This is a text-only version of the following page on https://raymii.org: --- Title : FreeIPA DNS workaround for DNS zone [...]. already exists in DNS and is handled by server(s): Author : Remy van Elst Date : 10-04-2018 URL : https://raymii.org/s/snippets/FreeIPA_DNS_workaround_for_DNS_zone_already_exists_in_DNS_and_is_handled_by_servers.html Format : Markdown/HTML --- Recently I ran into an issue with FreeIPA when trying to add an existing DNS zone. The zone already exists on the internet so, logically, FreeIPA wouldn't allow me to hijack this domain locally. My usecase is special, so I wanted to forcefully add this zone as a forward zone.

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In the web UI of FreeIPA when trying to add this existing zone, the following error appears: DNS zone example.org. already exists in DNS and is handled by server(s): ns1.kpn.com, ns2.kpn.com This is a logical error since hijacking a domain like this is a bad idea, features like DNSSEC will bite you. My setup however was different. In this setup, domain `sub.example.org` was delegated to this environment, but via some tunneling constructions VPSes in this environment would be able to connect internally to the `example.org` domain. So, I want the FreeIPA system that is also the DNS resolver, to forward queries for `example.org` to the local internal nameserver in the `example.org` domain, and not resolving them externally. FreeIPA wouldn't let me do that via the GUI. Which is IMHO the good option, since you are doing something that normally will break stuff. Using the commandline we can skip this overlap check with the `--skip-overlap-check` flag: ipa dnsforwardzone-add --skip-overlap-check example.org --forwarder=192.0.2.10 --forwarder=198.51.100.10 --forward-policy=only Server will check DNS forwarder(s). This may take some time, please wait ... Zone name: example.org. Active zone: TRUE Zone forwarders: 192.0.2.10, 198.51.100.10 Forward policy: only If you do not want to add a forward zone, you can also use this flag to add a regular zone: ipa dnszone-add --skip-overlap-check example.org --forwarder=192.0.2.10 --forwarder=198.51.100.10 --forward-policy=only [1]: https://www.digitalocean.com/?refcode=7435ae6b8212 --- License: All the text on this website is free as in freedom unless stated otherwise. This means you can use it in any way you want, you can copy it, change it the way you like and republish it, as long as you release the (modified) content under the same license to give others the same freedoms you've got and place my name and a link to this site with the article as source. This site uses Google Analytics for statistics and Google Adwords for advertisements. You are tracked and Google knows everything about you. Use an adblocker like ublock-origin if you don't want it. All the code on this website is licensed under the GNU GPL v3 license unless already licensed under a license which does not allows this form of licensing or if another license is stated on that page / in that software: This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Just to be clear, the information on this website is for meant for educational purposes and you use it at your own risk. I do not take responsibility if you screw something up. Use common sense, do not 'rm -rf /' as root for example. If you have any questions then do not hesitate to contact me. See https://raymii.org/s/static/About.html for details.