hello guys
i have ubuntu server 10.10 with squid cache 2.7
i match it with mikrotik system with pppoe server and every thing work fine
now i want to get another connection
so i will have 2 modems
but i want to make one for browsing
and another one for downloading (exe,flv,mp3...etc)
how i can make every destination of them to do that ?
i need to know please
okay thanks every body

1) I'm not sure that squid knows about interfaces ...

2) extensions of different types will have to be url's that end in those types ... you'll find it easier to allow whole sites to go over the other interface.

3) in our system 1 have 3 squid caches (3 physically different boxes), 1 internal proxy with no direct access to the outside world, and 2 external proxies with one external interface on each.

I then use the "cache_peer" and "cache_peer_access" on the internal one to tell it which external proxy to point to for specific sites.

hello mate , the link u sent not contain what i want
i want to make isp for the downloading files and the other one for the browsing
and the upload from the both of them ...
how i can do ?

you can't easily.

browsing files and downloading files are the same thing ... only you know which is a download and which is a web page.

you don't know the file type until you start downloading, at which point the proxy server is kinda committed to getting the file in some way (although squid can do some checking based on this, I don't believe it can change the parent proxy when this happens)

Unless I'm mistaken it's not possible for you to ping download servers on a different interface to web servers using the ping command, and because of this it will be impossible for squid to do likewise.

the way we did it was to separate the interfaces (you could probably do this in zones or containers) and run squid on those separate interfaces. then have a further squid that uses those squids as parent caches.

if i can know which is the download and which is the webpage so i can separate every one on another isp
so how i can do this ??

If you know which is a download and which is a webpage (which I don't ... I use site lists and send specific sites to one ISP)

I have 3 physically separate squid servers ... if you want to virtualize you will need to ask somewhere specific for your platform ... I use Solaris mainly.

2 squid servers are set up as normal squid proxies ...

1 squid server has "cache_peer"'s defined:

--
cache_peer isp1 parent 3128 3130 default allow-miss no-query
cache_peer isp2 parent 3128 3130 no-query

cache_peer_access isp2 allow download-sites
cache_peer_access isp2 allow download-sites2

cache_peer_access isp1 deny download-sites
cache_peer_access isp1 deny download-sites2

always_direct allow our_networks
never_direct allow all

--

isp1 is the default (non-download) isp, download-sites and download-sites2 are ACL's defined above ...