How To Install and Secure phpMyAdmin on Ubuntu 14.04

Install phpMyAdmin :

To get started, we can simply install phpMyAdmin from the default Ubuntu repositories.

$ sudo apt-get update
$ sudo apt-get install phpmyadmin

The only thing we need to do is explicitly enable the php5-mcrypt extension, which we can do by typing:

$ sudo php5enmod mcrypt

Afterwards, you'll need to restart Apache for your changes to be recognized:

$ sudo service apache2 restart

You can now access the web interface by visiting your server's domain name or public IP address followed by /phpmyadmin:

http://localhost/phpmyadmin

When you log in, you'll see the user interface, which will look something like this:

$ sudo service apache2 restart

Issues : 

## Server is not found Issue ##

sudo service apache2 restart
 * Restarting web server apache2                                                                                                                AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1. Set the 'ServerName' directive globally to suppress this message

and when I was typed the,localhost/phpmyadmin it showing the message

-NOT FOUND The requested URL /phpmyadmin was not found on this server. Apache/2.4.7 (Ubuntu) Server at localhost Port 80

I believe this is because You haven't configured your phpmyadmin with the apache server well. If you installed the apache server and phpmyadmin using sudo apt-get install (Because you can install them using source code etc.) below procedure may work for you.

$ sudo ln -s /etc/phpmyadmin/apache.conf /etc/apache2/conf-available/phpmyadmin.conf

$ sudo ln -s /usr/share/phpmyadmin /var/www/html/phpmyadmin

$ sudo service apache2 restart

now type localhost/phpmyadmin in web browser address bar

## phpMyAdmin Error: The mbstring extension is missing. Please check your PHP configuration ##

$ sudo apt-get install php-mbstring

$ sudo ln -s /usr/share/phpmyadmin/ /var/www/html/phpmyadmin

$ sudo service apache2 restart