I am not sure though, if I need to start the watchdog daemon at all - because I altready have these lines in my dmesg: iTCO_vendor_support: vendor-support=0 iTCO_wdt: Intel TCO WatchDog Timer Driver v1.07rh iTCO_wdt: Found a Lynx Point TCO device (Version=2, TCOBASE=0x1860) iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0) Does it mean there is some "hardware watchdog" active at my CentOS 6.4 / 64 bit (Haswell CPU) server already? Thank you for any hints Alex