Domain Name System (DNS) is a hierarchical naming system that maps domain names to IP addresses. DNS maintains the domain namespace and provides translation between domain names and IP addresses using DNS name servers and a communication protocol. DNS refers to the data query service, system of mapping names to IP addresses hierarchically, and DNS servers that translate host names to IP addresses. Before DNS was invented, host name to IP address mappings were stored in a file. DNS was developed in the 1980s and the dominant DNS software, BIND, was introduced. Security vulnerabilities include cache poisoning, client flooding, and dynamic update vulnerabilities. Efforts are made to improve DNS security.
Learn about the essentials of the Domain Name System (DNS), including name resolution, different record types, roots, zones, authority and recursion.
See the full webinar and the rest of the series at https://www.thousandeyes.com/resources/intro-to-dns-webinar
Learn about the essentials of the Domain Name System (DNS), including name resolution, different record types, roots, zones, authority and recursion.
See the full webinar and the rest of the series at https://www.thousandeyes.com/resources/intro-to-dns-webinar
A complete Coverage of DNS and its features. This ppt deals with well balanced practical and theoretical aspects of DNS. The best ppt for a novice learner.
Overview of the Domain Name System (DNS).
In the early days of the Internet, hosts had a fixed IP address.
Reaching a host required to know its numeric IP address.
With the growing number of hosts this scheme became quickly awkward and difficult to use.
DNS was introduced to give hosts human readable names that would be translated into a numeric IP addresses on the fly when a requesting host tried to reach another host.
To facilitate a distributed administration of the domain names, a hierarchic scheme was introduced where responsibility to manage domain names is delegated to organizations which can further delegate management of sub-domains.
Due to its importance in the operation of the Internet, domain name servers are usually operated redundantly. The databases of both servers are periodically synchronized.
This slide contains details about domain name servers (DNS).
It also contains Resolution of the Name Servers with Domain Name Structure with statistics table. The process of Name resolution is also explained with Recursive and iterative resolution processes.
A complete Coverage of DNS and its features. This ppt deals with well balanced practical and theoretical aspects of DNS. The best ppt for a novice learner.
Overview of the Domain Name System (DNS).
In the early days of the Internet, hosts had a fixed IP address.
Reaching a host required to know its numeric IP address.
With the growing number of hosts this scheme became quickly awkward and difficult to use.
DNS was introduced to give hosts human readable names that would be translated into a numeric IP addresses on the fly when a requesting host tried to reach another host.
To facilitate a distributed administration of the domain names, a hierarchic scheme was introduced where responsibility to manage domain names is delegated to organizations which can further delegate management of sub-domains.
Due to its importance in the operation of the Internet, domain name servers are usually operated redundantly. The databases of both servers are periodically synchronized.
This slide contains details about domain name servers (DNS).
It also contains Resolution of the Name Servers with Domain Name Structure with statistics table. The process of Name resolution is also explained with Recursive and iterative resolution processes.
This ppt explains the DNS
in an easy way with the help of examples using the cisco packet tracer. This creates an easy understanding of the DNS server, it's working, and its usage.
As part of continuous Professional Development for Information Technology team, Mobile88 are now organising weekly talks on specially selected IT topics. It is a great IT knowledge exchange and information sharing session for all. You are welcome to join us every Thursday. It is currently available at Malaysia and Indonesia.
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