By definition, if a proxy is anonymous, it sends no information that could be used to identify it as a proxy other than its unique IP address. As such, anonymous proxies must be blocked by IP address.

However, this looks like a software 'internet privacy' proxy, and so may be blockable by the modified Referer header value and IP address.

You could, for example, rewrite such requests to a PERL script that adds code to your .htaccess file to block misbehaving clients by their IP address. A good example of just such a script is posted in this thread [webmasterworld.com] in our Perl Server Side CGI Scripting forum.

Jim

Hi Jim

Thanks for your reply, I didnt quite follow the Perl script but did come across the following which you had once replied to. Would this address my issue.

RewriteCond %{HTTP_REFERER} (Field\sblocked¦proxyway¦Outpost¦Agnitum¦anonym¦steganos¦Norton) [NC]
RewriteRule!\.403\.php$ - [F]

regards max666

Assuming you modified that code to better fit your requirements, it would still only block the requests that had the proxy software name in the referer. Looking at your log examples above, it would block the second, but not the first request.

Using the script, once a single request was detected with the proxy software name in the referer, an entry would be added to your .htaccess file to block that requester by IP address forever -- unless you manually removed that IP address blocking later.

Jim

OK thanks for your help, I'll see how it goes, hopefully it will be enough that they give up and find something better to do.

Regards Max666