Cerb's Anti-Proxy Hack - 15 seconds install

This is my Anti-Proxy hack, works with any vBulletin version.

Just download the attachment.


What this hack does

This hack prevents anyone from accessing your site through a proxy.

This is pretty useful if you have a large/semi-large community like mine (www.bnfreak.com) with a lots of young / immature members.

If someone gets banned he will most likely try to come back through a proxy, this is what this hack prevents.



You can also customize it (like I did on my forums) to simply prevent new registrations from proxies rather than the whole site. To do this, just edit register.php instead of global.php



Don't forget to click Install

[pjdaley]

thank you sir

[Remi]

Nice work

Is there a way to exclude some proxies please

Thanks

[Cakes]

Stupid question, but won't this block all AOL users and anyone else who's ISP automatically goes through a proxy (like Freeserve for me)?

[Cerb]

This blocks all proxies that gives out HTTP_X_FORWARDED_FOR, HTTP_FORWARDED or the most common, HTTP_VIA.

High anonymity (sp?) proxies don't return any of those variables, so if you're on one of those you're fine.

Couldn't really say if AOL has one of those variables since this connection is very uncommon where I'm from.


And @ excluding proxies, yes there's a way, you can add safe proxies in an array and check if the remote address = this proxy.

PHP Code:


// Add the safe proxies in this array
$safe_proxies = array('127.0.0.1','127.0.0.2','24.223.123.123'); // Safe Proxies

if (( isset($_SERVER['HTTP_FORWARDED']) || isset($_SERVER['HTTP_X_FORWARDED_FOR']) || isset($_SERVER['HTTP_VIA'])) && !in_array($_SERVER['REMOTE_ADDR'],$safe_proxies) )
{    die("No Proxies");    } 


[Wential]

Excellent Hack!

[Jolten]

Thanks for sharing Cerb. Installed and happy.

[Wential]

1 question. Is there an easy way to test this?

[Floris]

Originally Posted by Wential

1 question. Is there an easy way to test this?

Use your ISP proxy, and surf to your own site.

[BladeZ]

Great Hack,thanks!!

[Bison]

Very nice ...

Click install!