The SYSDBA User - Firebird

All new installations of Firebird on Windows install the SYSDBA user into the security database, with the password masterkey. Obviously, this is widely known and is not intended to be secure. It should be changed at the first opportunity.

On Linux, some installers may generate a random password for SYSDBA. If so, you will find it in the text file SYSDBA.password, located in the Firebird /bin directory.

SYSDBA is the owner of the security database. Keep in mind that Firebird databases have “one SYSDBA to rule them all.” The SYSDBA user has full destructive rights over all databases on the server. The SYSDBA password should not be distributed to ordinary users.

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