DNS management question for an idiot

I know the basic DNS stuff, but the advanced stuff leaves gray matter trickling down my ears. I am developing a DNS strategy that provides some fail-over to an alternate site (I don't want everything on one server), and I need your incredible help.

BlueWho.com advertises this service:
Run your domains off your own IP rather than the server IP.On most shared servers all domains run off the main server IP address. This can cause problems with security and DOS attacks, for that reason we do things a bit different. Domains under your account will be run off your second IP, thus shielding you from such attacks.

Since I don't of anyone else doing this, I am wondering if this is effective? And if it is, how do set it up?

The other question I have is setting up some kind of account fail-over using DNS, such as zoneedit.com and easydns.com provide. How do I plan for this, assuming I get 2 IPs for primary name servers, and could possibly sqeeze another out of ARIN for a SSL. Is my attempt to increase security, reduce Dos attackes, and gain some failover using DNS as useless and pathetic as I am?

I am a noobie to advanced DNS stuff, so a detailed response is appreciated.

Thanks,
! Van

PS Mods, if you feel this should be in the security forum, pls move.

 

 

 

 

Top