To install Firebird on a Linux system, follow these steps based on the distribution you’re using:

Ubuntu/Debian:

1. Update the System:

$sudo apt update

2. Install Firebird:

For the Firebird SuperServer edition, use:

$sudo apt install firebird3.0-server

You can replace firebird3.0-server with the specific version you want if newer versions are available.

3.Enable and Start the Service:

Once installed, you need to enable and start Firebird:

$sudo systemctl enable firebird3.0

$sudo systemctl start firebird3.0

4.Check the Service Status:

Make sure Firebird is running:

$sudo systemctl status firebird3.0

Fedora/CentOS/RHEL:

1. Enable EPEL (Extra Packages for Enterprise Linux) Repository:

For CentOS/RHEL:

$sudo yum install epel-release

2. Install Firebird:

Install the Firebird package using dnf (Fedora) or yum (CentOS/RHEL):

$sudo dnf install firebird

# or for CentOS/RHEL

$sudo yum install firebird

3. Start and Enable the Service:

Enable and start Firebird after installation:

$sudo systemctl enable firebird-superserver

$sudo systemctl start firebird-superserver

4. Configure Firebird:

After installing, you may want to set up the SYSDBA password (default superuser). Use the following steps:

a. Change SYSDBA Password:

$sudo passwd firebird

b. Firewall Configuration (if needed): If you plan to connect remotely, ensure port 3050 is open:

$sudo ufw allow 3050/tcp  # For Ubuntu/Debian with UFW

$sudo firewall-cmd –add-port=3050/tcp –permanent  # For CentOS/RHEL/Fedora with firewalld

$sudo firewall-cmd –reload

Verifying Installation:

You can check if Firebird is correctly installed by connecting to it using the isql-fb tool, which comes with the Firebird package.

$sudo isql-fb

This will open an SQL prompt if the server is running correctly. You can create databases and run SQL commands from here.