>>--- In firebird-support@yahoogroups.com,
>>Matteo Cazzador <matteo@...> wrote:

>>>Hello, is it possible to make a fdb file that could
>>>non read from SYSDBA.....on other server firebird?

No. AFAIK, SYSDBA can restore any database, or
connect to any database file, if this one is
transported on a second machine on which you
have SYSDBA privileges.

>>> If i create a fdb file is it possible that it not
>>> readable from copy it on other firebird server?

No. Firebird server does not support "database file
encryption", and does not allow a native secure
secure socket connection (you could use a third
part tool to make a secure connection tunnel).
At this time, user authentication is on per-server
bases, so it is not related on a single database
file.

To enforce "enclosure" of user's data you have to
implement by hands a "security layer". If this is
your case, you can encrypt what you need on client
side and store the result on the database.
Example: if you need to keep confidential text into
the database, you can encript on client side (using
a client-side tool) and save it on a (binary) blob
field.

>>>excuse my english.....

It's a common problem ;-)
Ciao.