Info + Support
+49 231
9703-222
Control panel login
Select Language
Go

Domain jargon plainly explained

On this page you find explanations for numerous terms that are used in connection with ironDNS®.


Anycast
A service operates on several servers all over the world. However, all servers have the same Internet address.

AXFR / IXFR
Asynchronous and Incremental Transfer Zone, respectively: Transfers zone content from the master to the slaves.

BIND
Very good name server software, managed as open source by ISC.

ccTLD
Country Code Top-Level-Domain: A TLD consisting of two letters and administered on country level. Typical examples are “.de” for Germany or “.uk” for the United Kingdom.

DDoS
Distributed Denial of Service: A distributed attack on a technical resource from many places on the Internet. See also DoS.

DNS
Domain Name System.

DNSSEC
DNS Secure Extensions: Answers from DNS servers contain not only the actual data but also cryptographic signatures.

DoS
Denial of Service: An attack on a technical resource based on overloading a service.

IANA
Internet Assigned Numbers Authority: The organisation taking care of the global coordination of the root zone of the DNS.

ICANN
Internet Corporation for Assigned Names and Numbers: The US-based organisation responsible for domain names and IP addresses all over the world.

IETF
Internet Engineering Task Force: An organisation dealing with the technical advancement of the Internet. Results often take the form of RFCs.

ISC
Internet System Consortium: The consortium developing and maintaining the name server software BIND.

ngTLD
new generic Top-Level-Domain: A TLD which is relatively new, that is introduced after the year 2000.

NSEC3
New DNSSEC standard preventing attackers from gaining information about the structure of the zone, and thus from spying on the contents of a zone.

Registrant
The owner of a domain name.

Registrar
A reseller for domains, registering domain names on behalf of the registrants. The registrar has access to the data base of a registry.

Registry
The administrator of a top level domain. For “.de” this is DENIC, for example, for “.com” it is VeriSign.

RFC
Request for Comments: A request to comment on a technical proposal. Is often considered a quasi-standard later on.

SLD
Second-Level-Domain: A domain name having only a dot and a TLD on the right. Example: In “mycompany.com”, “mycompany” is the SLD. See also TLD.

SOAP
Simple Object Access Protocol: A technical standard used by computer systems to exchange commands and data.

Tier-1
In the context of Internet providers, this term refers to those that only sell Internet connectivity and do not rely on other providers.

TLD
Top Level Domain: A domain name having no further elements on the right. Example: in “mycompany.com”, “com” is the TLD. See also SLD.

Unicast
Opposite of anycast. A server on the Internet is given a unique Internet address that is not used by any other server in the world.

Further interesting information around ironDNS®