distiller --update is not working

Hello, I need to update my Server httpd.conf file. so i did follwoings I run this command to find the httpd.conf file location httpd -V Now i have location as HTTPD_ROOT="/etc/apache2" so i got this directory as bellow command cd /etc/apache2/conf and i edit the file nano httpd.conf I change value of DocumentRoot /var/www/html to my domain directory under as bellow ServerName *.*.*.* DocumentRoot /home/myapp/public_html ServerAdmin email@gmail.com suPHP_UserGroup nobody nobody