[Sderby] squid proxy servers?

Fri Feb 14 09:14:01 2003

Hi there

the problem with requests is - its just a request,  the proxy doesn't know how large the response is going to be.  

Directing requests via a secondary outbound connection can be achieved by using two web browsers with different proxy settings.  Then its up to the user to decide whats big and what isn't and use the appropriate browser.

I've not thought or seen an automated way to do this..

One of the reasons the satellite link may slow down is latency,  the inherent delays in the exchange of packets over the connection.  I don't know what the capacity of the downlink from the satellite actually is,  but with only four concurrent connctions it sounds odd that it should slow to a crawl.

If you are in a village and can get NTL broadband then hiding all your devices behind a proxy or linksys router as Ashley describes works and NTL will have no idea how many devices you have hidden behind it.

"Graeme Phillipson" <graeme@charndyn.com> wrote:

>Hello,
>I've already set up NAT with a firewall, you get static 'real' ips with the
>satalite, so it would be a bit of a security risk not to use it. Didn't use
>linux though, linksys make a router for home networks which is only 60 quid,
>so it was cheaper than a second hand box to run linux on. I've got a box
>which I can use to run a proxy on, and the idea was that would do the
>sorting , big filkes over satalite small ones over ISDN.
>I've been looking into squid, and I cant really see any way of doing this
>myself myself.
>
>However, I know some ISPs use a 'transparent proxy' where the router
>redirects everything to the proxy, does anyone know how to do this, I was
>thinking I could redirect everything to a webserver, adn write a python
>script to do the job. I'm not very familer with messing with routing, above
>setting up NAT (and I usually use nice graphical tools to do that). Does
>anyone know much about that?
>
>Thanks,
>Graeme.
>
>----- Original Message -----
>From: "Ashley Heath" <aheath@clikmail.net>
>To: <sderby@mailman.lug.org.uk>
>Sent: Monday, February 10, 2003 6:12 PM
>Subject: Re: [Sderby] squid proxy servers?
>
>
>> Hi Graeme,
>>
>> Not sure if squid could do what you ask, haven't gone into that much
>detail with it, but would be interesting to know if it could do it.
>>
>> Depending on what you want to achieve, if you have a spare box you could
>>
>> a. configure it with squid and proxy all http/ftp requests through it
>> b. set up IP forwarding and use NAT
>> c. both of the above
>>
>> This will allow you to hide all other computers on your network, it will
>appear as if all requests originate from the same machine, keeping you below
>the limit.
>>
>> Ash
>>
>> On Mon, 10 Feb 2003 12:04:35 -0000
>> "Graeme Phillipson" <graeme@charndyn.com> wrote:
>>
>> > Hello All,
>> > I've not posted to this list before, so I suppose I should introduce
>myself.
>> > I use linux at work (www.codamotion.com), but as a programmer, not a
>system
>> > adminisrator. However I get roped into that all the time.
>> > We've been struggling getting a BT openworld satalite connection to work
>> > (we're in a little village, no adsl, and ntl won't sell to bisnesses
>here).
>> > It says it only supports 4 computers, and it would appear they *really*
>mean
>> > it. I thought maybe it would only be for support purposes, but if you
>make
>> > more than 4 simutaions connections the speed of all of them drops to
>around
>> > 0.3Kbs.
>> > I'm wondering if it would be possible to configure squid to forward
>requests
>> > differently depending on size, small requests would go over our ISDN
>line,
>> > and big (say <500KB) would get forwarded to the proxy box that BT have
>> > provided. Has anyone tried to do anything like that before?
>> > Any help would be appreciated.
>> > Thanks,
>> > Graeme Phillipson.
>> >
>> >
>> >
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