I am new to Firebird, trying to understand how it handles user security.
 

 I want to create a database owned by and accessible to only one user - and 
that should not be SYSDBA.
 

 Let's call the database MyDB.
 

 In databases.conf I created an alias for MyDB and specified that it should be 
its own security database.
 

 With the Firebird server NOT running, I did the following in iSQL:
  - connected to the sample employee database (which uses the standard 
security3.fdb database) as SYSDBA
  - created a new user called MyNewUser and set a password
  - quit iSQL and restarted it as user MyNewUser
  - created MyDB.fdb in the folder already specified for it in databases.conf 
(so MyNewUser is the owner of MyDB)
  - connected to MyDB as user MyNewUser
  - created a test table and inserted a few test records.
  
 Next I started the Firebird server and using a Firebird client (IBExpert) I 
did this:
  - attempted to connect to MyDB as user MyNewUser - this was successful
  - attempted to connect to MyDB as SYSDBA - this was unsuccessful, which is 
what I was expecting.
  
 Next I edited the databases.conf alias for MyDB and removed the 
SecurityDatabase entry so it would now use the standard security3 database.
 

 Now when I attempt to connect as SYSDBA it is successful and I can see the 
test records that I previously entered.
 

 
 This is the point where I confess to being confused. I presume I am wrong but 
it looks like any Firebird database has a "public back door". What stops me 
taking a copy of SecretDatabase.fdb and connecting to it on my own Firebird 
installation?
 

 Steve Bailey
  • [firebird-support... sbai...@mutualconsultants.ltd.uk [firebird-support]
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