Checking hosts file entry with PHP?

Question

I'm creating a 'domain locking' script. Basically, the script will check my website to make sure that the host its running on is allowed to run it.

I don't want them to be able to modify their host file to reroute the connection.

Is there a way to check this and/or prevent it?

Answer 1

您还可以查询域的DNS服务器，并询问“授权” Web服务器的IP。