ports and firewall
hi,
the initial connection is made to 1521. then the listener sends back the port number of the server process (or dispatcher), and we connect to that,
my question is, if the database server is behind a firewall, and the firewall team need to know which ports they need to open, how can we tell them? I mean, we can tell them 1521, but then the listener might choose any port number for a dispatcher or server process. So how is this tackled?
thanks