<mohammadrony>

Server Setup

Update following values:

  • Username: user_name
  • Password: strong_password
  • Database: database_name
  • Schema: schema_name

Database setup

sudo sh -c 'echo "deb [arch=amd64] http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
sudo wget -O /etc/apt/trusted.gpg.d/postgresql.asc https://www.postgresql.org/media/keys/ACCC4CF8.asc
sudo apt update; sudo apt -y upgrade
sudo apt install -y postgresql-17

sudo apt-mark hold postgresql-17 postgresql-client-17 postgresql-client-common postgresql-common

Update configuration

Allow external application connection

sudo cp /etc/postgresql/17/main/postgresql.conf /etc/postgresql/17/main/postgresql.conf.orig
sudo vi /etc/postgresql/17/main/postgresql.conf

data_directory = '/var/lib/postgresql/17/main'
listen_addresses = '*'
max_connections = 100
port = 5432

Or

sudo sed -i "s/#listen_addresses.*/listen_addresses = '*'/" /etc/postgresql/17/main/postgresql.conf

Allow other external clients

sudo cp /etc/postgresql/17/main/pg_hba.conf /etc/postgresql/17/main/pg_hba.conf.orig
sudo vi /etc/postgresql/17/main/pg_hba.conf

host    all             all             0.0.0.0/0               md5

Or

sudo tee -a /etc/postgresql/17/main/pg_hba.conf << EOF
host    all             all             0.0.0.0/0               md5
EOF

Update firewall

sudo ufw allow 5432/tcp
# sudo systemctl disable --now ufw

Restart service

sudo systemctl restart postgresql
sudo systemctl status postgresql

sudo pg_lsclusters

sudo -i -u postgres psql

CREATE USER user_name WITH PASSWORD 'strong_password';
ALTER USER user_name WITH SUPERUSER CREATEROLE CREATEDB;

CREATE DATABASE database_name
  WITH
  OWNER = user_name
  ENCODING = 'UTF8'
  LOCALE_PROVIDER = 'libc'
  CONNECTION LIMIT = -1
  IS_TEMPLATE = False;

ALTER DATABASE database_name OWNER TO user_name;
GRANT ALL PRIVILEGES ON DATABASE database_name TO user_name;
GRANT ALL PRIVILEGES ON SCHEMA schema_name TO user_name;
\q

Remove postgresql packages

sudo apt purge -y postgresql-17 postgresql-client-17