setting password for listener in oracle

Most of the time in IT Audit, one issue always raise  "No password is set for listener" .

Today I will show how to set password for listener.

There are 3 types in lsnrctl status for Security

1) ON: Local OS Authentication
2) ON: Password or Local OS Authentication
3) ON: Password

Will see below steps to configure password on listener.


LSNRCTL>status

Uptime                    0 days 0 hr. 0 min. 1 sec
Trace Level               off
Security                  ON: Local OS Authentication

check Security

LSNRCTL>change_password
LSNRCTL>save_config

 in listener.ora you will get following things

 #----ADDED BY TNSLSNR 14-OCT-2014 18:33:11---
PASSWORDS_LISTENER = 18463FBDF70465CE
#--------------------------------------------


LSNRCTL>status

Uptime                    0 days 0 hr. 1 min. 31 sec
Trace Level               off
Security                  ON: Password or Local OS Authentication

Now Security : password + OS authentication

Oracle 10g, operating system authentication for the listener has been implemented.
The listener checks to make sure you are part of the privileged dba group,
and if so it will grant you access to change the password, save configuration.

Remove OS authentication if required?

shutdown listener

put following in listener.ora
LOCAL_OS_AUTHENTICATION_LISTENER=OFF


LSNRCTL>status

Uptime                    0 days 0 hr. 0 min. 1 sec
Trace Level               off
Security                  ON: Password

now listener will work only through passsword

LSNRCTL>status    (gives error)
TNS-01169: The listener has not recognized the password.

how to logging through listner

LSNRCTL>set password

LSNRCTL> status   ( it will execute )