How to Install PostgreSQL in Kali Linux

PostgreSQL is a powerful and popular open-source relational database management system that can be used for a variety of applications. If you’re using Kali Linux and need to install PostgreSQL, this guide will walk you through the installation process.

Step 1: Update Your System

Before installing PostgreSQL, it’s important to update your system to the latest version. To do this, open the terminal and run the following commands:

sudo apt-get update
sudo apt-get upgrade

This will update your system to the latest version.

Step 2: Install PostgreSQL

To install PostgreSQL, open the terminal and run the following command:

sudo apt-get install postgresql postgresql-contrib

This command will download and install PostgreSQL and its contributing modules.

Step 3: Verify Installation

Once the installation is complete, you can verify it by checking the version of PostgreSQL installed on your system. To do this, open the terminal and run the following command:

psql --version

This command will display the version of PostgreSQL installed on your system.

Step 4: Configure PostgreSQL

By default, PostgreSQL is configured to only accept connections from the local host. If you want to allow remote connections to your PostgreSQL server, you’ll need to modify the pg_hba.conf and postgresql.conf files.

The pg_hba.conf file is used to control access to the PostgreSQL server based on the client’s IP address and authentication method. To edit this file, run the following command:

sudo nano /etc/postgresql/<version>/main/pg_hba.conf

Replace <version> with the version of PostgreSQL installed on your system (e.g. 13). In this file, you can specify the authentication method for each connection type and IP address range.

The postgresql.conf file is used to configure the PostgreSQL server. To edit this file, run the following command:

sudo nano /etc/postgresql/<version>/main/postgresql.conf

In this file, you can modify settings such as the port number, memory usage, and log file location.

Step 5: Start PostgreSQL

To start PostgreSQL, run the following command:

sudo systemctl start postgresql

You can also enable PostgreSQL to start automatically at boot time by running the following command:

sudo systemctl enable postgresql

Conclusion

In this guide, we’ve shown you how to install PostgreSQL in Kali Linux. PostgreSQL is a powerful and popular open-source relational database management system that can be used for a variety of applications. We hope that this guide has been helpful in getting PostgreSQL up and running on your Kali Linux machine.

Tags: configuration, installation, kali linux, management system, open-source, pg_hba.conf, PostgreSQL, postgresql.conf, relational database, verification