hosting codeigniter project to linux server

I want to host my CodeIgniter project to Linux server using apache2

I already install apache2 using 

Code:

sudo apt install apache2

I already to copy my project in 

Code:

/var/www/

 and i already set in 

Code:

/etc/apache2/sites-available/000-default.conf

 but when I'm open in the browser, the page show 

Code:

index.html

 apache2 it works!

I tried using new conf in 

Code:

/etc/apache2/sites-available/

 but it can't work for me

how I can change that default page to my CodeIgniter project?

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