Hello, On 10 juin 2011, at 21:05, Wilson Hernandez wrote:
> I actually would like to have the main server locally and the backup server > hosted somewhere else with: Amazon, Godaddy, etc... Having the main server running at the less reliable location is not what I would do, but I can understand how a local server with full physical control (and huge storage) is easier to run than a remote VPS with limited resources and access. On 10 juin 2011, at 21:55, Jeroen Geilman wrote: > 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. I don't think this is trivially automated. There are lots of pitfalls (reliability of the test, accessing DNS records...) that makes this kind of script more tricky than you would think. Wilson: you should really consider externalizing your master DNS. Running a local secondary DNS is fine, but your primary should be remote (on your backup server for example). Patrick PRONIEWSKI -- Administrateur Système - DSI - Université Lumière Lyon 2
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