[linuxthefish]

Quote:

Originally Posted by Ash. Technically any DNS change has to refresh over the network according to it's TTL (Time-To-Live). I've not known A record changes to take any longer than 15 minutes, and have had them seem 'instant'. You were probably lucky and caught it just as its TTL passed!

If it's cached with your local/isp's DNS then you will have to wait, otherwise the change is instant