echo "letsencrypt=1" >> /usr/local/directadmin/conf/directadmin.conf  
echo "enable_ssl_sni=1" >> /usr/local/directadmin/conf/directadmin.conf
echo "check_subdomain_owner=1" >> /usr/local/directadmin/conf/directadmin.conf  
echo "hide_ip_user_numbers=1" >> /usr/local/directadmin/conf/directadmin.conf 
/etc/init.d/directadmin restart  
wget -O /usr/local/directadmin/scripts/letsencrypt.sh http://files.directadmin.com/services/all/letsencrypt.sh  
cd /usr/local/directadmin/custombuild  
./build update  
./build letsencrypt  
./build rewrite_confs