Hosts goes out of network immediately after reboot with "netconsole" service in RHEL.
Issue
- Frequently found few hosts to be out of network after the weekend reboot. We had to restart network service to bring back on-line.
- We find
SYNrequests coming to this server from outside where noportis opened toLISTENfor it. But not finding any response going out. We expect aTCP deny/RESETmessages. But nothing found. -
netstat -sshows outgoing IP packets dropped:Ip: 4272 total packets received 0 forwarded 0 incoming packets discarded 4264 incoming packets delivered 4390 requests sent out -> 1454 outgoing packets dropped <-
Environment
- Red Hat Enterprise Linux (All Versions).
- netconsole.
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