<<< I am reposting this because it was bounced back to me - ??? - Chris >>> Hi Luiz, You cannot publish Oracle with a simple protocol rule. The problem is that 1521 is the listening port for the *listener* process only - you never know what port the listener will redirect the client to. To solve this problem, you can install Oracle's Connection Manager and use it to pass people through the firewall. For example, I run Connection Manager behind ISA, and I use server publishing to let people access the Connection Manager. The Connection Manager configuration file (CMAN.INI) is then configured to allow connection requests to certain listeners on my internal network. More background: The reason Connection Manager works through a firewall is that its port is predictable, and the client stays connected to it when using a "routed" connection. On the other hand, although the port a client uses to connect to the listener is predictable, the final port used to connect to Oracle is not. Because of this (and because, to state the obvious, the listener and Oracle are two *different* processes), you can't succeed by simply publishing the listener's port (1521 in your case). The initial connection to the listener may succeed, but the redirected connection to Oracle will fail. To learn more about Connection Manager, check the Net8 Administrators Guide (for Oracle 8i) or the Oracle9i Net Services Administrator's Guide. Hope this helps! Chris ______________________________ Chris Leonard MCSE, MCDBA, MCT, OCP, CIW The Database Guy at PPI http://www.propoint.com Brainbench MVP for Oracle Admin http://www.brainbench.com > Subject: Oracle Client > From: "Luiz C Zanoni" <lczanoni@xxxxxxxxxxxx> > Date: Wed, 29 May 2002 17:45:57 -0300 > X-Message-Number: 25 > > Hi, > > I'm having trouble to publish an oracle server, so an external oracle client > can access the server behind ISA Server. Is Just create a protocol rule, ( > TCP- 1521 - Inbound ) and publish the server ??? > It doesn't work ! > > Does anyone experienced this problem ?? > > Thanks > > Luiz