Many people view DNS as
similar to a telephone directory. Whilst names of our
friends and colleagues are easy to remember, telephone
numbers tend not to be. So, we use a telephone directory
to find the number.
Compare this to the Internet - domain names are
our friends' names and IP addresses are like telephone
numbers. When we type in a web address into our browser,
the browser first looks at a DNS server and converts
this into an IP address - something like 194.131.240.110
- not very easy to remember.
Mostly, we don't need to worry about how DNS works
unless you get involved with server hosting. However,
our DNS Management system puts the parts together
for you - hence, yourdomain.com would be a record
added to our DNS with entries for the web and FTP
(www. and ftp.) and email (know as MX records), plus
any other prefixes using a wildcard option. These
would be pointed appropriately to your server IP
address via the record, say 194.131.240.110.
What's more, because DNS is so important, there
must be at least two for each domain name, in case
one fails at any point.
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