Update CentOS manual steps 
Update CentOS manual steps 

Update CentOS manual steps
samael33/ASTPP,iNextrix/ASTPP,samael33/ASTPP,samael33/ASTPP,iNextrix/ASTPP,samael33/ASTPP,iNextrix/ASTPP,iNextrix/ASTPP,iNextrix/ASTPP,samael33/ASTPP