Distributor ID: Debian
Description: Debian GNU/Linux 11 (bullseye)
Release: 11
Codename: bullseye
Firebird version: 2.5.9
For Linux, Superserver download packages start with FirebirdSS, Classic/SuperClassic packages with FirebirdCS. The default run mode for Classic/SuperClassic installations is traditional, multiprocess Classic. To switch to SuperClassic, run the script changeMultiConnectMode.sh and answer “thread” at the prompt (for multithreaded). The script is located in the bin subdirectory of your Firebird installation.
sudo apt-get install libncurses5
Download and extract files
sudo su
cd
wget https://github.com/FirebirdSQL/firebird/releases/download/R2_5_9/FirebirdCS-2.5.9.27139-0.amd64.tar.gz
tar xvf FirebirdCS-2.5.9.27139-0.amd64.tar.gz
cd FirebirdCS-2.5.9.27139-0.amd64.tar.gz
./install.sh
When prompted insert your SYSDBA password (default is masterkey in reality only 8 chars are considered)
As explained in the Firebird installation notes, if you need to switch to SuperClassic, you need to:
cd /opt/firebird/bin
./chageMultiConnectMode.sh
Choose thread
Configure firebird.conf
Configure aliases.conf