On Tue, 7 Jan 2003, Tzafrir Cohen wrote: > On Tue, 7 Jan 2003, Nadav Har'El wrote: > > > On Mon, Jan 06, 2003, Daniel Feiglin wrote about "Re: Home Page Failure": > > > We can make a game out of it, to find the shortest useragent string that > > will invoke this bug. For example, > > > > $ curl -i -s -A "Mozilla/" http://jobinfo.co.il/ > > > > also gives the same internal server error. > > A real nice game could be if a page is not accessible due to a silly > formatting error, and you can make it accessible thrugh your own modifying > proxy. This may not apply in this case, but other pages come to mind. > > You could make the page accessible only to browsers that can't view their > page properly (except adds). And then let them complain that you deny > customers from their page...
In the case of JobInfo, it seems that all such a proxy has to do is to change the UserAgent string of konq-based browsers. But still no point in proxying for mozilla users. If someone feels like having fun with such companies (and knows how to keep the server from being abused), here is how it can be implemented: * A proxy server allows only to specific users (identified by their user-agent string) access specific sites through it. Those sites are sites that apper on a public list of "non-accissble sites", like the one in mozilla.org.il. * The proxy provides an automatic proxy configuration script (a .pac file). This pac file will tell browsers to search in this proxy only for those sites, and therwise use DIRECT. * Thus the list canbe dynamically updated. And the server is less exposed to abuses, because it will not proxy to anywhere (but still: from anywhere) * A site gets into the list only if it is deliberitely inaccessible to users of certain browsers (artificial user-agent checks) or half-broken sites that can be fixed using a filtering proxy (that would indeed take much more work) * It must be clear that the users accessing the site thrugh the proxy could not have accessed it previously (or have had to go through much more trouble.. Thus the proxy is not intended t take hits from the original site (recall that a filterring proxy is in a position t block adds) * Thus if the original site becomes accessible, it must not be available through the proxy. Anybody wants to do such a thing? -- Tzafrir Cohen mailto:[EMAIL PROTECTED] http://www.technion.ac.il/~tzafrir ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
