External DNS

This is an advanced configuration page.

Although your box is configured to serve its own DNS, it is possible to host your DNS elsewhere — such as in the DNS control panel provided by your domain name registrar or virtual cloud provider — by copying the DNS zone information shown in the table below into your external DNS server’s control panel.

If you do so, you are responsible for keeping your DNS entries up to date! If you previously enabled DNSSEC on your domain name by setting a DS record at your registrar, you will likely have to turn it off before changing nameservers.

You may encounter zone file errors when attempting to create a TXT record with a long string. RFC 4408 states a TXT record is allowed to contain multiple strings, and this technique can be used to construct records that would exceed the 255-byte maximum length. You may need to adopt this technique when adding DomainKeys. Use a tool like named-checkzone to validate your zone file.