Basically, here is my need : Being able to specify an IP address in the DNS Zones of my 60+ domains, and have the ability to redirect this IP to another one (and change it when needed). I'm not the kind of "network guy", so a little help would.. well...help ! ;-)
I need this because I'm managing 2 distinct dedicated servers :
- Server #1 : Production, with public IP #1.
- Server #2 : Emergency, in case of disaster, with public IP #2.
All my domain names DNS zones are pointing to this Server #1 (production) with IP address #1.
When My Server #1 (production) will be down (in case of Disaster), I will need to redirect all the the domain names to the Server #2 (emergency). In this case, my plan is to do the following :
- Manually change the DNS zones of my 60+ domain names, for them to point to the IP #2 of the Server #2 (emergency)
- Wait for the DNS propragation delay
Is there any better way of doing this, allowing me to have my DNS Zones always pointing to an IP, and allowing me to change only single line to have this IP redirect to IP #1, or IP #2 when I need it ? WOuld I need to manage an "external" Windows Server only dedicated to this role ? (that would be costly).. Or odes any online service allows to do this ? (but at the cost of any latency that I must absolutely avoid) ?
Please note that the public IP is used in many of places on the Windows Server : IIS Web Server, Plesk configuration etc.
Additional info : If it can help, my DNS zones are managed by OVH.