[ntp:questions] 1 Machine, 2 NICs, 2 Instances of ntpd; Possible?
mayer at ntp.isc.org
Fri Mar 14 04:19:13 UTC 2008
Johnson, John-P63914 wrote:
>> One instance of ntpd is all that is necessary to perform both of these
>> tasks at the same time.
> I realize that what I am trying to do is very easily accomplished with
> instance of ntpd. However, I assure you that the manner in which I am
> trying to accomplish it is absolutely necessary for my particular
There is something here that you are not telling us.
> I found a definitive answer in the code.
> ntp_io.c, line 1232
> * Check to see if we are going to use the interface
> * If we don't use it we mark it to drop any packet
> * received but we still must create the socket and
> * bind to it. This prevents other apps binding to it
> * and potentially causing problems with more than one
> * process fiddling with the clock
> This explains why an instance was still receiving packets from an
> that was not specified with '-I'.
Not quite. It's more complicated than that. There are other addresses
involved like the wildcard addresses and the loopback addresses.
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