PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. It is a popular choice for many small and large projects and has the advantage of being standards-compliant and having many advanced features like reliable transactions and concurrency without read locks.
Step 1. First make sure that all your system packages are up-to-date by running these following apt-get commands in the terminal.
sudo apt-get update
sudo apt-get upgrade
Step 2. Installing PostgreSQL server.
PostgreSQL is available in the default repositories. So enter the following command from the Terminal to install it:
apt-get install postgresql postgresql-contrib phppgadmin
Step 3. Access PostgreSQL command prompt.
After installing PostgreSQL database server, by default it creates a user ‘postgres’ with role ‘postgres’. It also creates a system account with same name ‘postgres’. So to connect to postgres server, login to your system as user postgres and connect database:
su - postgres
Now you are logged in to PostgreSQL database server. To check login info use following command from database command prompt:
To disconnect from PostgreSQL database command prompt just type below command and press enter. It will return you back to Ubuntu command prompt:
Create new user and database:
### For example, let us create a new user called “idroot” with password “idrootnet”, and database called “idrootdb”. ###
sudo -u postgres createuser -D -A -P idroot
sudo -u postgres createdb -O idroot idrootdb
Step 4. Configure Apache2 for phpPgAdmin.
phpPgAdmin is a web-based administration tool for PostgreSQL. It is perfect for PostgreSQL DBAs, newbies, and hosting services. You need to configure apache for phpPgAdmin. Edit the file /etc/apache2/conf-available/phppgadmin.conf:
Comment out the line #Require local by adding a # in front of the line and add below the line allow from all so that you can access from your browser:
Step 5. Configure phpPgAdmin.
Next, edit the file /etc/phppgadmin/config.inc.php:
Now change the following option:
$conf[‘extra_login_security'] = true;
$conf[‘extra_login_security'] = false;
Now, we can restart Apache and phpPgAdmin so that the changes take place:
systemctl restart postgresql
systemctl restart apache2
systemctl enable postgresql
systemctl enable apache2
Step 6. Accessing phpPgAdmin.
phpPgAdmin will be available on HTTP port 80 by default. Open your favorite browser and navigate to
http://server-ip/phppgadmin. If you are using a firewall, please open port 80 to enable access to the control panel.
Congratulation’s! You have successfully installed PostgreSQL Server.