DNS presentation

DNS - Domain Name System

Domain Name System is that it serves as the "phone book" for the Internet by translating human-friendly computer hostnames into IP addresses.

Internet domain names for example www.example.com are easier to remember than IP addresses such as 208.77.188.166 (IPv4) or 2001:db8:1f70::999:de8:7648:6e8 (IPv6)

DNS also supports wildcard DNS records that will match requests for non-existent domain names. A wildcard DNS record is specified by using a "*" as the left most label (part) of a domain name, e.g. *.example.com.

OpenDNS offers DNS resolution for consumers and businesses as an alternative to using their Internet service provider's DNS servers. By placing company servers in strategic locations and employing a large cache of the domain names, OpenDNS usually processes queries much more quickly, thereby increasing page retrieval speed.

OpenDNS provides the following recursive nameserver addresses for public use, mapped to the nearest operational server location by anycast routing:

208.67.222.222 (resolver1.opendns.com) 208.67.220.220 (resolver2.opendns.com)

Thank you for your attention