I installed firebird-1.5.1.4481 on Linux and use fb_inet_server (Classic).
Each time i call gsec to add a new user I get the the following message in
firebird.log:
sysrai-linux Fri Oct 22 12:59:51 2004
SERVER/process_packet: connection rejected for firebird
sysrai-linux Fri Oct 22 12:59:51 2004
SERVER/process_packet: connect reject, server exiting

I can add a user, but cannot create a database after that.
I asume that security.fdb is modified by the server and if the server exits
it seems not logical that I can display the user using gsec.
The documentation of gsec is very limited to see what it does.

Rgds
Dieter