Thanks.

This option sounds a lot simpler than first thought. I will keep this in mind. Also, I'm also running a DNS server in house as well, but, if no power at home then there will be no DNS will be resolved.


On 6/10/2011 3:55 PM, Jeroen Geilman wrote:
On 06/10/2011 09:05 PM, Wilson Hernandez wrote:
Thanks for replying.

I actually would like to have the main server locally and the backup server hosted somewhere else with: Amazon, Godaddy, etc...


The cheapest way is to point the hostname to your home IP, and set a very short TTL, say 5 minutes.
Use the minimum your DNS hoster will accept.

Then you can switch to your backup in that time frame by altering the A record.

This is trivially automated by running a cron script on the backup server that checks if your home IP is responding, and if not, switches the DNS record to itself.




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