FAQ

Last change on 2023-08-07 • Created on 2020-04-01 • ID: DN-B2702

Which recursive name servers (resolvers) should I use in my server configuration?

  • We provide a set of recursive DNS servers for the use on servers that are hosted within our infrastructure, see our documentation at Hetzner recursive name servers.
  • You can set also set up your own resolver if you don't want to use ours. Please note, that you are responsible for its safe and secure operation. We recommend adhering to some basic guidelines.

Which name servers can I use for my domains?

  • You can set up your own name server.
  • If you do not wish to operate your own name server, you can use the DNS Console. For details on managing DNS entries via Robot please see DNS overview.

I can not upate my domain with nameservers NS.HOST.NAME?

Please do not use capital letters for nameserver hostnames.

I have used the slave DNS entry option, but the secondary name server has not accepted the changes

  • You may not have increased the serial number in the zone SOA record.
  • The secondary name server will only accept changes from the primary name server in the refresh interval mentioned in the SOA record.

MX or CNAME record hostnames do not work

It is possible that you forgot to add the period at the end of the zone file entry:

ftp      IN CNAME  ftp.andererserver.de

Here, the host name would resolve to ftp.andererserver.de.*IhreDomain.de*. The following entry is correct:

ftp      IN CNAME  ftp.andererserver.de.

Is www in www.meinedomain.de now a subdomain or a hostname?

If you have not entered a www or www.meinedomain.de NS entry into the zone file for the zone, this is clearly a hostname.

Which software can I use to operate my own DNS server?

The most well-known software for UNIX-based systems is probably BIND (Berkeley Internet Name Domain). Two lesser-known ones are NSD (Name Server Daemon) and djbdns (D. J. Bernstein DNS), for example.

Windows offers integrated Microsoft DNS servers in their server variants for Windows systems, or, at an additional cost, Simple DNS.

There is another alternative which is free-of-charge and and which you can run on current UNIX systems and OS X: PowerDNS. Unlike most other DNS daemons, PowerDNS uses a database system, in order to access the zone. (MySQL, PostgreSQL and Oracle are supported.) Zones are instantly updated without restarting PowerDNS. Supermaster/Slave support makes it easier to administer a large number of zones from another server.

Domain <sub.domain.tld> can not be created (unknown TLD)

Subzones are not supported.

Zone can not be created due to error "Zone already claimed by somebody else"

In this case please check your KonsoleH account. You may have to delete the zone on your KonsoleH account at first in order to recreate it via your DNS Console.

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