I used the /etc/hosts trick for a while.  I had problems with some sites.
Even slashdot.org.  If it tried to load a page with a (blocked) doubleclick
ad in it it would bring up 404 and going back would try to load the ad again
and send you to the 404 again.  I would keep going back until slashdot gave
me a different ad or I gave up and went to a different site.  

Lynx works fine though, so it's mostly a browser thing.  I haven't tried it 
with mozilla or konqueror but I suppose I could sometime. 

Tim

On Wed, Aug 23, 2000 at 10:38:00AM -0500, Dave Sherohman wrote:
> Thomas T. Veldhouse said:
> > I believe that blocking doubleclick can cause may sites to fail completely.
> 
> (I'm not sure if that was a joke or not, but...)
> 
> I use junkbuster and have seen it and similar blocking proxies recommended
> many times.  I've seen requests for ipchains rules to block doubleclick and
> suggestions to use dummy entries in /etc/hosts or (for those who use them)
> local DNS servers to reroute doubleclick.net to localhost.
> 
> But I have never seen it suggested before that any of these things could
> cause sites to stop working entirely, much less the names of any sites
> adversely affected by them.  (Except sites hosted on doubleclick itself, of
> course.)
> 
> If you're serious, what is your statement based on?  Which sites are liable
> to fail and why?
> 
> -- 
> "Two words: Windows survives." - Craig Mundie, Microsoft senior strategist
> "So does syphillis. Good thing we have penicillin." - Matthew Alton
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> 
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