Marcus Downing

Dani Llewellyn

Whenever a site is under development, or its content should remain private, you want to prevent to general public 
from reading it – whether deliberately or by accident.
A comman way to do this is with <a href="http://httpd.apache.org/docs/2.4/howto/auth.html" rel="nofollow ugc">HTTP authorisation</a>, 
but this has some problems:
<ul>
<li>Each user of your site has two different sets of username and password, one for the authorisation and one for 
WordPress login. It’s not uncommon for some users to find this confusing.</li>
<li>To set up authorisation you need access to your web server’s configuration (at least using the <code>.htaccess</code> file), 
which may not be available depending on your hosting supplier. 
You also need to learn how to configure the authorisation correctly, and risk breaking the site if you get it wrong.</li>
<li>When the time comes to remove the authorisation, you need to edit the configuration again.</li>
<li>In certain circumstances, combining authorisation with WordPress login can get a visitor into a circular redirect 
loop, where the result of logging in is to redirect to the login page.</li>
</ul>
Site PIN solves these problems by replacing authorisation with a simple PIN. This has the following advantages:
<ul>
<li>Everybody knows what a PIN is, and it’s clearly not the same as a password.</li>
<li>Logging into WordPress bypasses the PIN, so you can’t lock yourself out</li>
<li>It’s just a WordPress plugin, so no server configuration is necessary.</li>
<li>You can change or remove the PIN from WordPress admin.</li>
</ul>

Site PIN

Prevent careless visitors by locking your site down with a PIN

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).

Site PIN vs IP Dependent Cookies