Deny access based upon IP address, or an IP block, by placing the following code into your .htaccess file.
#Block access to IP address 192.168.169.170 and to IPs beginning with 192.168.169.
order allow,deny
deny from 192.168.169.170
deny from 192.168.169.
allow from all
#Block access to All visitors except yourself (What is My IP Address)
order allow,deny
allow from 192.168.169.170
deny from all
---
Using mod_rewrite is an alternative method for blocking IP addresses with .htaccess:
#Block access to IP address 192.168.169.170
RewriteEngine on
RewriteCond %{Remote_Addr} ^192\.168\.169\.170$
RewriteRule ^(.*) http://localhost/ [R,L]
#Block access to IP addresses from 192.168.0.0 to 192.168.255.255
RewriteEngine on
RewriteCond %{Remote_Addr} ^192\.168
RewriteRule ^(.*) http://localhost/ [R,L]
