Hosted DNS (Domain Name System):
DNS serves a handful of functions in a network environment but primarily
it is known for translating domain names and IP addresses. Computers communicate
using IP addresses similar in nature to the way the Public Mail System works.
The best analogy is how we address a paper letter / envelope to a numbered home or business
address. Each address is unique because of a combination of number, street, and
zip code used to describe a location in a standard way.
Each IP address combination is unique too and is used to describe or locate a specific
computer or network. Unfortunately us humans have a limited capacity to store strings
of numbers in our brains. We would never be able remember the hundreds of
website addresses we visit everyday if we had to remember them like this (72.14.203.99);
but we can easily remember the URL because they follow a standard, almost always
starting with www. and ending with .com. All we have to do is remember the middle
part and that's easy because the name is catchy like "google".
Why would you want to use hosted DNS?
There are many reasons why someone would outsource DNS and as the technical landscape
changes other reasons will pop up. What we can tell you is the two most popular
reasons are the following:
Local Control without Local Overhead.
A company has public network
resources located both in house and some hosted by another provider. An IT dept
will often want to maintain control over the DNS records to administer them appropriately
across any resource channel, disaster recovery, load balancing or testing scenario.
Bogus DNS.
More & more companies want to restrict access to
the internet. Typically this is done in 1 of 2 ways.
Either you or your hardware / software subscribes to a blacklisting / content management
service or the IT dept manages a blacklist of ever changing IP addresses daily.
There are significant drawbacks to both methods.
Not to mention the difficulty of finding the right balance of ease of use vs. security
for your business.
A manual blacklist is almost always used on the firewall at the public gateway for
the worst offenders like new viruses etc that communicate strictly by IP address.
Subscriptions to content management or blacklisting services is anything BUT foolproof;
providers worldwide waste an unreasonable amount of time properly maintaining these
blacklists and no matter how hard they try there is always something they are not
prepared to deal with like a provider with a new IP address or new version of a
website.
With Bogus DNS you can block or Re-route traffic based on the URL name regardless
of what changes may occur with the known IP addresses or content that has been rated.
A good network generally uses at least
2 of these 3 techniques as part of their traffic management procedures.
FuzeData has developers and technology platform experts on staff
as well as a pool of technical subcontractors
to meet most any implementation /
development / design need. Please contact us to discuss your specific needs.
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