[CentOS] how to set ntpd listen only 127.0.0.1 ?

2009/6/12 MontyRee <chulmin2 at hotmail.com>:
> Hello, all.
>
> I would like to use ntpd for time sync not rdate or ntpdate.
>
> but after installation the ntpd, I found that listened at all interfaces
> like below.
>
> udp        0      0 192.168.111.2:123
> 0.0.0.0:*                               11528/ntpd
> udp        0      0 xxx.xxx.62.20:123
> 0.0.0.0:*                               11528/ntpd
> udp        0      0 127.0.0.1:123               0.0.0.0:*             &
> nbsp;                 11528/ntpd
> udp        0      0 0.0.0.0:123
> 0.0.0.0:*                               11528/ntpd
>
>
> Is there any way or option that only listen 127.0.0.1 for security reason?
>
>
> Thanks in advacne.
>
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You could also ditch the ntp daemon (uncheck it in ntsysv) in favour
of running `ntpdate some.time.server` every now and then from cron.
e.g.
@hourly /usr/sbin/ntpdate ro.pool.ntpdate.org

Sure, it might not be as elegant and practical, but it works.