I have a Ubuntu 16.04 server with a LAMP stack. When I first set it up I copied what is inside of my project folder into /var/www/html/ folder. And it worked fine! Except that it gave me "Internal Server Error" when I tried to generate PDF file.
Next, I wanted to delete all of my files and reload them. I deleted html folder and everything inside, then I cloned my project from github repository, and then I renamed that folder's name to "html" again.
Unfortunately, now I cannot even login. The HTML login page shows, but login script doesn't work; again "Internal Server Error".
I guessed and read that it could be about folder/file permissions. I changed permissions of everything inside /var/www/ but no good! I have read those below:
https://www.lifewire.com/500-internal-server-error-explained-2622938
https://code.tutsplus.com/tutorials/how-to-set-up-a-dedicated-web-server-for-free--net-2043
500 Internal Server Error for php file not for html
500 Internal Server Error for php file not for html
https://askubuntu.com/questions/450603/correct-permissions-for-sudo-lamp-var-www-directory
My final attempt was to apply the solution in the last link which is to run these commands on my server:
find /var/www -type d -exec chmod 755 {} \;
find /var/www -type f -exec chmod 644 {} \;
I really expected that this would work but it didn't help either. Please help, what should I do? What might be causing this problem?
(By the way, the server is on a private network, if it is somehow related)
