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I have configured the Nagios server and clients. My rest of remote clients work fine except one which show CHECK_NRPE: Socket timeout after 10 seconds. alerts for a specific time interval like 7 to 8 hours in day all services show socket timeout after and for rest hours it show correct status information about service. I have checked the nrpe file in xinetd.d. But still not able to find the actual cause. Is there is server hardening done for specific time period. I am using Centos 5 server.

Thanks in advance

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