Sometimes You can get “TNS-12541: TNS:no listener ” error.
Details of error are as follows.
TNS-12541: TNS:no listener
This error is related with the listener of database server, if you got this error, then check your database listener as follows.
$ lsnrctl status listener
Listener should be always started.
You can stop and start the Listener as follows.
$ srvctl start listener $ srvctl stop listener
$ lsnrctl stop listener $ lsnrctl start listener
Do you want to learn more details about RMAN, then read the following articles.