Showing posts with label Listener. Show all posts
Showing posts with label Listener. Show all posts

Monday, February 22, 2021

Protect Listener

 Protect Listener

Is there anyway to see Listener Password set status or any flags set anywhere than can be queried??, I don't have anything in the listener.ora file after I set a lsnrctl password.
Do I have to try to issue change_password then see if it errors out to determine the password is set?  


Password Protect Listener

LSNRCTL> start
Starting /home/ora9ir2/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 9.2.0.6.0 - Production
System parameter file is /home/ora9ir2/network/admin/listener.ora
Log messages written to /home/ora9ir2/network/log/listener.log
...
The command completed successfully

LSNRCTL> change_password
Old password:
New password:
Reenter new password:
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
Password changed for LISTENER
The command completed successfully

LSNRCTL> set password
Password:
The command completed successfully

LSNRCTL> save
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
Saved LISTENER configuration parameters.
Listener Parameter File /home/ora9ir2/network/admin/listener.ora
Old Parameter File /home/ora9ir2/network/admin/listener.bak
The command completed successfully
LSNRCTL> ^D


[ora9ir2@vmware admin]$ tail listener.ora
(GLOBAL_DBNAME = ora9ir2)
(ORACLE_HOME = /home/ora9ir2)
(SID_NAME = ora9ir2)
)
)


#----ADDED BY TNSLSNR 18-MAY-2006 10:27:15---
PASSWORDS_LISTENER = 20A22647832FB454
#--------------------------------------------

we are trying to password protect the listeners -- we have used the lsnrctl change_password command, etc.

We can start and stop the listeners by doing a interactive lsnrctl session:
ie...
lsnrctl
LSNRCTL> set current_listener lsnr_xxx
LSNRCTL> set password
xxxx
LSNRCTL> stop lsnr_xxx