[PLUG] Blacklist in Browser?
plug_0 at robinson-west.com
plug_0 at robinson-west.com
Wed Aug 3 01:50:44 UTC 2005
Quoting Aaron Burt <aaron at bavariati.org>:
> On Mon, Jul 25, 2005 at 08:40:43AM -0700, Charles Sliger wrote:
> > Looking for a browser that lets you maintain a blacklist.
>
> Blacklist of what? You ain't paying me enough to read your mind, man.
>
> > I would like to be able to maintain the blacklist in much the same way
> that
> > bookmarks are maintained.
>
> If you mean a blacklist of websites, I'm sure you could use Adblocker
> in FireFox, and there may even be an extension especially for the
> purpose. Of course, someone who's even mildly technical (e.g. nearly
> anyone younger than 18) would probably be able to find a way around it.
> See: https://addons.mozilla.org
>
> If you need a real web-filtering system, use DansGuardian, either on
> the box as a daemon or on a separate router. (I think IPCop supports it.)
I'm against Dansguardian. It's a neat idea, but you can't always go through
a proxy and it has blocked the wrong sites on me many times. A lot of web
sites can't be accessed through a proxy at all and proxis are difficult to
set up. A more sensible approach for a blacklist is to intercept dns packets
and evaluate the URL in them. If that URL is on a blacklist, send back a
response that points to a local browser instead. All one needs to do is
run a local dns server that supports blacklisting and perhaps dynamic
updates, then force the local users to use it. This approach isn't a proxy
solution, it's a dns one. Not to mention, you could restict what web sites
can be accessed to those on a trusted list. Apparently there is a supposed
to be a way to implement something like this using netlink and xinetd.
A more elegant solution is a blacklist record much like the A record
in bind.
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