Your Domain is the name you are known by on the Internet, but it's
not what the computers use. Computers use a binary number to address
the computer on which your web pages are stored or e-mail box is saved.
The service which translates the human friendly name into the binary
number is called DNS.
DNS is designed to keep going when something goes wrong. The rules say
you must have at least 2 machines doing the translations for a domain.
These machines should be well away from each other,
to protect you against any single failure, like a hub going down, a
power cut or a communications cable being dug up.
If your service provider has DNS servers which are on the same lan
they are breaking the rules, and putting your service at risk.
You can check this out from unix or Windows NT by using the program
nslookup which runs in a terminal window
Default Server: localhost|
> set type=ns
an-isp.net nameserver = ns1.an-isp.net
an-isp.net nameserver = ns0.an-isp.net
Authoritative answers can be found from:
ns1.an-isp.net internet address = 188.8.131.52
ns0.an-isp.net internet address = 184.108.40.206
In this, unfortunately common, example the IP addresses of
the name servers only differ in the right-hand (least
significant) group --- these servers are on the same lan, which should
make one cautious about using an-isp.net for DNS service.
For any domain the DNS servers should be:
- On different Computers
- On different Networks
- Powered from different Electricity Supply companies
- Use different routes to the major network switching centres (NAPS)
OA5's service is based on our server in Britain, and our partner's
server in Stockholm. This geographic spread means that the service
we deliver for our customers fully meets all the requirements.
DNS from OA5 is done right
There ain't no such thing as a free lunch. Some very low cost
domain registrations are simply attempts to lock you in. When you check,
the domain is registered to the company offering the service, and nowhere
is there any indication that it was registered for you.
Some of our clients had to get new domains because their first
domain was registered by a now defunct ISP.
OA5 makes a point of ensuring that the registration shows you as the
owner of the domain. We subscribe to the ISPA-UK code of
of conduct and will transfer administration of your domain promptly
on your request, provided you have paid the registration fees.