pn] Just a couple of clarifications.  Net8 (Oracle8 replacement for SQL*Net)
is not restricted to ports 1521 and 1526; they are just the most commonly
used (installation defaults).  Pick your desired port in both the
listener.ora on the server and in the tnsnames.ora on the client(s).  Net8
does have options for encrypting data transmitted between the server and
clients, but it requires special configuration settings on both the server
and client(s).  Any misconfigured client could send account userids and
passwords in clear text to the server.

> -----Original Message-----

> Oracle SQL*Net communicates on only 1521 or 1526 depending upon the
> version.  1521 is the one most used.  There is no dynamic ip assignment.
>  Make sure 1521 isn't only opened, but forwarded as well.  I'm assuming
> that you've put the Access server on the same net and made sure sqlnet
> is properly configured in the first place (i.e. the tnsnames.ora file on
> the Access server works).  If you did do this, make sure that you have
> the correct host name in the tnsnames file after you've moved it outside
> the leaf -- e.g.  If the Oracle server is using a nat'd IP
> (192.168.x.x), then your Access tnsnames file should show the ip address
> of the eth0 of the leaf machine, and the port should be whatever is the
> forwarded port.  I'd also suggest that you tunnel the SQL*Net connection
> through SSH if sensitive data is being transmitted.  Net8 doesn't
> encrypt any of the data, so all information is easily visible.  If you
> establish an ssh connection from the Access server to the LEAF, you can
> tunnel SQL*Net through SSH.


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