The CMS based websites on my web server, with several virtual servers, are all showing php script in the index.php file, see the screenshot. I am using apache 2.4.7 and the system information is as bellow.
System hostname servername (xx.xx.xx.xx)
Operating system Ubuntu Linux 14.04.3
Webmin version 1.760 Time on system Fri Jan 13 15:07:34 2017
Kernel and CPU Linux 3.19.0-25-generic on x86_64
Processor information Intel(R) Xeon(R) CPU X5650 @ 2.67GHz, 24 cores
System uptime 45 days, 3 hours, 31 minutes
Running processes 328
CPU load averages 0.00 (1 min) 0.03 (5 mins) 0.05 (15 mins)
CPU usage 0% user, 0% kernel, 0% IO, 100% idle
Real memory 2.46 GB used, 62.91 GB total
Virtual memory 0 bytes used, 63.99 GB total
Local disk space 86.42 GB used, 853.28 GB total
It's my first time posting a question on serverfault.com, and I am a beginner as a system administrator any mistakes made, please be kind.