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DNS FAQS


GENERAL QUESTIONS

I already have a domain registered using someone else. Can I still use Nettica for DNS?
What are the names and IP addresses of Nettica's DNS servers?
Can I have more than one domain pointing to the same IP address?
I have the same configuration for all my domains.  Do you have anything that makes it easy to manage this setup?
What is an international domain name. What kind of support do you have?

PRIMARY DNS SERVICE

How do I change my DNS to use Nettica? How long does it take for the change to happen?
How long does it take for a Nettica static DNS entry to change?
How many DNS entries can I have per domain?
Do you support the Sender Policy Framework (SPF) and Sender-ID?
Do you support round-robin DNS entries?
Do you support wildcard DNS entries?
How do I setup URL forwarding? What is the difference between forwarding and masking?
Do you support rebranding your primary DNS service?

SECONDARY DNS SERVICE

How do I setup my DNS to use Nettica as the secondary DNS service?
How do I enable zone transfers to Nettica's DNS servers using Bind?
How can I verify the zone transfer worked?
How can I force a zone reload?
How do I rebrand your secondary DNS service?
Do you have any APIs for programmatically managing secondary DNS zones?

DYNAMIC DNS SERVICE

What is the difference between static and dynamic DNS?
How long does it take for a Nettica dynamic DNS entry to change?
Which dynamic DNS clients support Nettica's DNS Service?
I have a dynamic IP address. Why can't I use your reverse DNS service?

REVERSE DNS SERVICE

Do I have to use your regular DNS service to use your reverse DNS service?
What do I have to do to setup my reverse DNS?


GENERAL QUESTIONS



I already have a domain registered using someone else. Can I still use Nettica for DNS?

Yes. You do not need to register or transfer your domain to Nettica to use our DNS services.

What are the names of Nettica's DNS servers?



NAMESERVER

IP ADDRESS

dns1.nettica.com 64.94.136.11
dns2.nettica.com 64.237.45.34
dns3.nettica.com 64.94.136.13
dns4.nettica.com 69.41.170.223
dns5.nettica.com 212.100.247.15

Can I have more than one domain pointing to the same IP address?

Yes.  However, DNS service is on a per-domain basis, not per IP Address.  If you are interested in hosting multiple domains using the same IP address, we recommend you use a server (Windows Server, Linux, Unix, Apache, etc) that supports multiple virtual hosts.  If you are hosting using something like Windows XP Professional, you can use URL forwarding and masking to support multiple domains on a single IP address.

I have the same configuration for all my domains.  Do you have anything that makes it easy to manage this setup?

Yes, with Bulk DNS services you can setup a template for creating and managing your domains.  After you have created the domains, you can change the template and reapply it to any or all of your domains in one easy step.  Templated DNS management is only available to Bulk DNS customers.

What is an internationalized domain name. What kind of support do you have?

An internationalized domain name allows additional characters in the domain name besides the standard ASCII character set.  For European countries this includes accented characters, while for Asia it provides much of the country specific character set.  International domain names use a special encoding method to identify them to browsers, email clients, and other programs.  Nettica supports international domain names in our DNS services.

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PRIMARY DNS



How do I change my DNS to use Nettica? How long does it take for the change to happen?

Before beginning, it is recommended that you first purchase DNS services from Nettica.  This will ensure a smooth transfer in the Internet's Domain Name System.

If you are using Network Solutions for your domain registration, use the following instructions. If you are using a different registrar, the procedure should be similar.

  1. Goto http://www.networksolutions.com
  2. Log into the Account Manager using your credentials
  3. On the Account Manager Homepage, select the domain you'd like Nettica to provide DNS services.
  4. This will bring you to Domain Details.  Select "Change domain to point to:  A designated Domain Name Server (DNS)" and click on the "Designate DNS" link.
  5. Click continue at the warning assuming you agree to the changes.  This warning happens whether you actually are using their services or not.
  6. You will then be asked to specify servers.  Fill in the fields with the following servers:


    NAMESERVER

    IP ADDRESS

    dns1.nettica.com 64.94.136.11
    dns2.nettica.com 64.237.45.34
    dns3.nettica.com 64.94.136.13
    dns4.nettica.com 69.41.170.223
    dns5.nettica.com 212.100.247.15
  7. Click "Continue".
  8. Click "Save DNS" to save your changes.

The changes will go into effect on your domain immediately.  However, it can take up to 48 hours to update across the Internet.

Note: With .a recent change by Network Solutions, .com and .net DNS registrations will now update in about 15 minutes.  If you have a country-code domain (eg, co.uk, co.jp, etc) the propagation time is determined by your governing authority.

How long does it take for a Nettica static DNS entry to change?

Changes you make using our management interfaces are real-time.  Once you click OK the changes have been made.  However, because DNS is a caching system, it can take up to an hour for caching DNS servers to expire their entries.  If you are about to make a DNS change, we recommend that you not ping the address just before the change, or you may have to wait until the timeout to see the update.

How many DNS entries can I have per domain?

There is no built-in limit to the number of DNS entries per domain with Nettica.  However, if you have more than 100 DNS entries for a single domain we may contact you to help you simplify your DNS setup.  We support wildcard records which greatly simplfies many configurations.  Free service is limited to one hostname.

Do you support the Sender Policy Framework (SPF) and Sender-ID?

Yes. SPF and Sender-ID use DNS Text (TXT) records to define which email servers are permitted to send email on your behalf.  Support for TXT records are included in our primary DNS services.  While SPF is not a cure-all for spam, it does prevent spoofers or virus' from destroying your site's reputation, and is becoming widely adopted by major ISPs around the world.

Do you support round-robin DNS entries?

Yes. To enable round-robin DNS simply create two identical entries that only differ by IP address.

HOST NAME

TYPE

TTL

DATA

yourdomain.com Host (A) Default 172.128.10.101
yourdomain.com Host (A) Default 172.128.10.102
www.yourdomain.com Alias (CNAME) Default yourdomain.com

Typically only A records are used for round-robin.  You cannot specify multiple CNAME records to point to different hosts, but you can have the CNAME point to a set of multiple A records to achieve the same effect (as shown above).

You should only use round-robin DNS if you have static IP addresses. While the Nettica DNS Manager does support round-robin DNS, third party clients may not.  Dynamic update clients are not recommended if you are using round-robin DNS.

Do you support wildcard DNS entries?

Yes. To specify a wildcard DNS entry, create an entry called "*.yourdomain.com" and give it an IP address. Named entries take precedence over wildcard entries.

HOST NAME

TYPE

TTL

DATA

yourdomain.com Host (A) Default 172.128.10.101
*.yourdomain.com Host (A) Default 172.128.10.101

How do I setup URL forwarding? What is the difference between forwarding and masking?

To manage your URL forwarding go to the DNS management page for your domain and click the "New Forward" button.  Enter the subdomain you would like to forward (eg, "webmail.yourdomain.com", etc), and the HTTP URL you would like to forward the request to and click the OK button.

HOST NAME

TYPE

TTL

DATA

EDIT

DELETE

yourdomain.com Host (A) Default 172.128.10.101 Edit Delete
Forward
OK Cancel

The difference between forwarding and masking is that forwarding will do a straight redirect to your site (301 or 302), while masking will place your site inside a frame.  The advantage of masking is that your domain will have a friendly name visible in the address bar.  The disadvantage is that it is difficult for most search engines to index your site using your friendly URL.  The other reason both features are offered is because you cannot mask to an https: URL, those can only be forwarded.  This is because we do not have your site's SSL certificate.

In addition to forwarding, masking, and 301 redirects, you can also specify whether or not to route all requests to the exact URL you specify, or to have us automatically reparse the URL to it's final location (this is the default behavior).  If someone types or clicks on a link to http://www.domain1.com/support and your forward the request to http://www.domain2.com, with reparsing they would end up at http://www.domain2.com/support.  If you click "Redirect to the exact URL", they would simply go to http://www.domain2.com.

Do you support rebranding your primary DNS service?

For step by step instructions for rebranding our primary DNS service, see our knowledge base article on it.

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SECONDARY DNS



How do I setup my DNS to use Nettica as the secondary DNS service?

To setup Nettica as the secondary DNS service provider there are three steps involved:

  1. Add dns2.nettica.com and dns4.nettica.com to this list of Name Servers for your domain.  You do this at your domain registrar.
  2. Next, go to your Primary DNS service provider and add two additional NS records (Name Server records) for dns2.nettica.com and dns4.nettica.com
  3. Finally, you need to configure your secondary DNS service at Nettica by providing us with the name and IP address of your master DNS server (usually the primary DNS server).  This will allow us to accept zone transfer requests from your master DNS server.

How do I enable zone transfers to Nettica's DNS servers using Bind?

Add the following to your /etc/named.conf file:

options {
// allow transfers to Nettica's DNS servers
allow-transfer { 64.237.45.34; 69.41.170.223; };
};

If you are using a tool to manage your named.conf file, use it to make the changes to ensure your changes do not get overwritten.   You only need to change the allow-transfer option; you may leave the others as they are.

How can I verify the zone transfer worked?

Go to a command prompt and issue the following commands:
c:>nslookup - dns2.nettica.com
Default Server: dns2.nettica.com
Address: 64.237.45.34

> set type=all
> yourdomain.com
Server: dns2.nettica.com
Address: 64.237.45.34
...

At this point, your SOA information will come up if the zone transfer worked.  If you receive an error, then it has not yet completed (wait 15 minutes for the initial transfer or a forced reload).

SECONDARY DNS:

2nd-dairy.com

MASTER NAMESERVER

MASTER IP ADDRESS

EDIT

ns1.2nd-dairy.com 172.24.12.6

DNS2.NETTICA.COM

Response: id=0, opcode=0, aa=1, tc=0, ra=0, rcode=no error

Questions
qname=2nd-dairy.com, qtype=255, qclass=1

Answer Records
A: name=2nd-dairy.com, ttl=3600, address=1.2.3.4
NS: name=2nd-dairy.com, ttl=3600, nsdname=ns1.2nd-dairy.com
NS: name=2nd-dairy.com, ttl=3600, nsdname=dns2.nettica.com
NS: name=2nd-dairy.com, ttl=3600, nsdname=dns4.nettica.com
SOA: name=2nd-dairy.com, ttl=3600, mname=ns1.2nd-dairy.com, rname=admin.2nd-dairy.com, serial=8, refresh=172800, retry=86400, expire=1296000, minimum=3600

Additional Records
A: name=dns2.nettica.com, ttl=86400, address=64.237.45.34
A: name=dns4.nettica.com, ttl=86400, address=69.41.170.223

DNS4.NETTICA.COM

Response: id=0, opcode=0, aa=1, tc=0, ra=0, rcode=no error

Questions
qname=2nd-dairy.com, qtype=255, qclass=1

Answer Records
A: name=2nd-dairy.com, ttl=3600, address=1.2.3.4
NS: name=2nd-dairy.com, ttl=3600, nsdname=ns1.2nd-dairy.com
NS: name=2nd-dairy.com, ttl=3600, nsdname=dns2.nettica.com
NS: name=2nd-dairy.com, ttl=3600, nsdname=dns4.nettica.com
SOA: name=2nd-dairy.com, ttl=3600, mname=ns1.2nd-dairy.com, rname=admin.host.local, serial=8, refresh=172800, retry=86400, expire=1296000, minimum=3600

Additional Records
A: name=dns2.nettica.com, ttl=86400, address=64.237.45.34
A: name=dns4.nettica.com, ttl=86400, address=69.41.170.223

CHECK STATUS


FORCE REFRESH


Alternatively, simply go to the secondary DNS management page for the domain and click "CHECK STATUS" as seen above.

How can I force a zone reload?

You can force a reload by going to secondary DNS management page for your domain and clicking on the "FORCE REFRESH" button.  It can take up to 15 minutes for the refresh to complete.

How do I rebrand your secondary DNS service?

To rebrand our secondary DNS service, you go to your domain registrar, and create two new custom nameservers for your domain using the IP addresses of dns2.nettica.com and dns4.nettica.com.  You then use ns2 and ns4.yourdomain.com when adding NS records.  It is the easiest way to customize our DNS service.

Do you have any APIs for programmatically managing secondary DNS zones?

Yes!  We have both a SOAP API, as well as an HTTP API for managing secondary DNS zones.  These APIs allow you to create, delete, and list your secondary DNS zones.  To create a zone using our HTTP API, you simply send a HTTP GET request using WGET or similar program formed as follows:

https://www.nettica.com/DNS/DnsApi.aspx?U=user&PC=passclear& CMD=createsecondary&D=domain&M=master&MIP=ipaddress

These APIs are only available to our Bulk DNS customers.

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DYNAMIC DNS



What is the difference between static and dynamic DNS?

The DNS system is a series of caches that "remember" recently used IP addresses for a given period of time. A static DNS entry usually expires within an hour or two. A dynamic entry will expire much faster, in a matter of minutes. When those entries expire, they must query one of the primary or secondary DNS servers of a domain for the new address. So even though a change may happen immediately, you may not "see it" until the entry expires and is refreshed.  The time it takes for a cache entry to expire is called the time-to-live (TTL).  Dynamic DNS has a short TTL, while static DNS has a longer TTL.

How long does it take for a Nettica dynamic DNS entry to change?

If you add or remove a dynamic DNS entry it may take up to an hour to see the change reflected across the Internet.  However, if you are simply changing the IP address, it will only take 1 minute for to see the change.

Which dynamic DNS clients support Nettica's DNS Service?

The following dynamic DNS clients support Nettica's dynamic DNS service:

DYNAMIC DNS CLIENTS

PLATFORM

Nettica DNS Manager Windows
Nettica DNS Manager for Yahoo Widgets 3.0 OS X and Windows
DirectUpdate 4.0 Windows
DynSite Windows

I have a dynamic IP address. Why can't I use your reverse DNS service?

Reverse DNS services require your ISP to delegate reverse DNS lookups to our DNS servers.  Since your IP address is dynamic and comes out of a pool, they will not delegate that control to our servers.  If you have a static IP range they should not have a problem delegating their reverse DNS.

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REVERSE DNS



Do I have to use your regular DNS service to use your reverse DNS service?

No.  Unlike some other companies, we do not force you to use our forward DNS service to take advantage of our reverse DNS services.  You will, however, find our standard and bulk DNS services competitively priced.

What do I have to do to setup my reverse DNS?

Unlike forward DNS service where you make changes with your domain registrar, you must contact your ISP and request that they delegate reverse DNS for your IP block to our DNS servers. For more information see our tutorial on setting up reverse DNS.

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