Create a simple file in /var/www/html with just some text in <h1> tags or so, see if you can get that to display correctly. As long as you don't, your problem is with apache and you're on the wrong forum 
After that, put a phpinfo() in that file and see if you can get that to display correctly. Once you get to that point, we can help you again.
good luck!

After that, put a phpinfo() in that file and see if you can get that to display correctly. Once you get to that point, we can help you again.
good luck!
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