Cannot configure listener in Oracle NET Configuration Assistant

Question

When I open Oracle NET Configuration Assistant, I cannot select Listener configuration as it is grayed out. I have tried "Run as Administrator" and nothing changed.

Can anybody help with this strange issue?

Answer 1

This can happen when you are running NET Configuration Assistant from Oracle Client and not from Oracle Database.

To be sure, please check the Oracle Inventory XML file.

If you are under Windows, the file is normally located at c:\\Program Files (x86)\\Oracle\\Inventory\\ContentsXML\\inventory.xml or c:\\Program Files\\Oracle\\Inventory\\ContentsXML\\inventory.xml .

If you are on linux, you can find the location of Inventory with this command: cat /etc/oraInst.loc . Inside it you will find ContentsXML directory with inventory.xml file.

Inside the inventory.xm l you can find all the installed "Oracle Home" directories. If you can find more than one line starting with <HOME NAME= , that means that you have more than one ORACLE HOME installed on your system (it can be Oracle HTTP Server, Weblogic, Oracle client etc...)

So now you need to find something that looks like an Oracle Home for Database server. It can look like this:

<HOME NAME="OraDB12Home1" LOC="/u01/app/oracle/product/12.2.0/dbhome_1" TYPE="O" IDX="1"/>

Please notice the OraDB part. The client will have OraClient there.

Then go to the directory, that is inside the LOC tag. Inside it go into bin subdirectory and run the netca or netca.exe from here. You will have listener configuration available.

Answer 2

I tried by getting into the BIN directory, and did run the netca from here, still I am unable to get this working.

I still see the Listener configuration grayed out.