RewriteEngine On
# Redirect index.html to root
rewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.html\ HTTP/
rewriteRule ^index\.html$ http://%{HTTP_HOST}/ [R=301,L]
# Redirect non-www and IP addresses to www.
RewriteCond %{HTTP_HOST} !^www.nomesito.com$ [NC]
RewriteRule (.*) http://www.nomesito.com/$1 [R=301,L]