Linux How-to Create and Start a Listener on Oracle 12c Step-by-Step Easy Guide

The Tutorial Show Visually How-to Create and Start a Listener on Oracle 12c Database by the Oracle Net Configuration Assistant on Linux Terminal.

The Process of Getting Started on Oracle Database Involve Several Steps Necessaries to Run the Database and Creating and Starting a Listener is Prerequisite to Successfully Starting the Database.

The Screenshots of the Steps Involved are Inserted here to Make the Lesson Easier and More Pleasant.

Create & Start a Listener on Oracle 12c with Network Configuration Assistant

1. Open a Terminal Window
2. Login as oracle User

   su oracle

3. Access Oracle 12c Installation Folder

   cd $ORACLE_HOME/bin

   If $ORACLE_HOME Not Properly Set OR Do Not Find netca Look:

   locate Command Quick-Start

   The Link Contains How-to Locating Files, Directories, Images and Icons on Linux.
4. Starting the Net Configuration Assistant

   ./netca

   In Case of Error: Oracle Net Services configuration failed. The exit code is 1. Look

   Troubleshooting 11g/12c Listener Creation

   The Linked Guide Contains Detailed Instructions on Troubleshooting Oracle 11g/12c Listener "Oracle Net Services configuration failed. The exit code is 1".
5. Click on Next
   
6. Click on Next
   
7. Set Listener Name and Click on Next
   
8. Click on Next
   
9. Click on Next
   
10. Click on Next
    
11. You Should Find a Confirmation Notice on Terminal about Listener Creation and Start-Up
    

    So the Listener is Now Created and Started. But before Starting to Manage you Oracle Database you Need also to Create an Oracle 12c Database

12. How-to Create and Start the Oracle 12c Database

    Oracle 12c Create Database

    The Tutorial Contains Detailed Instructions on How-to Create a Database Instance on Oracle 12c Database.