Enterprise Manager Base Platform - Version 13.5.0.0.0 and later
Information in this document applies to any platform.
2023-03-06 13:13:50,160 [MonitoringChecksumCheckMgr:MonitoringChecksumChecker-0] WARN checksum.MonitoringChecksumChecker logp.251 - Sleeping. Duration(msec) 960000
2023-03-06 13:14:17,623 [Job Step 140618970 Job Long-System Pool:JobWorker] ERROR target.EntityUtil logp.251 - PromoteTarget for agent: https :// <agent hostaname.domain name>:3872/emd/main/with changeSequence: 713159 got Exception with Message: unable to connect to http server at https :// <agent hostaname.domain name>:3872/emd/main/. [handshake has no peer] isTransientExceptionThrown: 0
oracle.sysman.emSDK.agent.comm.exception.VerifyConnectionException: unable to connect to http server at <https :// <agent hostaname.domain name>:3872/emd/main/. [handshake has no peer]
communication issue with TLSv 1.0/1.1. Agent can allow only TLSv1.2
emctl secdiag openurl -url https :// <agent host name.domain name>:3872/emd/main/ -ssl_protocol TLSv1.1
Oracle Enterprise Manager Cloud Control 13c Release 5
Copyright (c) 1996, 2021 Oracle Corporation. All rights reserved.
Log file: /tmp/OpenPage_2023_03_17_14_01_414159842175493534942.log
Opening page: https:// <agent host name.domain name>:3872/emd/main/
Using non-validating trust manager; all certificates will be blindly accepted.
Negotiated protocol: NONE
Getting the certificate chain
Following exception occurred when running OpenPage
javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated
1. Secure oms to restrict with "TLSv1.2" only
<OMS_HOME>/bin>./emctl secure oms -console -protocol "TLSv1.2"
2. Follow below steps on Agent
<AGENT_HOME>/bin/emctl secure agent
<AGENT_HOME>/bin/emctl config agent addinternaltargets
<AGENT_HOME>/bin/emctl config agent listtargets
<AGENT_HOME>/bin/emctl upload agent