[Resolved] PHP help needed

[Joeydabomb]

PHP help needed

Is it possible to find a users ip if they use a proxy?

Say the sign up on a site using proxies to avoid ip bans... would you be able to find there real ip and ban them?

 

[Peter]

if the person is using a proxy then it is possible to check their ip using $_SERVER['HTTP_X_FORWARDED_FOR']. This only contains an ip if a proxy is used.

However anonymous proxies for example do not use the necessary header so $_SERVER['HTTP_X_FORWARDED_FOR'] would not contain anything and unfortunately there is no other way of checking using php.

 

[BillyConnite]

if the person is using a proxy then it is possible to check their ip using $_SERVER['HTTP_X_FORWARDED_FOR']. This only contains an ip if a proxy is used.

However anonymous proxies for example do not use the necessary header so $_SERVER['HTTP_X_FORWARDED_FOR'] would not contain anything and unfortunately there is no other way of checking using php.

What Peter said .

However It is possible to ban the proxy itself. If you notice a large amount of traffic running to or from one IP, this could be a proxy being used by multiple people to view your site.