-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Anand Buddhdev Sent: Tuesday, October 11, 2016 9:28 AM To: CentOS mailing list centos@centos.org Subject: Re: [CentOS] Hint for nslookup wanted ...
On 11/10/16 15:23, Richard Mann wrote:
Did your google break?
For just IPv6 nslookup -type=AAAA www.example.com
For all records nslookup -type=any www.example.com
This is bad advice, because in DNS, ANY != ALL
As I said: For all records. Reading comprehension can be important.
If you query with qtype=any, and you ask a caching resolver, then it will return to you all the records that are in its cache at that time, which may or may not include the records you want.
In order to definitively get the A as well as the AAAA records, one needs to ask for them specifically:
nslookup -type=AAAA www.example.com nslookup -type=A www.example.com
This makes a cache explicitly look up those types of records if it doesn't already have them.
Regards, Anand _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos