Target Database or Enterprise Manager Repository Database Create Several TNS-12599 Errors in alert.log File (Doc ID 2270058.1)

Last updated on NOVEMBER 15, 2023

Applies to:

Symptoms

Monitoring a version 12.2 onward Oracle Database target in Enterprise Manager 13c Cloud Control, or using the 12.2 onward Oracle Database for an EM 13c repository, generates TNS-12599 errors in the database alert.log.

For a repository database, many TNS-12599 entries can always be found in the alert.log.

For a target database, when the "Test Connection" button is pressed in the Monitoring Configuration page in EM 13c, TNS-12599 can be found in alert.log.

Example:

***********************************************************************

NI cryptographic checksum mismatch error: 12599.

VERSION INFORMATION:
TNS for Linux: Version 12.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 12.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 12.2.0.1.0 - Production
Time: 11-MAY -2017 23:29:11
Tracing not turned on.
Tns error struct:
ns main err code: 12599

TNS-12599: TNS: cryptographic checksum mismatch
ns secondary err code: 12656
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
*********************************************************************

Changes

Cause

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.