以下のようなエラーが出る。 sudo ntpdate -d timeserver 12 Dec 15:58:00 ntpdate[30741]: ntpdate 4.2.6p3@1.2290-o Tue Jun 5 20:12:09 UTC 2012 (1) Looking for host timeserver and service ntp Exiting, name server cannot be used: Temporary failu…