In your previous mail you wrote: > On 20/01/2014 17:12, Simon Perreault wrote: > > IIRC, recent versions of Bind open a socket per address on IPv4
=> not it is not by choice, just: - DNS requires to answer from the address the request was received - there is no standard/portable way to do this without the one socket per address in IPv4 (if you need an argument, just ask what this discussion is about :-) > this feature was one of the main reasons I stopped using BIND. It has the > side effect that you cannot necessarily set it up on a system which shares > IP addresses using e.g. VRRP, because you cannot be guaranteed that the > system will have the virtual IP address configured at the time that BIND > starts. Frustrating. => BIND polls from time to time interfaces to bind() to new addresses (again, there is no standard/portable way to be notified. BTW we (ISC) know this is a point which can be improved so if you know a generic simple solution...) Regards [email protected] (also [email protected])
