Not going to spend an age on this, just to say 13.5 is now available - a lot of information on the web already :
https://www.markusdba.net/2021/04/10/upgrade-enterprise-manager-cloud-control-to-13-5/
Going to upgrade my "sandbox" OEM to 13.5 and will post on that instead.
Recently moved to 13.4 - mainly as the Adobe Flash end of support was at the end of 2020.
The migration from 13.2 to 13.4 was pretty painless but did hit a problem when moving the agents.
EM 13c: OMS Communication to all Agents Failing with "[handshake has no peer]" but Agents are able to Upload Successfully to the OMS (Doc ID 2381313.1
/u02/app/oracle/middleware2/oracle_common/jdk/jre/lib/securityWas
# jdk.tls.disabledAlgorithms=MD5, SSLv3, DSA, RSA keySize < 2048
jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, DH keySize < 1024, \
EC keySize < 224, 3DES_EDE_CBC, anon, NULL
As per the doc from the original 13.2 version - this works
# jdk.tls.disabledAlgorithms=MD5, SSLv3, DSA, RSA keySize < 2048
jdk.tls.disabledAlgorithms=SSLv3, MD5withRSA, DH keySize < 768
Not exactly sure what “revert back the changes made to disable the MD5withRSA algorithm” – I read it as per 13.2 ?
After a stop / start of OMS it was then ok.
