I have firebird 2.1 installed on Ubuntu 10.04 and it works great for a
while. I am able to connect to the database from a Delphi application
using the gsec security system all the time. I am also able to connect
to the database using qli, isql and gbak for a while. Then for no reason
I can find, I looked in the firebird2.1.log file but there was nothing,
it starts giving me Permission Denied errors. (I am still able to
connect from the Delphi application.) After rebooting the server
everything works again.