[ntp:questions] Re: restrict options

Danny Mayer mayer at gis.net
Tue Jul 12 02:40:37 UTC 2005


Harlan Stenn wrote:
> Dave,
> 
> As I understand it, the problem is the "restrict" line allows one to use
> a name but if the name resolves to multiple IPs then only the first IP
> returned is used for that "restrict" clause.
> 
We could actually add all of them but I don't think that's a good idea.
You only want to add the one that gets used. The problem is figuring out 
which one that is.

> This problem is compounded for the case where there are "enough" IPs that
> they will not all fit in a single return packet.
> 

If you mean one DNS UDP packet, EDNS0 helps a lot. Otherwise you notice 
the truncation bit is set and try again using TCP.

Danny
> H



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