Sqlnet.Encryption_server = Required -> Tns-04012: Unable To Start Oracle Connection Manager Instance

(Doc ID 1304402.1)

Last updated on NOVEMBER 14, 2016

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


On : version, RDBMS

When attempting to start Connection Manager the following error occurs.

TNS-04012: Unable to start Oracle Connection Manager instance.

The issue can be reproduced at will with the following steps:

1. add SQLNET.ENCRYPTION_SERVER = required in the file sqlnet.ora

2. CMCTL:cman> startup


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