Re: Firewalls and Oracle

Scott,
Sounds like your listener.ora file is missing the PORT setting out of the ADDRESS parameter. Should be something like this ...

 (ADDRESS_LIST =

[Quoted]         (ADDRESS = (PROTOCOL = TCP)(HOST = otto)(PORT = 1521))
      )

Chris.

Scott Dunbar wrote:
>
> Hi,
> We are attempting to connect from an Oracle client to an Oracle
> server (all in the 8.1.x series) through a firewall. With a little
> experimentation it appears that the Oracle client does an initial
> connect() to the TNS listener but then an additional connection is
> made using an O/S assigned port. The problem is this second
> connection. Because it is O/S assigned it cannot be configured into
> the firewall. For a variety of reasons we have issues with using a
> "Net-8" compatible firewall (Oracle's solution).
>
> Is the number of this "return" port configurable? I'm guessing
> not as that could have the side affect of limiting (to one!) the
> number of clients that can be run on a particular box. Alternatively,
> is there a way to convince Oracle to use only one connection? As a
> side note, doesn't this scheme eat up file descriptors twice as fast
> as using the single connection? On most O/S's this isn't a big deal
> anymore but I guess SunOS 4.x (without DBE) scared me into being
> conservative with fd's.
>
> Thanks in advance for any information.
>
> --
> Scott Dunbar Global Commerce Systems
> dunbar_at_commerce.com Boulder, CO, USA
> HTML mail ok
> Received on Thu Jun 24 1999 - 00:12:20 CEST