More on DNS....

Internic Records
The Internic is a registering organization for US Domain Names with the .com , .org and .net Domain Names.  Other organizations handle the registration for the US - .edu, .gov , .us  Domain Name - and still other organizations handle International Domain Names.

When you register your domain with Internic, through and accredit registrar, you will reserve that domain name for a specified period of time. This information will be contained in the Internic 'Who Is' Database.

The Internic will maintain a record of your Internet Service Providers' (ISP) - Primary and Secondary Name Servers. These are servers (high powered computers) that run a software application to manage Domain Name Service (DNS).   The Secondary DNS server is needed, in case the Primary is unavailable.

If you have selected an ISP to host your website - and you register your own you will need to provide the name and IP address of both the Primary and Secondary Name servers.

The Internic will maintain a record for your www address and for your mail server (MX and A record).

The Internic records showing which Primary and Secondary DNS servers you have registered are 'pushed' (or rehupped) out to all the DNS Servers on the Internet.  Sometimes propagating these records can take up to 3 days or longer if their is a discrepancy with the record.

Make sure to maintain control of the Administrative Contact email address you used to register the account.  This will be Internics' method of 'validating' any modification requests to your DNS record - and will be how they primarily notify you that the lease is expiring.


ISP Records
When you host your website with an Internet Service Provider they will create your website and assign an IP Address to your website.  The IP Address that is associated with your is placed into a local 'Zone file'.
When a visitor wishes to find your - they type in the address in their browser software.  The request will go to the DNS server that they are using.  Their DNS Server will direct the request to the DNS Servers registered with your domain name.


ISP Name Server
The 'Zone File' will be read telling the request the exact IP Address of your website or webserver.


Web Server
The Web Server will 'serve' up your Web site.

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