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Re: Squid and Windows Update

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>
> squid3@xxxxxxxxxxxxx wrote:
>>> That's what we do and it works very well. We do the same for common
>>> antivirus update sites too. :-)
>>>
>>> Just a thought on WindowsUpdate via squid though, it's very very slow
>>> through squid. Seems to take
>>> many minutes to check for updates, but when bypassing the proxy this is
>>> not the case. I wonder if
>>> this is normal for squid?
>>>
>>>
>>
>> It is a side effect of WindowsUpdate that has been seen before on
>> occasion
>> under some squid configs.
>>
>> WindowsUpdate apparently pulls its data from the main servers using
>> partial Ranges. Squid does not to my knowledge fully support storage of
>> partial ranges (we have plans to improve this but no sponsor yet I
>> think).
>> Also some configurations are set to always pull the entire file when a
>> range is requested.
>> The cachability settings of the WU servers may also be a factor.
>>
>> If your config has been set to always pull the entire file and cache it,
>> you could try allowing squid to pull ranges and not cache them.
>>
>>
>> Amos
>>
>>
>
> Thanks for that Amos. Can anyone please point me in the right direction
> to documentation about configuring such features? The WU issues probably
> needs expanding upon in the FAQs I guess. :-)
>
> Thanks in advance.
> Dietrich
>

The relevant squid.conf settings I know of are: http_access and range_offset.

Earlier posts here in squid-users or google may have better details.

I have just added a FAQ page
(http://wiki.squid-cache.org/SquidFaq/WindowsUpdate) with the content of
this thread.

Amos



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