Bind to INADDR_ANY
Doug Barton
dougb at dougbarton.us
Wed Jan 11 01:53:57 UTC 2012
On 01/10/2012 17:34, Mark K. Pettit wrote:
> There are some caveats to trying to use "interface-interval" to pick up new IPs. If your BIND drops privileges (e.g., by using the "-u" command-line option to named), you might have a problem getting BIND to bind() to the new IP addresses.
>
> For example, on FreeBSD if you use "-u" to drop privileges, BIND will not be able to bind() to new addresses without modifying the kernel to allow non-root users to bind() to port 53.
>
> On modern versions of Linux, BIND can bind() to new IP addresses even with the "-u" option because the kernel has a mechanism to allow it.
>
> In my environment (FreeBSD) we've worked around this problem (just recently, in fact), and I can provide more details if there's any interest.
well I'm definitely interested. :)
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