amos
>> --
>> Please be using
>> Current Stable Squid 2.7.STABLE9 or 3.1.11
>> Beta testers wanted for 3.2.0.5
>>
Received on Tue Mar 29 2011 - 23:59:37 MDT