[ntp:questions] 1 Machine, 2 NICs, 2 Instances of ntpd; Possible?

Unruh unruh-spam at physics.ubc.ca
Tue Mar 11 18:00:25 UTC 2008


John.Johnson at gdc4s.com (Johnson, John-P63914) writes:


>> 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
>one
>instance of ntpd.  However, I assure you that the manner in which I am
>trying to accomplish it is absolutely necessary for my particular
>application.

Uh, and we believe you why? It is very hard to imagine a situation where
what you want is "absolutely necessary".



>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
>interface
>that was not specified with '-I'.


>Thank you very much for the help.

>Cheers

>Johnny




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