DNS issue

[vest]

I am getting this warning and it may be causing my site not available from all location.

"WARNING: Not all of your nameservers are in different subnets"

Different autonomous systems WARNING: Single point of failure"

How do i fix it?

I was earlier using other hosting control panel and didn't face this issue.

I also setup two ns1.domain.com and ns2.domain.com but i still get this error.

[ScIT]

This is a normal error message, when you're dns servers are in the same ip subnet. Maybe setup a external dns server at another provider and setup it using the documentation: http://vestacp.com/docs/#how-to-setup-dns-cluser