Question about authoritative server and AA Authoritative Answer

pub.diemer29 at laposte.net pub.diemer29 at laposte.net
Sun Jan 14 22:04:14 UTC 2024


‌Ders bind users,

I have already asked a similar question which was more about DNS in general , this one is very specific about the AA bit.

Today's question is : « "dig pc1.reseau1.lan ns" show AUTHORITY: 1 and "dig pc1.reseau1.lan" shows AUTHORITY: 0. Which setting or knowledge am I missing ? If possible, how to get AA answers for QNAME queries ? »

I have set up two virtual machines on a virtual local network using Oracle VirtualBox. One machine is a DNS authoritative-only server. The zone is named "reseau1.lan" and defined only in bind9 zone files. If I really have to, I will name it "reseau1.home.arpa" according to RFC 8375. (I chose .lan inspired by RFC 6762 appendix G). The IP address of the DNS server is 172.16.0.254 and the IP address of pc1 is 172.16.0.21.


dig soa reseau1.lan : the AA bit is set, which is what I am looking for

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 dig pc1.reseau1.lan ns :  the AA bit is set

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dig pc1.reseau1.lan : the AA bit is not set. Why ? Which setting or knowledge am I missing ?



Below my "named.conf.options" file

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