Alas, the problem is happening again. Something, somewhere, somehow, is changing his index.html file to index.php. He is not running any CMS and this is on a sever he built and owns.
He wrote: For reason I do not understand, the index.html file you wrote for me keeps changing to index.php and when it does I get a short line of gibberish on a plain white screen. Any ideas what's happening?
Then: My server is nginx, and as far as I know there's no content management system in use.
Advice?3/3