Name System (DNS)
Web-based DNS & Domain Name Registration
The Domain Name System provides
the mechanism for translating Internet domain and host names for network-attached
devices into numeric Transmission Control Protocol/Internet Protocol (TCP/IP)
addresses. The Domain Name System makes using TCP/IP-based applications
much more user-friendly by enabling users to specify network services by
name rather than number.
The DNS also provides infrastructure
for distributing the database of address-to-name mapping. The mapping database
is distributed in a hierarchical fashion throughout the Internet so that
an organization can maintain its own portion of the global database while
still having access to all other names. For further information see
"DOMAIN NAMES - CONCEPTS AND FACILITIES"
"DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION"
Internet Name Services for NC Public Agencies
ITS maintains the primary
DNS server for state agencies and other organizations that get their Internet
access from ITS. ITS coordinates with the North
Carolina Education and Research Network (NCREN) to provide secondary
(backup) servers for all ITS network clients. Any agency may choose to
operate its own DNS server and "take over" a portion of the name database.
ITS will support the initial
setup and configuration of client-site DNS servers as well as provide a
secondary DNS server. ITS recommends that clients familiarize themselves
with the operation of DNS before considering this approach.
ITS has been delegated certain
subdomains within the .US domain name space for public entities within
North Carolina. As an example of a .US subdomain, RFC1480
names state government agencies as *.state.nc.us. (e.g., NC Department
of Transportation is dot.state.nc.us). Other types of subdomains exist
for a variety of entities, including, but not limited to, the following:
*.k12.nc.us for elementary and secondary schools; *.cc.nc.us for community
colleges; and, *.lib.nc.us for libraries.
In addition to .US domain
names, ITS also provides name service to public entities using domain names
ending in .com, .org, .net, .info and .biz.
ITS recommends that you register
each network device in the DNS database. Although in most cases it is not
required in order for TCP/IP-based applications to work, many Internet
information providers now verify that any computer that connects to their
service exists in the global DNS database before allowing a connection.
Many other providers (including ITS) use the name of connecting systems
when collecting statistical information. This technique will ensure that
destination addresses are names instead of numbers, a practice which allows
for greater flexibility during network changes and agency moves. Finally,
registration of all attached devices in the DNS database is the recommended
method of tracking which TCP/IP addresses are in use to avoid address duplication.
When registering a hostname
in the DNS database, provide ITS with each host TCP/IP numeric address
and its associated hostname (must be unique within a domain). If a hostname
has aliases, specify the primary name and which names are aliases.
Use our Web-based DNS
& Domain Name Registration Form to register a hostname, IP address,
mail exchanger, or range of hostnames and IP addresses in our DNS database.
ns2.state.nc.us - 126.96.36.199
(alias to ns.sips.state.nc.us)
Although we try to work requests
the day they are received, registration should be completed within two
working days. This window may be occasionally exceeded when the volume
of requests increases.
E-mail only technical assistance
questions to: Hostmaster@ncmail.net.
Hostmaster receives a large number of inquiries; therefore, domain registration
should be done through the Web form.
Problems should be
reported to the Customer Support Center. Telephone 919-754-6000 or 800-722-3946.
Fax only if necessary to:
Hostmaster@ncmail.net (919) 850-2854. (Allow extra time for service when
U.S. Postal Service mail (allowing
extra time for service) to:
4115 Mail Service Center
Raleigh, NC 27699-4115
Name Registration and Modifications
If you wish to register a
new domain name through ITS, or modify a registered domain name for which
ITS is either named as the technical contact and/or provides name service
to, send your request according to the instructions below.
We prefer that agency's use
ITS for secondary name service and that they use their own or their ISP's
(Internet Service Provider) DNS for primary service. In certain situations
ITS will provide both primary and secondary name service.
For .US Domain names,
submit requests using the domain registration option on our Web-based
DNS & Domain Name Registration Form.
For .ORG, .COM, .NET, .INFO
and .BIZ names, submit requests using the domain registration option
on our Web-based DNS & Domain Name Registration
Form. You will be billed directly by Network Solutions for your
domain name registration. You may register your name for between two and
ten years. Costs for registering these domain names as of December 16, 2002
are $17/year for .org, .com and .net extensions, and $10/year for .info
and .biz. Prices are subject to change without notice.
For delegation of other
domains, including in-addr domains, submit requests via e-mail to email@example.com.
Domain name requests are usually
completed with 24 hours but can sometimes take longer depending upon the
workload of the registrar.
If you elect to register or
modify a domain name through anyone other than ITS, and you are already
receiving or intend to receive name service through ITS, please assign
ITS as the technical contact. Our NIC Handle is HOS733-ORG. Also, we ask
that you perform a traceroute
to both of our secondary name servers (see below) and note their relative
performance. Typically you can specify more than one secondary name server
for your domain name. We ask that you specify the faster name server first
on the registrar's domain name registration form and the slower one second.
System Configuration Information
In order to use the DNS, each computer system must know what domain
it belongs in and the primary and secondary DNS servers for that domain.
This information is typically stored in a file called resolv.cfg on DOS/Windows
systems and resolv.conf on UNIX systems. A typical configuration looks
like the following:
The domain name shown above must
be modified to reflect the local domain name. A local LAN administrator
will provide this information. ITS has both primary and secondary name
servers. NCREN provides additional secondary
name service for ITS clients. Our name server and technical contact information
is as follows:
Secondary Name Server(s)
Contact "NIC Handle"
If your agency is running
DNS for its domain, use your local DNS server as the primary server (first
in the config file), and configure the ITS and NCREN nameservers as secondary
This way to our Web-based DNS & Domain Name Registration form.
information e-mail ITS.Incidents@ncmail.net
or call our Service Desk at 919-754-6000 or 800-722-3946.
This page was last updated June 23, 2005.