Hi, I should mention that my server is behind the router and running in vitural machine. My machine IP: 192.168.1.21(internal IP) My external IP: 18.104.22.168(example) Domain: abc.com DNS server: ns1.abc.com, ns2.abc.com After I used the internal IP for installation, what is the following steps to set up my external IP to my machine that outside people can visit my websites? Is it directly setup the ns records in the DNS setting page in control panel? I would like to use ns1.abc.com and ns2.abc.com in local bind server to resolve my domain(abc.com). Any solution? Thanks.