Logging in to phppgadmin remotely Ubuntu 14.04 Amazon EC2
So I received help on this issue from a colleague who is an experienced programmer.

In order to add a password to the page:

sudo nano /etc/apache2/conf-enabled/phppgadmin.conf


Then, modify the .conf file to include the following text within the  block (I placed it underneath the 'allow from all' line that I uncommented previously):

AuthUserFile /usr/share/phppgadmin/.htpasswd
AuthName "Restricted Area"
AuthType Basic
require valid-user


Save this file and exit.

Change directory to phppgadmin: 

cd /usr/share/phppgadmin


Create password file (change 'your username' and get rid of triangle brackets):

sudo htpasswd -c .htpasswd &lt;your username&gt;


Enter password twice when prompted.

Restart the apache service and the page will now be password protected.

In order to add a superuser to access phppgadmin(again, (change 'your username' and get rid of triangle brackets):

sudo su - postgres
createuser -P -s &lt;your username&gt;


Again, enter password twice when prompted. This will now allow you to login to to phppgadmin.

Erwin's answer is also helpful too, it just seems as if he takes a different approach to solving the issue.  Although I did not use Erwin's method, it should accomplish the same thing.  However, I did not need to adjust listen_address in postgresql.conf in order to make it work.