Bind8 make every 4sec. a DNS-lookup

[Christian Birkmeier]

Hi,

I have an Dial-on-Demand Connection configured on that computer. My
Bind8 Nameserver does every 4sec. a DNS-Querry. Tcpdump -i sl0 show´s
that:

21:01:16.858929 fw.home.net.61002 > 202.12.27.33.domain: 3816 NS? . (17)
21:01:20.858929 fw.home.net.61002 > 192.112.36.4.domain: 3816 NS? . (17)
21:01:24.858929 fw.home.net.61002 > 128.63.2.53.domain: 3816 NS? . (17)

Why does my NS that querrys?!?

/etc/named.conf

options {
        directory "/var/named";
        check-names master warn;

        pid-file "/var/run/named.pid";

        datasize default;
        stacksize default;
        coresize default;
        files unlimited;
        recursion yes;
        multiple-cnames no;
        cache . named.cache
        forwarders {
          nameserver 62.104.219.86
          nameserver 62.104.196.134
        };
};
zone "." {
        type hint;
        file "root.hint";
};
zone "localhost" {
        type master;
        notify no;
        file "localhost.zone";
        check-names fail;
        allow-update { none; };
};
zone "0.0.127.in-addr.arpa" {
        type master;
        notify no;
        file "127.0.0.zone";
        check-names fail;
        allow-update { none; };
};
zone "home.net" {
        notity no;
        type master;
        file "home.net.zone";
};
zone "0.168.192.in-addr.arpa" {
        notify no;
        type master;
        file "192.168.0.zone";
};

/var/named/home.net.zone
--zip--
home.net.       IN      SOA     ns.home.net. hostmaster.home.net. (
                        28
                        8H
                        2H
                        1W
                        1D )
                NS      ns
ns              IN      CNAME   gw
gw              IN      A       192.168.0.1
--------

/var/named/root.hint

--zip--
.                        3600000  IN  NS    A.ROOT-SERVERS.NET.
A.ROOT-SERVERS.NET.      3600000      A     198.41.0.4
.                        3600000      NS    B.ROOT-SERVERS.NET.
B.ROOT-SERVERS.NET.      3600000      A     128.9.0.107
.                        3600000      NS    C.ROOT-SERVERS.NET.
C.ROOT-SERVERS.NET.      3600000      A     192.33.4.12
--------

I tryed the root.hint like in the DNS-HOWTO described:

--zip--
=2E     6D IN NS        A.ROOT-SERVERS.NET.
=2E     6D IN NS        B.ROOT-SERVERS.NET.
=2E     6D IN NS        C.ROOT-SERVERS.NET.
A.ROOT-SERVERS.NET.     5w6d16h IN      A       192.41.0.4
B.ROOT-SERVERS.NET.     5w6d16h IN      A       128.9.0.107
C.ROOT-SERVERS.NET.     5w6d16h IN      A       192.33.4.12
--------

After a restart of bind8, the permanent querrys were gone but the NS
can´t answer querry´s like www.linux.de.

Can anybody help me, please!

Christian