Re: IP address blocked on certain site

["Geoff Down" <geoffdown@xxxxxxxxxxxx>]

On Thu, 03 Feb 2011 15:30 -0600, "Joe Btfsplk" <joebtfsplk@xxxxxxx>
wrote:
> On 2/2/2011 5:54 PM, Geoff Down wrote:
> >   I came to the conclusion that it
> > was Polipo cacheing. You can try inserting a 'Pragma: No-cache' header
> > using Modify Headers or a similar addon, though that does make you stand
> > out.
> >
> Not sure what you mean by "pragma:  No-cache" header.  How to go about 
> it, & will it (negatively) affect access to, or speed of other site, or 
> other issues?  Or can this header be targeted to a specific target site?
> 
> Is Modify Headers a Firefox addon, or vidalia / Tor addon?
 It's a Firefox Addon and it modifies/filters/inserts HTTP headers into
 the requests Firefox makes. Alterations can be enabled and disabled
 with a click, so you can disable them when not needed.
Headers sent by the browser control which pages are cached. See
http://www.faqs.org/rfcs/rfc2068.html
Section 14.9 Cache-Control
and http://en.wikipedia.org/wiki/Web_cache#Cache_control

> If didn't use your suggestion (don't know what exactly is involved, or 
> ramifications), which folder / file contains Polipo's cacheing of IP 
> addresses?
> I don't find a Polipo cache file.
> 

Neither could I. It may be entirely in memory. Nevertheless that was the
conclusion I came to. It's not the IP address being cached, it's the
response from the site I would say. Your new request is never being sent
(via your new IP) because Polipo is returning the cached version of the
page IMO.
Anyone have other ideas?
GD 

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