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DNS: Determining Zone Authority

DNS: Determining Zone Authority

The output of the following command will include adns1,2,3 if we are authoritative. If you get no answer, you have either typo'd the zone name or we are NOT authoritative.

Examples for which we are authoritative

[user@host]$ dig @adns1 NS +short
[user@host]$ dig @adns1 -x 144.92 NS +short
Examples for which we are NOT authoritative
[user@host]$ dig @adns1 NS +short
[user@host]$ dig @adns1 NS +short
[user@host]$ dig @adns1 -x 128.105 NS +short
Once you determine we are not authoritative, use dig to determine authority.
[user@host]$ dig NS +short

[user@host]$ dig NS +short

[user@host]$ dig -x 128.105 NS +short


This method can be used for second level domains and will work even if the authoritative DNS server is NOT correctly configured.
[user@host]$ whois  

Name Servers: 

Keywords:DNS: Determining Zone Authority   Doc ID:8965
Owner:Tim C.Group:DNS, DHCP, and IPAM
Created:2009-01-29 18:00 CSTUpdated:2020-08-04 10:12 CST
Sites:DNS, DHCP, and IPAM, Network Services, Systems & Network Control Center
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