This section entails the installation and configuration of a local PostgreSQL database. If you already have a PostgreSQL database service in place, skip to the next section.
!!! warning
NetBox requires PostgreSQL 9.6 or higher. Please note that MySQL and other relational databases are **not** currently supported.
Install the PostgreSQL server and client development libraries using apt.
sudo apt update
sudo apt install -y postgresql libpq-dev
PostgreSQL 9.6 and later are available natively on CentOS 8.2. If using an earlier CentOS release, you may need to install it from an RPM.
sudo yum install -y postgresql-server libpq-devel
sudo postgresql-setup --initdb
CentOS configures ident host-based authentication for PostgreSQL by default. Because NetBox will need to authenticate using a username and password, modify /var/lib/pgsql/data/pg_hba.conf to support MD5 authentication by changing ident to md5 for the lines below:
host all all 127.0.0.1/32 md5
host all all ::1/128 md5
Then, start the service and enable it to run at boot:
sudo systemctl start postgresql
sudo systemctl enable postgresql
At a minimum, we need to create a database for NetBox and assign it a username and password for authentication. This is done with the following commands.
!!! danger
**Do not use the password from the example.** Choose a strong, random password to ensure secure database authentication for your NetBox installation.
$ sudo -u postgres psql
psql (12.5 (Ubuntu 12.5-0ubuntu0.20.04.1))
Type "help" for help.
postgres=# CREATE DATABASE netbox;
CREATE DATABASE
postgres=# CREATE USER netbox WITH PASSWORD 'J5brHrAXFLQSif0K';
CREATE ROLE
postgres=# GRANT ALL PRIVILEGES ON DATABASE netbox TO netbox;
GRANT
postgres=# \q
You can verify that authentication works issuing the following command and providing the configured password. (Replace localhost with your database server if using a remote database.)
$ psql --username netbox --password --host localhost netbox
Password for user netbox:
psql (12.5 (Ubuntu 12.5-0ubuntu0.20.04.1))
SSL connection (protocol: TLSv1.3, cipher: TLS_AES_256_GCM_SHA384, bits: 256, compression: off)
Type "help" for help.
netbox=> \conninfo
You are connected to database "netbox" as user "netbox" on host "localhost" (address "127.0.0.1") at port "5432".
SSL connection (protocol: TLSv1.3, cipher: TLS_AES_256_GCM_SHA384, bits: 256, compression: off)
netbox=> \q
If successful, you will enter a netbox prompt. Type \conninfo to confirm your connection, or type \q to exit.