[CentOS] OT: good free DNS tools?
John R Pierce
pierce at hogranch.com
Mon Nov 28 22:36:25 UTC 2011
On 11/28/11 1:58 PM, Alan McKay wrote:
>> man dig
>> > man nslookup
>> > man whois
>> > man traceroute
> Clearly you've never used DNSstuff.com
actually, i have, and its failed to identify issues with stale and lame
NS records that I was able to easily find by hand with the 'hosts'
command which I use instead of dig and nslookup.
the key is to query all the authoritative zone servers as identified via
whois AND as seen via `hosts -t NS domainname dnsserverip` and verify
that all the authoritative servers have the same SOA serial # and NS data.
--
john r pierce N 37, W 122
santa cruz ca mid-left coast
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