The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.
One of a set of tools we're offering as a way of saying thank you for being a part of the community.
It is not advisable to use the site in /etc/ as there other restriction.
Ls -lZ
You should use /var/www/domainname
/etc/httpd/conf.d/domainna
This will also handle updating the site.