[CentOS] NTP error message on /var/log/messages

[Markus Falb]

> Mar 15 14:28:15 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument
> Mar 15 14:45:22 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument
> Mar 15 15:02:29 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument

i remember (or think so) i had this some time ago on one of my machines.
it turned out that 2 ntpd were running. if so, kill the "bad" one.

best regards,
markus