How to resolve “TNS-12541 : TNS : no listener” error

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In this article, you will get to know the process of How we can resolve “TNS-12541 : TNS : no listener” error in Oracle 11g.

To resolve “TNS-12541: TNS: no listener” error we need to follow below steps.
Sometimes we will get this issue when our listener is not up and running so first we need to check whether our listener is up and running.

Step 1) To check whether our listener is up or running, we need to run below command
Command : – ps -ef | grep tns
Example: –

"TNS-12541 : TNS : no listener" error

Note: – In this case, my listener is not started,  So I need to start my listener
Step 2) To start the listener, we need to run below command
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Command : – lsnrctl start
Example: –
Step 3) Now again check the status of listener whether it is up and running, It should be up and running
Command: – ps -ef | grep tns
Example: –
Note: – Now my listener is up and running properly

Hope this blog will help you!!

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