Please first check if your site is loading perfectly at domain.com/neophytefile
Create an index.html file within the document_root on your test123.com site (not index.php)
Then add the following text to the index.html file and modify the title and frame-src
<html> <head> <title>https://test123.com</title> </head> <frameset rows="100%,*" border="0"> <frame src="http://domain.com/neophytefile/" frameborder="0" /> <frame frameborder="0" noresize /> </frameset> </html>
