Can I specify DNS servers for multiple domains. For example there are 3 domains for which I know the DNS server which would resolve the domain name, so can I specify something like
b.com (domain)
u1.x1.y1.z1 (DNS server IP address which would resolve b.com)
l.m.n.o (default DNS server used if above DNS server unavailable)
c.com (domain)
u2.x2.y2.z2 (DNS server IP address which would resolve c.com)
l.m.n.o (default DNS server used if above DNS server unavailable)
d.com (domain)
u3.x3.y3.z3 (DNS server IP address which would resolve d.com)
l.m.n.o (default DNS server used if above DNS server unavailable)
please refer https://github.com/whitekid/dnspost this provide max osx's resolver functionality.