DNS Server Behind NAT

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http://serverfault.com – I've got a Bind 9 DNS server sitting behind a NAT firewall, assume the Internet facing IP is There are no restrictions on outgoing traffic, and port 53 (TCP/UDP) is forwarded from to the internal DNS server ( There are no IP Tables rules on either the VPS or the internal Bind 9 server. From a remote Linux VPS located elsewhere on the internet, nslookup works fine # nslookup foo.example.com Server: Address: Name: foo.example.com Addresss: However, when using the host command on the remote VPS, I receive the following (HowTos)