bind 8.2.4: limiting used memory?
Brad Knowles
brad.knowles at skynet.be
Tue Aug 7 15:38:57 UTC 2001
At 2:01 PM +0200 8/7/01, Michael Renzmann wrote:
> That shurely is true. Another thing I did not mention by no
> is that this "dns cache" should resolve another problem.
> Currently, many customers have many clients in their network.
> Each client has the ISP dns configured. Now the IP of the DNS
> have to be changed. In order to avoid problems like this the
> router should be the institution that answers to every dns
> query. Therefor it has to forward the queries to the correct
> DNS. If it caches the queries or not the main point. It is a
> side effect. If the effect is nearly useless as you pointed
> out, we could leave this feature away.
You could do that by using the firewall/NAT software and simply
redirecting the DNS queries to the IP address(es) that the device
itself is configured to know about, and avoiding any actual
nameserver software at all.
> In fact DJB wrote a nice program that seems to do what I
> want. But it seems to depend on his own daemontools, which I
> don't want to introduce as well to the system besides the
> dnscache program. But this is offtopic here.
I have a whole list of reasons why you should avoid using his
programs. I've articulated a number of them on this mailing list,
and you may want to see the archives to read them. At this point, I
think I'm up to about #22, although I haven't yet updated the written
list to this point.
> Intrinsync is currently testing a new version of the
> CerfBoard which has a pcmcia port instead of the compact
> flash port. This is the better solution for usage with
> 802.11b wlans as such cards for pcmcia are much cheaper than
> those fitting the compact flash socket. Besides that I doubt
> there will be a lack of drivers for the compact flash
> versions of cards in the next months.
Certainly, a PC Card interface would make it a lot easier to add
a current WLAN card, and hopefully they would have other improvements
as well (more RAM on-board, more flash RAM built-in, etc...).
However, if push came to shove, I think I could get it done with the
current model of the CerfBoard and/or the CerfCube.
--
Brad Knowles, <brad.knowles at skynet.be>
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