On Wed, 16 Jun 1999 18:14:35 +0100 (BST), hai scritto:
>> Here's my question: I have a local network with DNS running. Whenever it
>> resolves the local names, it starts up diald. Can I set it up so that it
This shouldn't happen, check named settings.
>There seems to be no way to stop named calling out whenever it feels like
>it (typically several times an hour). The only thing you can do is use
>the lines in the standard.filter, which stop named-named packets bringing
>the link up.
One thing that is clear is that when named starts it tries to reach one of the
root nameservers in order to get a new list of the root servers (this is
explained in the docs).
To stop this I was told to change from
zone "." {
type hint;
file "named.ca";
};
to
zone "." {
type master;
file "named.ca";
};
Haven't tried yet.
Another problem I have with a libc5 system (Caldera), and that doesn't happen
with rh60, is that whenever a prog accesses the modem, named starts a dns
lookup for the name of the prog (yes, it searches for "chat" "cu -l ttyS0").
To debug named you can turn on debug with 5/6
killall -10 named
in a row, and then tail -f /var/named/named.run.
>I currently have things set up so that all the other machines explicitly
>specify an off-site nameserver (our ISPs) and have the standard filer
>filter out the named-named packets. This basically works, but means I
So do I.
>can't change ISP transparenly to the other machines. it may also not be
>an option if you need to use the local nameserver for some reason.
You can use dhcp to set up the clients, telling them dns, gateway...
>will work. Also it seems that my local /etc/hosts is being ignored some
>of the time, and I don't really understand enough about how it all hangs
Some progs ignore it.
>I also find that this set up means that if i turn on the windows machines
>they dial out 6 times an hour trying to do netbios lookups. I could block
>these, or point them at the local nameserver, but sometimes I want to
>look things up off-site so this isn't too great either.
You can block netbios lookups (local) and let dns lookups (for the internet)
go on.
>server to anyone. Is there some mechanism for dhcp to add entries to
>/etc/hosts or to tell named which machines have been allocated names, or
This would be dynamic/DNS. MS does it its way.
On linux there are perl scripts which read the dhcpd lease log and update the
named zones. The lates versions of BIND/named have an interface for this, we
have to wait for dhcpd to use it.
However this is not so useful, unless you keep servers on the clients.
>does it all have to be done via samba's name-lookup stuff/wins? (I
>realise this has nothing to do with diald directly, but I ask as it's all
>part of the same set of problems).
Samba can only do wins, but if you don't have many clients the broadcast based
name-resolving system is ok.
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