tarunsh wrote:contrary to previously posted details, I STRONGLY suspect Firewall issue.
I'm planning to create a db link in oracle 10.2.0 database (running on Linux) to an Oracle 8.1.7 database (running on Windows 2000 server).
Firewall is opened. I can ping successfully ping -p 1521 <windowsserver> from linux box.
But when I'm trying to do tnsping to the dataabse I'm getting TNS:12535 error.
The entry in tnsnames.ora is copied from another system where it is working successfully.
Any idea, what could be wrong and how to resolve the issue?