oracle directory permssions and listener 2004-10-12 - By McAllister, Andrew
Well let's just agree to disagree. On MY servers, I have a firewall
installed that blocks ALL inbound connections except to port 22 and
1521. So if my clients behaved as you describe, they wouldn't be able to
connect after the handoff to the new port. Yet they do stay connected.
My firewall does not know how to handle a hand-off connection from
sql*net.
No additional connections exist between the client and server except
from the client high-order port and the server 1521.
Running netstat -a on the server shows only 1521 connections from my
clients.
Possible that the difference is dedicated vs multi-threaded server mode?
I run dedicated only.
Andy
> -- --Original Message-- --
> From: Hollis, Les [mailto:Les.Hollis@(protected)]
snip
> Now, once the connection is MADE, through port 15xx (1521 if
> you prefer) a
> response is sent to your client that directs the actual
> connection to a port
> other than that of the listener. Your client then reconnects to the
> database with the port number supplied to it.
>
> Take a look at a listener.log and see what port numbers you
> are actually
> conversing on somewhere in the 30000 and up range
> typically.... but not
> always true it depends on the server.
snip
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