DNS error

[Sandile]

hi all

Anyone can please help me ,I am debugging my dns errors here but the problem is with the error message that says "nslookup reports danger".What does that mean ?

I've managed to debugg all other errors except this one.
Thanks
Sandile

[eran maor]

This message indicates that your DNS server has been configured to query itself
when it cannot find what it is looking for. If DNS did not catch this error,
then it would be possible to put the named into a infinite loop, where

named gets a name/ip to lookup, and cannot find it
named passes on the name/ip to nameservers it has been told to
use when it cannot find information it needs
named gets a query FROM ITSELF of this same name since the DNS
servers' own IP address appears in the list of nameservers in step 2.




Bottom line: The DNS server's ip address cannot appear in the db.cache file
or in the forwarders statement found in named.boot.


Example. This ip address of this DNS server is 15.1.1.1. Then the line
"forwarders 15.1.1.1 ...." in /etc/named.boot

or the entry
. 99999999 IN NS .
dns_server_name . 99999999 IN A 15.1.1.1

in db.cache would cause this error.