Re: [squid-users] Squid delay pool question

Hi All,

Thanks Amos and Chris for your time and help, I have few more questions so I
will appreciate it so much if you can please take a look at them

A. As a start to avoid confusion here are some facts regarding our server
and users
- All of our users connect to our proxy (SQUID) through an application. This
desktop application contains built-in (User name / password) for
authenticating each of our users to use our SQUID proxy (installed on our
server) AND also contains the IP of our server (which have SQUId installed
on it)

- Our users come from many different locations around the world and many of
them (most of them actually) don't have 'static Ip's so I can't setup
specific range of IP's

- We have more than 100,000 registered users (beside those whom will
register in the future) from different locations around the world. Of course
not all of them will login together at a specific moment, but many of them
can be on the server at the same moment and this was one of the major
reasons why we need to regulate SQUID traffic usage

B. Even though I have read info about classes 1,2,3,4 I can't understand up
to this moment which will be better for us? So based on the info I just
provided in A, do you have any recommendations especially when taking in
consideration the amount of users we have

C. delay_parameters 1 -1/-1 1310720/15728640
>>> isn't -1/-1 is for unlimited access? i mean can you please explain this
>>> rule so I can understand its limitations?

Thanks in advance for your time and help

Regards

Chris Robertson-2 wrote:
>
> mikewest09 wrote:
>> Hi all,
>>
>> I've installed Squid 3 on our server (connected to a 100 Mbps connection)
>> which contains our website and Squid. Now what I hope to do in order to
>> avoid having the bandwidth sucked by one user, is that limit the
>> bandwidth
>> usage under Squid so that at any given time a user can download/use a
>> maximum of 15 MB with the speed 100 Mbps, after which the speed drop
>> automatically for this specific user to 10 Mbps
>>
>> I've read that this can be done using delay pools, although after reading
>> few articles I can't figure out till now which 'class' (i.e. 1 or 2 or 3)
>> to
>> apply for the delay pool I am going to setup and what will be the best
>> way
>> to write the delay pool rule in order to apply the above limitation
>>
>
> For limiting individuals, you will want a class 2, 3 or 4 pool*.
>
>> So can someone here please help me and show me how I can write the delay
>> pool(s) necessary to apply the limitations mentioned above?
>>
>
> Sure thing. I'm going to assume that you are not using authentication
> and that your Squid server is not hidden behind NAT from those who are
> going to use it (each user will hit Squid from a unique source IP).
>
> # Define one delay pool
> delay_pools 1
> # Specify delay pool 1 is class 2
> delay_class 1 2
> # Give the aggregate no limit, individuals a 15MB bucket, and a refill
> rate of 10Mbit/sec
> delay_parameters 1 -1/-1 1310720/15728640**
>
>> Another question, will the limitation I plan to do here using delay pools
>> affect the normal bandwidth of our website?
>>
>
> It can, but doesn't have to. If your domain is example.com...
>
> acl mydomain dstdomain .example.com
> delay_access 1 deny mydomain
> delay_access 1 allow all
>
> ...would prevent delay pools from affecting access to any site in the
> example.com domain, where...
>
> delay_access allow all
>
> ...would affect all requests made through your proxy.
>
>> P.S. I am not experienced in networks
>>
>> Thanks in advance for your time
>>
>
> Chris
>
> * Using authentication credentials (class 4) is easy if you are already
> requesting authentication from your users. If you are not using
> authentication, that just means we'll identify users by IP (class 2 or
> 3). You can also use an external_acl_type to set a tag and base your
> delay on that (with a class 5 pool), but that's probably more complexity
> than you are interested in.
>
> ** Depending on how the source defines bytes, this number might have to
> be 15360000 (15 * 1024 * 1000) or even 15000000 (15 * 1000 * 1000) to be
> exactly 15MB. The documentation is unclear on this point. The conf
> file states that 8000 = 64kb, but the example in the wiki
> (http://wiki.squid-cache.org/Features/DelayPools, under the heading "How
> do you personally use delay pools?") uses 1024 bits/kbit.
>
>
>

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