Nagios time in far future
In case of the time being too far in the future you can go to:
/etc/init.d/nagios stop
mv /var/nagios/retention.dat{,.old}
/etc/init.d/nagios start
In case of the time being too far in the future you can go to:
/etc/init.d/nagios stop
mv /var/nagios/retention.dat{,.old}
/etc/init.d/nagios start