Linux server restarts frequently

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http://www.linuxquestions.org – Hi there I have a CentOS 6 server, and recently I faced an odd problem. Server restarts unexpectedly, without any known reason. This was happened when I moved to a new data center. There is nothing wrong with the power supply, as the server has two redundant power supply, each one connected to a separate source of power (one through UPS, another one to a diesel generator). I checked /var/log/messages, and it only contains boot messages (not events before restarting). Can anybody give me a clue how to trace the problem? (HowTos)