Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
Please make sure that your parenthesis are matched when you edited your tnsnames.ora and listener.ora files.
You can use tnsping command from command prompt to verify the connectivity and your TNS Service Name Descriptor. This will also give the path for the TNS_ADMIN folder in use.
Please post your listener.ora and tnsnames.ora files.