[lug] ntp.conf options

[charles at lunarmedia.net]

well, i don't so much mind the fact that its using udp123, but the fact
that its binding to all the subinterfaces. ipchains would stop the traffic
before it started, true. i was hoping however that i could prevent it
within the software.

thanks

On Thu, 25 Jan 2001, D. Stimits wrote:

> charles at lunarmedia.net wrote:
> >
> > is there a 'listen-on' param or something similar that i can stick into
> > ntpd.conf to limit what ip address my machine listens on udp 123? right
> > now i have about 2 dozen subinterfaces configured and they all show up as
> > :123 under netstat.
> >
> > thanks -cjm
> >
>
> I know nothing about ntpd.conf, but you can use ipchains to allow or
> deny in any combination you want port 123 for access to various ip's.
> /etc/services is how names are associated with particular port numbers,
> though there are a lot of programs that can listen on a given port
> without naming it there; if it is named there, then you can change the
> port number by changing the name-to-port association in /etc/services
> (won't take effect till you restart inetd, e.g., killall -HUP inetd).
>
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