[Cialug] DNS and playing well with OSX

[Zachary Kotlarek]

On Sep 19, 2013, at 5:24 PM, Moder John II Lee <jmoder at me.com> wrote:

> OSXSLS1:~ administrator$ dig Centos1.(mydomain).net
> 
> ; <<>> DiG 9.6-ESV-R4-P3 <<>> Centos1.(mydomain).net
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12101
> (mydomain).net.	2463	IN	SOA	ns75.domaincontrol.com. dns.jomax.net. 2013091200 28800 7200 604800 600


To start with you probably want to do:
	dig @<your.authoritative.dns.host.ip> A Centos1.(mydomain).net
which will tell you whether or not that DNS server is willing and able to answer queries for the related A record, and will bypass any OS-level DNS settings. If you get an NXDOMAIN status like your test above (or anything other than NOERROR) you need to fix the authoritative server so it will accept queries for that record.

Once that is working as expected try:
	dig NS (mydomain).net
and make sure the answer you get points to the same server you tested above. If it does not there is a problem with your domain delegation -- the NS records from the next level up are not pointing to your DNS server.

	Zach

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