SQL and Linux Agents are unable to connect to the Engine.
Authentication mode is set to LOCAL
Messages taken from the Linux Agent log file can show this kind of error messages.
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20230215/141857.714 - U02000377 Certificate loaded from file '/etc/pki/tls/certs/ca-bundle.crt'.
20230215/141857.714 - U02000398 Loading certificates from the directory '/opt/uc4/executor/bin/security' that is specified in the parameter'AgentSecurityFolder'.\
20230215/141857.715 - U02000376 Could not parse certificate '/opt/uc4/executor/bin/security/USR09543LX.COMITEE.COM.pem'. Please make sure that the certificate is in PEM format.
20230215/141857.726 - U02000004 Connection to Server 'AWAD01#CP008' successfully created.
20230215/141857.726 - U02000297 Agent doesn't have valid certificate, requesting new one from server.
20230215/141857.741 - U02000401 Received JCP server list: 'https://usr09543lx.comitee.com:2224/;https://usr09543lx.comitee.com:2223/;https://usr09545lx.comitee.com:2221/;https://usr09545lx.comitee.com:2222/'
20230215/141942.979 - U00000009 'USR09543LX.COMITEE.COM': Access denied
20230215/141942.979 - U02003073 Agent Prozess 'AGENT,PID=47329' shutdown has been initiated.
20230215/141948.028 - U02000041 Shutdown Agent 'USR09543LX.COMITEE.COM'.
20230215/141948.028 - U02000001 Agent 'USR09543LX.COMITEE.COM' version '21.0.5+build.1676022488179' ended normally.
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Agents in version 21.0.4 can connect without any problem to the engine with the same Authentication mode (LOCAL or LOCAL_REMOTE)
Automation Engine and Agents in version 21.0.5
This is a defect of the Automation Engine 21.0.5 : Agents are unable to connect to the Automation Engine when authentication mode is set to LOCAL or LOCAL_REMOTE.
It will be fixed in Automation Engine package 21.0.5 HF1.
AE 21.0.5 HF1 will be available shortly.