Simple plugin to secure your WordPress admin interface thanks to IP whitelisting. Only IP adressess on the whitelist has an access into admin interface. Your IP address will be added automatically at plugin activation. Another possibility how to access WordPress administration is thanks to secret link.
Upload the plugin files to the “/wp-content/plugins/secure-admin-ip” directory, or install the plugin through the WordPress plugins screen directly.
Activate the plugin through the “Plugins” screen in WordPress.
Use the Settings => Secure Admin IP to configure the plugin.