Service Category: Network & Connectivity

The Domain Name System (DNS) is a globally distributed hierarchical directory service. It is used to translate Internet domain names into numeric IP addresses and vice versa.

The service includes the operation of two redundant DNS servers, which are used by client computers at Ulm University for name resolution and can be set via the network configuration of the respective end device. All end devices operated on the campus network of the university automatically receive a DNS entry in the domain uni-ulm.de when registering network access.

The service also includes the registration and hosting of domains outside the uni-ulm.de namespace.

Performance features

Name resolver

  • Operation of two redundant DNS servers with the following IPv4 or IPv6 addresses:
    • Nameserver 1:
      IPv4 Adress:
      IPv6 Adress: 2001:7c0:3100::111
    • Nameserver 2:
      IPv4 Adress:
      IPv6 Adress: 2001:7c0:3100:1::111
    • End devices that are operated on the campus network of the university should have both DNS servers entered in their network settings in the above-mentioned order to ensure proper functioning for IP data traffic (within the local network as well as on the Internet).

Host registration

  • All terminals operated on a fixed network connection (LAN) receive a registration with their host name in the DNS (primary DNS entry).
  • DNS entries of the form [hostname].[subdomain].uni-ulm.de are created. The hostname can be chosen by the user, but it may not yet be assigned and only the characters 'a-z', '0-9' and '-' may be used. The subdomain is assigned by the kiz. New subdomains are also created with the appropriate justification.
  • Additional DNS entries can be set up as aliases for registered hosts.
  • Especially for server services that should not only be visible locally and for which short names are advantageous, entries are also created directly in the domain uni-ulm.de.
  • End devices that obtain their network configuration via DHCP (especially mobile end devices on the WLAN) are registered in the DNS with a host name assigned by the kiz system.

Domain registration

  • Facilities of the University of Ulm can register DNS domains outside the namespace uni-ulm.de. The kiz does this on behalf of the provider BelWü (Landeshochschulnetz Baden-Württemberg).
  • The BelWü only carries out registrations for the following toplevel domains: .DE, .COM, .NET, .ORG, .BIZ, .INFO, .SCHOOL and .EU.
  • Domains for other toplevel domains must be purchased from a commercial hoster without the involvement of the kiz.
  • After successful registration of a domain, DNS entries for hosts in this domain can be requested by the respective institution. As a rule, these are made as references to existing DNS entries in the namespace uni-ulm.de:
    www.meinedomain.de → [hostname].[subdomain].uni-ulm.de

User groups

Facilities of the University of Ulm

Service hours

24 x 7 x 365

Application modalities

No application is required to use the Name Resolver.

The registration of host names is done automatically for the primary DNS entry in connection with the registration of a computer for use on the LAN (see Service LAN: IP Registration). All other DNS entries (aliases) for the host can be requested informally by e-mail from the Helpdesk.

Domain registrations are requested informally by e-mail from the Helpdesk and must be justified. The 2nd Level Support will contact the applicant to discuss the details.

Fee / Charge

There are no fees or charges for the use of the name resolver and host registration.

Domain registration is subject to a fee. The prices set by the provider BelWü apply here. Invoicing is carried out by BelWü.

Communication and Information Centre (kiz)

Please contact us if you have questions or problems related to the kiz services:

Office hours
Monday - Thursday
09:00 h - 12:00 h and 13:00 h - 15:30 h

Friday 09:00 h - 12:00 h

+49 (0) 731 / 50 - 30000

+49 (0) 731 / 50 - 1230000

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