I'm hoping someone from Ars has faced the same problem and found some kind of solution.Thanks again for all the ideas so far. Perhaps a program that works in conjuction with squid could do this, but I've never heard of one. So I guess what I really need is a way to re-write HTML on the fly to remove alt text references from links that point to a denied site. The filters in place now actually work remarkably well with the exception of the alternate text.In viewing the HTML source, I can see the alternate text listed there. ![]() I could "solve" the problem by blocking the sites outright, but that's too draconian and it blocks legitimate content in many instances. The alternate text can be pretty racy, though, and there have been objections to this. ![]() the squid server is a transparent proxy), so the users are generally unaware that content is being filtered at all (except when they try to go where they shouldn't and the images fail to load). ![]() ![]() with the latest security patches that may have come out after ISO has been. Making any changes at the browser level is not really an option for a couple of reasons: (1) the proxy server serves many different machines which, in turn, run a variety of browsers and (2) we're dealing with a young population that would readily unset any restrictions if they could (at the client level).They way it is now, all outgoing port 80 stuff gets redirected at the gateway through the squid server (i.e. server running Squid and deploy web filtering application on it saving.
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