Enterprise Manager Generic (MOSC)

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OMS to Agent communication failure

edited Nov 1, 2018 2:25PM in Enterprise Manager Generic (MOSC) 3 commentsAnswered

We have ~800 agents/hosts monitoring around 25k targets.  We recently found an issue where the OMS is unable to communicate to the agent due to fact the host has enabled iptables for incoming traffic.  The agent to OMS was ok, but OMS to agent was blocked.  In the OEM console, the agent was shown up, no alerts came through.  When we selected the agent target in console, there it showed a red box warning that it cannot communicate to the agent.   How do we setup alert/monitor such issue?

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