--- In firebird-support@yahoogroups.com, "Martijn Tonies"
<m.tonies@...> wrote:

>
> Hi,
>
> > I've installed FB in 'SERVER1' PC and I can't connect
> > the clients, in the client PC (CLIENT1) I have the
> > fbClient.dll, the OBDC drivers, etc, my string
> > connection is: SERVER1:orgMainDb
> > 'orgMainDb' is an alias.
> >
> > What could be the problem? How can I verify the
> > communication between client and FB server? How can I
> > verify the port used by FB?
>
> First things first, can you "ping" the machine?
>
> If so, is the Firebird server running? (as in: is the process
> available in the list of all processes?)
>
> Next, what is the error message?
>
> Is there a firewall running or blocking the port (3050)?

To test this

telnet server1 3050

If you get a message like connection refused or could not open a
connection, then you probably have a firewall running or are possibly
running on a non default port.

I have never seen the error message "can't connect the clients",
posting the exact error is often enough to diagnose.

Adam