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Hello Every One I Need Help about How i connect mysql Remotely i want use my database from my server ip to other hosting account How I done using php Thanks in Advance

I did a few searches and I found that though $_SERVER['REMOTE_ADDR'] gets you the IP of a visistor, it is not always accurate because they could be hiding behind a proxy. I read that it was good to check $_SERVER['REMOTE_ADDR'] and $_SERVER['HTTP_X_FORWARDED_FOR'] to see if they contained value and if they did, it meant that they were behind a proxy, so it was better to use $_SERVER['REMOTE_ADDR'] and $_SERVER['HTTP_X_FORWARDED_FOR'] instead of $_SERVER['REMOTE_ADDR']. Now my question is whether $_SERVER['REMOTE_ADDR'] and $_SERVER['HTTP_X_FORWARDED_FOR'] where the same or not. If not, what is the difference between them? I also read that $_SERVER['REMOTE_ADDR'] and $_SERVER['HTTP_X_FORWARDED_FOR'] were not always accurate because of the fact that the header could be spoofed. I tested this and it seems that the few proxies I used, the $_SERVER['REMOTE_ADDR'] and $_SERVER['HTTP_X_FORWARDED_FOR'] were not able to detect that it was behind a proxy. My question now is if there was a more accurate way to track an IP as opposed to this? I also want to know if there was any way to track the original IP of someone using a VPN or VPS?