Question

DNS Propagation of sub-domains

  • Posted July 3, 2014

Hi all, I created a DNS record for a client domain mydomain.com earlier (about 4 hours ago). The base domain is now public, but all of the sub-domains remain unpingable and unreachable in a browser. OK, it’s early days, but I’m curious as to why the base domain has propagated but the sub-domains haven’t. Here’s my zone file:

$TTL	1800
@		IN	SOA	NS1.DIGITALOCEAN.COM.	hostmaster.mydomain.com. (
			1404417443 ; last update: 2014-07-03 19:57:23 UTC
			3600 ; refresh
			900 ; retry
			1209600 ; expire
			1800 ; ttl
			)
             IN      NS      NS1.DIGITALOCEAN.COM.
                     NS      NS2.DIGITALOCEAN.COM.
                     NS      NS3.DIGITALOCEAN.COM.
@	IN A 	xxx.xxx.xxx.xxx
mail.mydomain.com	IN A 	xxx.xxx.xxx.xxx
webmail.mydomain.com	IN  A	xxx.xxx.xxx.xxx
www.mydomain.com	IN A 	xxx.xxx.xxx.xxx
m.mydomain.com	IN A 	xxx.xxx.xxx.xxx

Am I just being impatient?

Thoughts appreciated Cheers Mark

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Thanks for the response, Larry. All sorted now. My fault. I was using a FQDN without the full-stop for the sub-domains. You should use just the sub-domain without a full-stop OR the FQDN with a full-stop . . . . . . .it says here ;-)

Cheers Mark

Have you tried checking Google’s DNS or another DNS provider? The DNS provider I use at home has occasionally taken a while to get some of its caches updated, requiring me to force an update.