> It seems that to resolve localhost or even 127.0.0.1 driver needs
> a DNS server. But when computer is disconnected "ping localhost"
> works good.
> I tried 1.0.1 and 1.5 drivers - nothing happens.

You get this message also when it cannot connect to the port specified in
the JDBC URL (default is 3050). Ensure that your Firebird server is running.

Roman