Hello, there.I am an unfortunate subscriber of a dreadful ISP here in Argentina. Before explaining my problem, I should mention that switching over to some other ISP is not an option, as there aren't any in my area. Also, their customer support has always been non-existent; their employees are in fact on strike right now, so complaints are just getting piled.
There's a transparent proxy that is misconfigured (maybe it's on purpose because of the strike, nobody knows; pity us). Sometimes everything works just fine, some others, I don't get any packets back from the proxy so I can't browse some or any sites.
To circumvent this, I have a handful of Squid servers with better lines I can peer with, and they work just fine. The problem is that the bandwidth that they offer me is much less than the one I'd have with a direct connection. Therefore I'd like to configure my ISP's transparent proxy as a peer (the first one), plus a never_direct line; and make squid detect when it's returning zero sized replies and temporarily disable it as if it were down all together.
As for the first part, that's easy since the firewall intercepts anything with dst port 80, so I added a peer with this stateful firewall's IP address, HTTP port 80, disabled ICP and configured it as a parent.
But I don't know about the second part: detecting when it's "down". It is "sort of down", since it will reply pings et al, but no HTTP packets will come back from it until it's back into normal operation.
Any tips will be appreciated. Thanks in advance.Cheers,
-- redondos
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