Prashant Baldha

Frontend HTTP Authentication Protection provides simple HTTP authentication layer to your fronend site. There is often need to prevent normal visitors and search engine from navigating front website, when website is in development environment before release website in production environment. This plugin serves this need very well by adding HTTP authentication layer to frontend site. This WordPress Plugin uses HTTP Basic Authentication. This plugin is fully configurable from admin panel.
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Features: 
1.Enable Disable Frontend HTTP Authentication 
2.Set Custom Username and Password 
3.Set Login Message which will display in login dialog prompt 
4.Set error content by WYSWYG editor

Frontend HTTP Auth Protection

Frontend HTTP Authentication Protection makes private front part of your website. When web developer like to give demo of website to end client before …

Denis V (Artprima)

Each time you login to your blog WordPress creates a session cookie which is used to authenticate you. 
By default if someone somehow gets your cookies he (or she) is able to use them to compromise your blog 
(even without having to know your password!). To prevent this you may want to make your auth cookies 
ip-dependent so that they could be valid only for that ip which you used during login.
Use this plugin only if you have a static IP or dynamic which doesn’t change too often. Otherwise, you’ll 
have to enter your login and password each time your IP changes.

IP Dependent Cookies

Plugin IP Dependent Cookies makes your Wordpress installation more secure adding your IP to salt (which makes cookies IP-dependent).

Frontend HTTP Auth Protection vs IP Dependent Cookies