postgresqlHow can I set up and configure a PostgreSQL server?

1. Install PostgreSQL using a package manager:

sudo apt-get install postgresql

2. Create a database user:

sudo -u postgres createuser -s <username>

3. Create a new database:

sudo -u postgres createdb <dbname>

4. Configure authentication for the user:

sudo -u postgres psql
\password <username>

5. Allow remote connections (optional): Edit the file /etc/postgresql/<version>/main/pg_hba.conf and add the line:

host <dbname> <username> <IP address> md5

6. Edit the PostgreSQL configuration file postgresql.conf to allow remote connections: Change the line listen_addresses = 'localhost' to listen_addresses = '*'

7. Restart the PostgreSQL service:

sudo service postgresql restart

Helpful links

• PostgreSQL Documentation
• How To Install and Use PostgreSQL on Ubuntu 18.04

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