Forum Moderators: phranque
Today, I was at an outside computer and I noticed that the old site was visible there... (not cached, since I was able to login to my blog and everything--- an older version of wordpress)
I came home and the new site is up and visible here.
How can 2 computers be seeing both the old and new servers?
Is this a nameserver issue?
what should I do?
If you did shut down the site, something else is going on, and I assure you it *is* being cached, somewhere. Sites don't just bounce around on the wires like some long-delayed echo (look it up - a radio phenomena).
Without more details, it's hard to know what is wrong. But, yes, DNS mis-configurations occur, and you have no control over other's DNS servers. Somebody somewhere ignored your TTL (time-to-live). Really nothing you can do about it.
It can help to "refresh" the DNS record.
How do I refresh the DNS records/?
Depends on your particular DNS provider. Unfortunately, I can't give concrete specific advice, because there are so many different implementations out there.
The most reliable way would be to rev the serial number on the SOA record.
If you don't have the ability to do this, or don't know what I am talking about, it will probably do to simply make any update to the A record. i.e. go in to change it, don't actually change the address, and hit "save".
Hopefully, your DNS provider's software doesn't outsmart itself and realize you didn't actually change anything.
So, perhaps simply change the address in the A record, (say, to 0.0.0.0) and then immediately change it back to what it is supposed to be.