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Listener Fails to Start on Linux, Errors with TNS-12542, Linux Error: 98: Address already in use (Doc ID 301014.1)

Last updated on JUNE 30, 2021

Applies to:

Oracle Net Services - Version 9.2.0.1.0 to 11.2.0.3 [Release 9.2 to 11.2]
Linux x86

Symptoms

Listener fails to startup, even though addresses in the LISTENER.ORA are unique.

TNS-12542: TNS:address already in use
TNS-12560: TNS:protocol adapter error
TNS-00512: Address already in use
Linux Error: 98: Address already in use

LISTENER.ORA example :

Cause

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