Discover the Steps to Install PostgreSQL on Ubuntu 18.04

PostgreSQL is a feature-filled and free, relational database management system. It is a tool used for managing enormous population data with it comes many numbers. 

This knowledge base section will provide a step-by-step approach to installing PostgreSQL on Ubuntu 18.04. 

So, let us get started!

Step 1: Update the System

And also we need to know that your Ubuntu is easily updated and the latest. Open a terminal window and run the following commands:

It will update your system's package list. Moreover, upgrade any outdated packages to the latest versions.

Step 2: Install PostgreSQL

To install PostgreSQL on Ubuntu 18.04–use the following command:

This command will install both the PostgreSQL database server and additional utilities.

Step 3: Verify the Installation

You can verify it by checking the PostgreSQL service status. Use the following command:

If PostgreSQL has been installed correctly, you will see output indicating that the service is active and running.

Step 4: Access PostgreSQL

By default, PostgreSQL creates a system user named "postgres" with administrative privileges. To access the PostgreSQL prompt, switch to this user by running:

Now, you can access the PostgreSQL prompt by typing:

You are now connected to the PostgreSQL server. Now, you can begin executing SQL commands.

Step 5: Set Up a Password for the PostgreSQL User

To improve security, set a password for the default PostgreSQL user "postgres". While remaining signed in as the "Postgres" user, execute the following command:

Enter your desired password and confirm it when prompted. Make sure to choose a strong password to protect your database.

Step 6: Create a New PostgreSQL User

Establish a new user with limited access. Use the following command:

Replace "username" with the desired username and "password" 

Step 7: Create a New Database

Now, you can create a new database and assign ownership to the newly created user. Run the following command:

Replace "dbname" with the desired name.

Step 8: Enable Remote Access (Optional)

You need to modify the PostgreSQL configuration file to allow remote connections. Open the PostgreSQL configuration file using a text editor:

Find the line that reads:

Below this line, add the following line to allow access from any IP address:

Save the file and exit the text editor. Then, restart the PostgreSQL service to apply the changes:

That’s It!

Follow our above step-by-step guide to install PostgreSQL on your Ubuntu 18.04 server. Now, you can also configure it for basic use. For more information contact our support team.