Overview
This guide contains instructions on how to install and do basic configuration of a PostgreSQL database.
Prerequisites
- Operating System : Ubuntu 18.04
- Access to a Terminal or Shell Console
Install
01: Open a terminal window
02: Update the package repository list
$ sudo apt update
03: Install PostgreSQL via APT package manager. Enter y when asked to confirm.
$ sudo apt install postgresql postgresql-contrib
04: Change to the postgres user account.
$ sudo -i -u postgres
05: Access the psql shell
$ psql
06: Verify that installed correctly by showing the built-in PostgreSQL system tables.
postgres=# SELECT * FROM pg_catalog.pg_tables;
Press q to exit from the listing of sql tables.
07: Exit from the psql session
# Exit from psql postgres=# \q # Exit from postgres user [email protected]: ~$ exit
Accept database connection from anywhere
WARNING: Use only in development environment, this poses a security concern when applied in a production environment.
01: Edit the postgre config located at
/etc/postgresql/<sql-version>/main/postgresql.conf
At the time of this writing the stable version of PostgreSQL is 10.
# FORMAT
$ sudo nano /etc/postgresql/<b>{sql-version}</b>/main/postgresql.conf
# SAMPLE
$ sudo nano /etc/postgresql/<b>10</b>/main/postgresql.conf
localhost is the default value, which means it can only be accessed locally from the server. And not remotely.
02: Set to asterisk, *, to make it accessible anywhere, then save the changes.
03: Restart the PostgreSQL service to apply the changes in config.
$ sudo service postgresql restart
