NS RRs in a different circular order
Yassine.Sissi at cec.eu.int
Yassine.Sissi at cec.eu.int
Mon Jan 21 15:07:45 UTC 2002
Hi,
I would like to know how the NS query works exactly. If i configure a number
of NS records for a zone, in which order those records will be used by
resolvers.
For the test, I configured my DNS server to not do recursion. If i try to
resolve a couple of times entries in the domain test.admin.net, I see the
result of served NS is always in a different circular order.
So my question(maybe very obvious) is: What mecanism is used to display the
list ?
NS RRs:
--------
$ORIGIN admin.net.
test IN NS ns1.test.admin.net.
IN NS ns2.test.admin.net.
IN NS ns3.test.admin.net.
IN NS ns4.test.admin.net.
nslookup:
----------
> test.admin.net.
Server: localhost
Address: 127.0.0.1
Name: test.admin.net
Served by:
- ns3.test.admin.net
10.0.0.3
test.admin.net
- ns4.test.admin.net
10.0.0.4
test.admin.net
- ns1.test.admin.net
10.0.0.1
test.admin.net
- ns2.test.admin.net
10.0.0.2
test.admin.net
> test.admin.net.
Server: localhost
Address: 127.0.0.1
Name: test.admin.net
Served by:
- ns2.test.admin.net
10.0.0.2
test.admin.net
- ns3.test.admin.net
10.0.0.3
test.admin.net
- ns4.test.admin.net
10.0.0.4
test.admin.net
- ns1.test.admin.net
10.0.0.1
test.admin.net
> test.admin.net.
Server: localhost
Address: 127.0.0.1
Name: test.admin.net
Served by:
- ns4.test.admin.net
10.0.0.4
test.admin.net
- ns1.test.admin.net
10.0.0.1
test.admin.net
- ns2.test.admin.net
10.0.0.2
test.admin.net
- ns3.test.admin.net
10.0.0.3
test.admin.net
Yassine Sissi
Internet Services / Security
EUROPEAN COMMISSION Luxembourg
EC/SNET LUX - JMO B2-088
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