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sed -i -e "s/^server 0.centos.pool.ntp.org iburst$/server ptbtime1.ptb.de iburst\nserver ptbtime2.ptb.de iburst\nserver ptbtime3.ptb.de iburst\nserver 0.centos.pool.ntp.org iburst/" /etc/ntp.conf chkconfig ntpd on ntpdate ptbtime2.ptb.de service ntpd start |
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