Need to Clear Cache Every 2-3 Days

Hi Frank,

Thank you for your using my plugin so long time!

I googled about Cloudways and found “$_SERVER[‘REMOTE_ADDR’] returns 127.0.0.1” at Stack Overflow. Someone said:

I had this problem when using nginx as a load balancer.

And also I found another comment in this page:

This common problem I had noticed on Cloudways web hosting.

So I think we should find a way to identify the client IP address on Cloudways server. The both code snippets in the above pages might be wrong from the security point of view. I don’t implement those kind of code by default because attacker can easily declare false information to avoid blocking by country.

And unfortunately, I can not find any help in Cloudways support about how to get client IP address. So I assume $_SERVER['HTTP_X_FORWARDED_FOR'] is our right choice.

function my_replace_ip( $ip ) {
    if ( '127.0.0.1' === $_SERVER['REMOTE_ADDR'] && ! empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {
        $tmp = explode( ',', $_SERVER['HTTP_X_FORWARDED_FOR'] );
        $tmp = trim( $tmp[0] );
        if ( filter_var( $tmp, FILTER_VALIDATE_IP ) ) {
            $ip = $tmp;
        }
    }

    return $ip;
}
add_filter( 'ip-geo-block-ip-addr', 'my_replace_ip' );

You can put the above code into functions.php in your theme, or drop-in.php in geolocation database directory when you select ““mu-plugins” (ip-geo-block-mu.php) as validation timing.

Also please refer to ip-geo-block-ip-addr.

If the above code could not resolve your issue, please let me know in this thread. I should provide you another snippet.

Good luck!

Thanks much, and sorry for that other/double post. I’ll give this a try this weekend (which I have a clearer mind, no work, etc. and will let you know how it goes.

Frank