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One way is to switch over to the postgres account on your server by running the following command: There are a few ways to utilize this account to access Postgres.
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The installation procedure created a user account called postgres that is associated with the default Postgres role. If a role exists within Postgres, a Unix/Linux username with the same name is able to sign in as that role. Upon installation, Postgres is set up to use ident authentication, meaning that it associates Postgres roles with a matching Unix/Linux system account. These are, in some ways, similar to regular Unix-style users and groups. Step 2 - Using PostgreSQL Roles and Databasesīy default, Postgres uses a concept called “roles” to handle authentication and authorization. sudo apt install postgresql postgresql-contrib.Then, install the Postgres package along with a -contrib package that adds some additional utilities and functionality: To install PostgreSQL, first refresh your server’s local package index: After completing this prerequisite tutorial, your server should have a non- root user with sudo permissions and a basic firewall. To follow along with this tutorial, you will need one Ubuntu 20.04 server that has been configured by following our Initial Server Setup for Ubuntu 20.04 guide.
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If you’d prefer a more in-depth tutorial on installing and managing a PostgreSQL database, see How To Install and Use PostgreSQL on Ubuntu 20.04. This guide demonstrates how to quickly get Postgres up and running on an Ubuntu 20.04 server, from installing PostgreSQL to setting up a new user and database. It’s standards-compliant and has many advanced features like reliable transactions and concurrency without read locks. PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language.