This article applies to .DE domain names.
In order to change the nameservers on your .DE domain name the new nameservers must meet the following requirements:
- You must have two authoritative nameservers
- You can verify if your nameservers are authoritative by visiting http://www.denic.de/en/background/nast.html and entering the domain name and its nameservers to receive a reply.
- If the answer at ZoneCheck lists a non-authoritative answer at the top of the nameserver list, your nameservers are not authoritative.
- The nameservers in the domain name's zone file must match the nameservers you are trying to use, or your nameservers are considered non-authoritative.
- Each nameserver must be on a separate class-C network.
- The first three octets cannot be the same. For example, 220.127.116.11 and 18.104.22.168 are valid. 22.214.171.124 and 126.96.36.199 are not valid.
- You must have a Start of Authority (SOA) refresh value between 10000 and 86400 seconds.
- You must have a retry value between 1800 and 28800 seconds.
- You must have a Time to Live (TTL) value between 180 and 345600.
- You must specify a Mail Exchanger (MX) record that resolves to a valid mail server for the life of the domain name registration, not just for the registration itself
- Serial numbers for all nameserver zones for the domain name must match.
Once you have configured your new nameservers you can follow the instructions on changing the nameservers on your domain name.
Important: This command causes a DNS check on the domain. If this check fails, your domain will be deleted (without a refund) four weeks after it was registered. It is important to rerun this command or configure the DNS by other means in order to keep the domain. You can run a DNS check by visiting http://www.denic.de/en/background/nast.html