I'm interesting how to do :
I have 2 hosts in different location, and I need to make my website and my emails to works 100%
so if the host 1 is down the host 2 will work , I know that I can add to the domain name 4 DNS
Primary DNS for the host 1
Secondary DNS for the host 2
And I can add another 3 and 4 different DNS hosts that to make sure that my website will never stop.
my question how to configure this ? and what about the email ?
should I create firstname.lastname@example.org in each host ? or how that will work in case I need my emails to work 100% in case host 1 is down ?