DNS services

Two service options: DNS Resolving and DNS Delegation.

Standard ServicesStandard Services
More information

Basic features

DNS resolving
cesnet.cz– 195.113.144.194, 2001:718:1:1::2
ces.net– 195.113.144.233, 2001:718:1:101::3

Each participant of the CESNET e-infrastructure may use the services of the servers.

DNS delegation

Primary and secondary delegation of zone files – name domains, domains in-addr.arpa and ip6.arpa.

  • No need for dedicated DNS servers in small networks
  • High-quality DNS service provision
  • Secondary zone delegation managed externally
  • Protection against DDoS attacks

The service is available to organizations connected to the CESNET e-infrastructure.

The service is available to all connected organizations, free of any additional charge.

DNS resolving is provided to all users of the CESNET e-infrastructure without any limitations.

DNS delegation is provided in accordance with the following terms of use:

  • The name domain whose delegation is being established on the Association's DNS servers should be operated in accordance with the Terms and conditions for the access to the CESNET Large infrastructure.
  • The domain should be correctly delegated in the superior domain
  • The in-addr.arpa or arpa domains must administratively belong into the autonomous systems of the CESNET2 networks, or must contain IP addresses which are routed in the AS of the CESNET2 network

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