This article explains the steps for creating a listener using NETCA GUI utility.

NOTE – > utility need to execute from XMANAGER/XSHELL(From where we can call GUI),Just like DBCA or DBUA utility.

1. Set appropriate ORACLE_HOME as per requirement( EITHER GRID HOME OR ORACLE DB BINARY HOME)

export ORACLE_HOME=/oracle/app/oracle/product/12.2.0/dbhome_3

export PATH=$ORACLE_HOME/bin:$PATH

2. execute NETCA

 

 

 

 

Make sure the port number not used on that server.

 

 

 

The listener got created.

Check the status:

 lsnrctl status LISTENER_TEST

LSNRCTL for Solaris: Version 12.2.0.1.0 - Production on 04-MAR-2018 11:03:31

Copyright (c) 1991, 2016, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=dbaclass-host)(PORT=1587)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER_TEST
Version                   TNSLSNR for Solaris: Version 12.2.0.1.0 - Production
Start Date                04-MAR-2018 11:01:35
Uptime                    0 days 0 hr. 1 min. 56 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /oracle/app/oracle/product/12.2.0/dbhome_3/network/admin/listener.ora
Listener Log File         /oracle/app/oracle/diag/tnslsnr/dbaclass-host/listener_test/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbaclass-host)(PORT=1587)))
The listener supports no services -- >>>>>>      NO SERVICES AVAILABLE.

It shows listener supports no services, because no database has registered with this listener.

Follow below steps for registering the listener port with the database .

1. Add the entry in tnsnames.ora file of the binary.

LISTENER_TEST =
  (ADDRESS = (PROTOCOL = TCP)(HOST = dbaclass-host)(PORT = 1587))

2. Set local_listener parameter and register.

SQL> alter system set local_listener='LISTENER_TEST' scope=both;

System altered.

SQL> alter system register;

System altered.

3. Check the listener status again:

# lsnrctl status LISTENER_TEST

LSNRCTL for Solaris: Version 12.2.0.1.0 - Production on 04-MAR-2018 11:05:15

Copyright (c) 1991, 2016, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=dbaclass-host)(PORT=1587)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER_TEST
Version                   TNSLSNR for Solaris: Version 12.2.0.1.0 - Production
Start Date                04-MAR-2018 11:01:35
Uptime                    0 days 0 hr. 3 min. 39 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /oracle/app/oracle/product/12.2.0/dbhome_3/network/admin/listener.ora
Listener Log File         /oracle/app/oracle/diag/tnslsnr/dbaclass-host/listener_test/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbaclass-host)(PORT=1587)))
Services Summary...
Service "POCD" has 1 instance(s).
  Instance "POCD", status READY, has 1 handler(s) for this service...
Service "POCDXDB" has 1 instance(s).
  Instance "POCD", status READY, has 1 handler(s) for this service...
The command completed successfully

We can see that the service is available now.:)