setup virtual host on apache (Ubuntu 14.04)

gistfile1.txt

## copy default.conf on /etc/apache2/sites-available/000-default.conf (or something like this) 
## or just make it new conf 
$ touch exaple.conf
## and open example.conf 
$ sudo nano example.conf
## Paste code this bellow

<VirtualHost *:80>
    ServerAdmin admin@example.com
    ServerName example.com
    ServerAlias www.example.com
    DocumentRoot /var/www/example.com/public_html
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

## save press (ctrl+x) if u dont know this hehe
## and active that conf
$ sudo a2ensite example.conf
$ sudo service apach2 restart 
## dont forget to check host for setting new ip or 
$ sudo nano /etc/hosts
## this for new setup domain or what you need for that