On Friday our security department has disabled support for TLS 1.1 because it is not secure.
Since then I cannot connect to MySQL database anymore : message :
“Checking local database failed: The client and server cannot communicate, because they do not possess a common algorithm”
I see that this question has been inactive for some time. Do you still need more information for this? If not, could you select Brent’s answer to indicate that the question is resolved?
I have “selected” Brent’s answer, but I do not see any change. Is it ok now ?
The compatible TLS versions supported by dataminer are dictated by the MySql.Data.dll in the files directory. The version with cu21 is 6.9.12.
This version supports TLS 1.0 and TLS 1.1 for Community editions, and TLS 1.2 if the MySQL is an enterprise version.
So in short DataMiner 10.2 CU21 supports TLS 1.0/1.1 for all MySQL versions, and TLS 1.2 for Enterprise MySQL Installations.
With release note: https://docs.dataminer.services/release-notes/General/General_Main_Release_10.3/General_Main_Release_10.3.0_CU14.html#mysqldatadll-updated-to-version-830-id_39152 the MySql.Data.dll has been changed to version 8.3.0. Available in DataMiner version 10.3.0 CU14, but not available in 10.2.0 as that version range does not receive the regular updates anymore since November 2023
Connecting to the sldmadb with Mysql workbench works still fluently.