ntpd not adjusting the clock?

[Alex Zbyslaw]

Matthew Seaman wrote:

>That means that anyone can connect to your NTP daemon and poll it for time
>service or use ntpdc to muck around with your configuration.  It's better
>to use at minimum:
>
>    restrict default nopeer nomodify
>    restrict localhost
>  
>
You *can* block that kind of unwanted external access with a firewall, 
though it can get tricky with NAT in the equation.

--Alex