Persuading BIND 8.2 not to endlessly cause dial-ups

[Mark_Andrews at isc.org]

	This is nscd refreshing its cache.

	Uncomment the following line in /etc/nscd.conf:
	enable-cache            hosts           no

	Mark

> I'm running a private network which connects, via and on-demand dial-up
> to the Internet via a Sun sparc running Solaris.
> 
> I've recently upgraded from Solaris 2.5.1 to 2.6. Once I did this, my
> dial-up link was endlessly coming up to handle DNS queries, despite the
> lack of anything needing them. Since 2.5.1 uses BIND 4.8 and 2.6 uses
> 4.9, I switched to BIND 8.2, hoping that the dialup option would lead to
> some calm. Things have got better, but ...
> 
> Every hour to hour and a half, or so, my logs indicate that there is a
> query for what would appear to be every address that has ever been
> handled by the server, even ones several days old. Fiddling with the
> heatbeat, etc. parameters seems to make no difference. I've slowly
> eliminated every non-essential daemon I can find, to see if there is
> something constantly making requests.
> 
> I'm unwilling to use my ISPs DNS servers, as I use DNS for the various
> machines on my private network.
> 
> I'm using the following options:
> 
> options {
>     directory "/var/named";
>     forwarders {
>         203.30.77.150;
>         203.30.77.33;
>         203.8.183.1;
>     };
>     forward first;
>     dialup yes;
>     heartbeat-interval 1440;
>     cleaning-interval 60;
>     interface-interval 0;
>     statistics-interval 1440;
>     listen-on { 127.0.0.1; 10.19.13.1; };
> };
> 
> Does anybody have any insight to offer me on what is going on? Pointing
> out an obvious and stupid mistake would be wonderful, of course.
> -- 
> Doug Palmer   Applied Financial Services
> WWW: http://users.orac.net.au/~doug
> mail: doug at afs.net.au, dougal at acm.org
> 
> 
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org