\u00a0<\/p>\n<\/p>\n
PostgreSQL is a powerful, open-source relational database system that is widely used for various applications. In this guide, we will walk you through the installation and basic usage of PostgreSQL 13 on Rocky Linux.<\/p>\n
Before starting the installation, ensure your system is up to date:<\/p>\n
sudo dnf update -y<\/code><\/pre>\nStep 2: Install PostgreSQL 13<\/h2>\n
To install PostgreSQL 13, execute the following command:<\/p>\n
sudo dnf install -y postgresql13 postgresql13-server<\/code><\/pre>\nStep 3: Initialize the Database<\/h2>\n
After installation, you need to initialize the PostgreSQL database:<\/p>\n
sudo \/usr\/pgsql-13\/bin\/postgresql13-setup initdb<\/code><\/pre>\nStep 4: Start and Enable PostgreSQL Service<\/h2>\n
Start the PostgreSQL service and enable it to start on boot:<\/p>\n
sudo systemctl start postgresql-13\r\nsudo systemctl enable postgresql-13<\/code><\/pre>\nStep 5: Configure PostgreSQL to Allow Remote Access (Optional)<\/h2>\n
If you need to access PostgreSQL remotely, edit the configuration file:<\/p>\n
sudo nano \/var\/lib\/pgsql\/13\/data\/postgresql.conf<\/code><\/pre>\nUncomment and change the following line:<\/p>\n
listen_addresses = '*'<\/code><\/pre>\nNext, edit the pg_hba.conf<\/code> file to allow connections:<\/p>\nsudo nano \/var\/lib\/pgsql\/13\/data\/pg_hba.conf<\/code><\/pre>\nAdd the following line at the end of the file to allow access from any IP:<\/p>\n
host all all 0.0.0.0\/0 md5<\/code><\/pre>\nStep 6: Restart PostgreSQL<\/h2>\n
Restart PostgreSQL to apply the changes:<\/p>\n
sudo systemctl restart postgresql-13<\/code><\/pre>\nStep 7: Access PostgreSQL<\/h2>\n
To access PostgreSQL, switch to the postgres<\/code> user:<\/p>\nsudo -i -u postgres<\/code><\/pre>\nThen, access the PostgreSQL shell:<\/p>\n
psql<\/code><\/pre>\nYou can now start creating databases and managing your data!<\/p>\n
Conclusion<\/h2>\n
You have successfully installed and set up PostgreSQL 13 on Rocky Linux. This robust database system will help you manage your data efficiently.<\/p>\n
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