Sorry for the top reply, but this is more an overview about all messages

than a direct answer. Everything here assumes you are using FreeIPA's

integrated DNS.

First, it was suggested that split view DNS is used. Don't do that, as it

is not supported by FreeIPA. Use it only if you manage your own external

DNS, without using FreeIPA to manage entries.

Regarding forwarding DNS queries, the easiest way is to set a global

forwarder. In my home lab I use public ones, like Google and Cloudflare,

and I'm not much concerned about external traffic, so I leave the default

configuration, "forward first", enabled.

You can find more information about the available options here:

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/working_with_dns_in_identity_management/managing-global-dns-configuration-in-idm-using-ansible-playbooks_working-with-vaults-in-idm#dns-forward-policies-in-idm_managing-global-dns-configuration-in-idm-using-ansible-playbooks

A lot more about working with DNS can be found

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/working_with_dns_in_identity_management/index

Regards,

Rafael

On Mon, Dec 27, 2021 at 1:40 AM Dave Mintz via FreeIPA-users <freeipa-users@lists.fedorahosted.org> wrote:

Hi Peter,

Thank you so much!
Could you please elaborate on how to configure the FreeIPA DNS server to forward only non-local-domain queries?

In the DNS Global Configuration there is the Forward policy
Forward first
Forward only
Forwarding disabled

Which one should be used to do what you say below?
Do I need to set a Global forwarder?

Best,
Dave

> On Dec 26, 2021, at 10:00 PM, Peter Larsen via FreeIPA-users <freeipa-users@lists.fedorahosted.org> wrote:
>
> On Sun, 2021-12-26 at 14:16 -0500, Dave Mintz via FreeIPA-users wrote:
>> Hello,
>> I have been trying to set up FreeIPA on an internal CentOS 8 server.
>> I was successful in getting it running, I set up DNS for internal
>> queries. It worked. However, when I tried to set up SSL certs I ran
>> into issue.
>>
>> My question is this:
>> I own a legitimate domain.
>> It is not “hosted”.
>> I have no intention of exposing any of my internal servers to the
>> Internet.
>> How do I go about configuring the DNS at my registrar so that when I
>> configure my internal servers, including FreeIPA, DNS, SSL, email,
>> etc., any requests that go out to the Internet will resolve
>> correctly?
>>
>> Any help or pointers to documentation would be greatly appreciated.
>
> I have freeIPA with DNS over several replication instances running. The
> domains are like yours mostly internal and not to resolve externally.
> Without a lot of boring details, you do not need to register your TLD
> if you just use the domain internally. As long as the resolver your
> internal hosts point to is your authoritative DNS server that FreeIPA
> manages, the clients will get responses as they need.
>
> This requires your server not to just blindly forward all DNS
> externally. I have forward turned off on my domains. This means when a
> client requests a public DNS address, the bind server managed by
> FreeIPA will do a NS lookup to see where the request needs to be sent.
> It's not 1.1.1.1 or similar services doing that. Works great for a
> small network where your domain is 100% internal.
>
> You can have an external NS too and they can provide very different
> answers. Perhaps you just want MX to resolve externally but an ocean of
> internal addresses should not. If someone outside your network tries to
> resolve an address, they will hit the external resolver (not managed by
> FreeIPA!) and only resolve what it knows about.
>
>
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