[squid-users] Failover to upstream when direct link down

We currently have a direct connection to the internet and a connection
to an upstream proxy via a separate connection. The majority of our
users connect to a downstream proxy which connects to our squid 2.7 on
openSUSE 11.3 which then forwards these requests to the upstream proxy.
The rest of our users connect directly to squid and have their requests
serviced by the direct connection.

Direct Upstream
        \ /
         \ /
           Squid
         / \
        / \
Users Downstream
                      \
                       \
                    Users

The direct connection occasionally drops out and so in this situation I
would like ALL requests to be serviced by the upstream proxy until the
problem is resolved and then switch back to the current running config

A search of the archives suggest that this isn't available natively in
squid but I thought I'd ask to see if anyone else has this situation or
knows of a solution

Thanks

Paul
Received on Wed Nov 17 2010 - 20:39:56 MST