1.7.1: Bind 9.6.0-P1 on Vista: could not listen on UDP socket: not enough free resources

[François Donzé <francois dot donze at hp dot com>]

On my Vista SP1, named cannot listen on a Interface, because it cannot 
open any socket. In order to minimize the number of needed sockets, I 
asked /etc/named.conf to listen on a single interface:

listen-on { 192.168.222/24 ; }

However, named -g still returns:

...
15-Feb-2010 16:33:33.279 less than 128 UDP sockets available after 
applying 'reserved-sockets' and 'maxsockets'
...
15-Feb-2010 16:33:36.435 listening on IPv4 interface 
{5DAF3057-DBA6-4354-A5FA-6171C8, 192.168.222.1#53
15-Feb-2010 16:33:36.437 socket: file descriptor exceeds limit (128/64)
15-Feb-2010 16:33:36.437 could not listen on UDP socket: not enough free 
resources


I Understand that Vista has a very limited number of available sockets, 
but could not find a nice way to increase this number. I could find 
drivers hacking the registry or patches to the IP stack but don't feel 
very confident with those....

Any hint appreciated,
François


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