Secure Admin URL
Block Unwanted Visitors with .htaccess
Example .htaccess
order deny,allow
deny from all
allow from 10.231.
allow from 10.139.
allow from 1.11.22.
allow from 1.11.1.110.231. - This is subnet 10.231.0.0/255.255.0.0
1.11.22. - This is subnet 10.231.22.0/255.255.255.0
1.11.1.1 - unique IP Address
Block Unwanted Visitors with .htaccess using password
Example .htaccess
AuthUserFile /path/to/htpasswd/file/.htpasswd
AuthGroupFile /dev/null
AuthName "Name of Area"
AuthType Basic
require valid-user/path/to/htpasswd/file/ has to be a valid path to your .htpasswd file. Use a password encryption program to create your passwords. Paste the lines into your .htpasswd file and save the file. You will have one line for every username that requires access.
Change "Name of Area" to the name of the site section being protected.