Recently, I came across an issue with starting ODS managed servers after the backend server reboot. The error captured under OID $DOMAIN_HOME/sysman/log/emoms.log was - "javax.net.ssl.SSLKeyException: [Security:090479]Certificate chain received from hostname - IP failed date validity checks." The solution was applied on an OID 11g environment but should be applicable on other versions as well. 1. … Continue reading ODS Cluster Servers down and ODSM inaccessible