If you registered your domain name through Asia Pacific IT or one of our
Full Service resellers, you can access this free service through your Account
Manager under "Additional Services." A detailed DNS Help Menu
is available in the Account Manager.
The DNS customization tool enables customers
with advanced technical domain knowledge to make
and manage unlimited changes to a Domain Name
Zone File. Be aware that your name servers must
be pointing to Asia Pacific IT's name servers in
order to use this service.
What You Can Do
The Domain Name Zone File is a text file stored
on a name server that contains all the information
pertaining to a domain. The Customizable DNS service
allows you to specify the following zone file
additions and modifications:
- A records
- CNAME records
- MX records
- Sub domains
- TTL of each record
- Special host entries (No-host and Catch-all)
These records are the basis of the zone. They are
used to set an IP address to correspond with a web
host. The purpose of this is to set where the host
will be "redirected", such as setting the "your-domain.com"
host to point to the IP of the web server where
the files are stored. They are also used with MX
records to set up a host, "mail.your-domain.com,"
that points to the IP address of the mail server
that will be accepting e-mail related to this domain.
Creates an alias of a host name. The alias gains
all properties of the original, including IP addresses
and mail routes. An example of a CNAME record
would be "www.your-domain.com," which would point
MX Records set the location of the server that
all electronic mail will be sent to. A domain
name can have multiple mail routes, each one with
its own entry, and each given a numerical priority.
The lower the number, the higher the priority.
If one fails, the request goes to the next in
the list. MX records can only point to a host,
never an IP.
A sub domain, such as "whatever.your-domain.com"
is set to an IP, using an A record, or a host,
using a CNAME record. Two examples that almost
all domains have set up are "www.your-domain.com"
(typically, this is set up, and the "your-domain.com"
record is not) and "mail.your-domain.com".
TTL OF EACH RECORD
Time To Live (TTL) refers to the number of seconds
remaining on a cached record before it is purged.
The act of caching involves recording the response
of DNS record queries to increase speed of delivery
for future reference.
SPECIAL HOST ENTRIES (No-host and Catch-all)
The No-Host option enables requests for specific
sub domains to be forwarded to a specific page.
For example, "ftp.your-domain.com" can be set
to forward to a page that explains that this service
is not supported. The Catch-all option forwards
any non-existing hostname to a specific location.