Hello red oracle
Sorry but my english is not very well.
This other day I have had a problem in a single instance oracle version 12c.
I use toad software for work and other program how oracle console enterprise manager 10g version and Insider monitor software
This program shows me this error
ORA-28040 - no matching authentication protocol
Searching the internet I find a solution
This workaround is to edit the sqlnet.ora file and add this parameters in the file
SQLNET.ALLOWED_LOGON_VERSION = 8
SQLNET.ALLOWED_LOGON_VERSION_CLIENT = 8
SQLNET.ALLOWED_LOGON_VERSION_SERVER = 8
Sqlnet.expire_time = 30
My problem is solved but in a single instance, not in my RAC instance.
In my RAC ORACLE I have had this same problem, but the difference of a single instance of my listener is uploaded by the grid user not from the oracle user.
My Rac Oracle have two nodes
users: grid and oracle
Group: asmadmin, asmoper, asmdba, dba, oinstall
Disk group
CRS
DATA
FRA
REDO
FileSystem
/
/boot
/tmp
/var
/opt
/u01
I hope you can help me
Regards