Updating dns server
In large corporate networks that use their own internal DNS and DHCP servers a need to keep the DNS servers up to date was required.DDNS (Dynamic DNS updates) was introduced to solve this problem- Wiki The basic procedure is: Home and small business networks don’t use their own DNS servers because they don’t have so many servers/machines,and they don’t really need DDNS either because all their machines are in the same broadcast domain.In this tutorial we will cover the basics of DNS starting with why it was developed, what problems it was designed to solve.All devices (computers etc) that are connected to the Internet, your own network, or company network are identified by an IP address; which is a number.This takes the form of a tree like structure that resembles the file system structure found on computers.See Understanding The Domain Name Structure The DNS system consists of many Domain Name servers that together provide the name to IP address mapping for registered devices (usually servers) on the Internet.
The DNS system provides a domain name to IP address mapping for devices connected to the Internet, and it is crucial to the working of the Internet.
This enabled people to refer to other computers by the name, and their computer translated that name to an IP address when it needed to communicate with it. It comes with all Windows machines The location for the hosts file is normally C\windows\system32\drivers\etc As network sizes increased the hosts file approach became impractical due to the fact that: The hosts file is simply a list of names and IP addresses with no structure making it difficult to scale to a large number of machines.
The solution is to place the machines into administrative areas known as domains, and arrange the domains in a hierarchy.
DNS (Domain Name System) is one of the most important technologies/services on the internet, as without it the Internet would be very difficult to use.
DNS provides a name to number (IP address) mapping or translation, allowing internet users to use, easy to remember names, and not numbers to access resources on a network and the Internet.
See DNS Zones and Zone Files Explained To resolve a host name to an IP address using DNS you will need to have s DNS client on your machine, and the client must know the IP address of a DNS server.