Child Name Servers are Name Servers which are
registered with the Registry under your domain name. You have to register Name
servers with the Registry, before you can use them as Name Servers for
registering domain names. Child Name Servers can be registered only by the
owner of the domain name under which they are registered. For example, a Child
Name Server ns2.xyz.com can only be registered by the Owner of xyz.com.
Registering and Managing Child Name Servers
- Login to your Control Panel, search for the domain name and proceed to
the Order Details view. Click
here to read how >>
- Click the Child Name
Servers link. Here, you may:
Add a Child Name Server
Enter the Host Name of the Child Name
Server you wish to add in the Host
Name box, key in its IP
Address (IPv4 or IPv6)
and click on Submit.
Examples
- For yourdomainname.com, you may use the Host
Name as ns1 and an
IPv4 IP Address as
111.222.333.444.
- yourdomainname.biz could have the Host
Name as dns1 and an
IPv6 IP Address as
2001:0db8:0:0:0:0:1428:57ab.
IMPORTANT
- Generally, a domain name can have any number of Child Name
Servers associated with it.
- An IPv6 Address may be entered in either of the following
formats:
2001:0db8:0000:0000:0000:0000:20.40.87.171
2001:0db8:0000:0000:0000:0000:1428:57ab
2001:0db8:0000:0000:0000::1428:57ab
2001:0db8:0:0:0:0:1428:57ab
2001:0db8:0:0::1428:57ab
2001:0db8::1428:57ab
2001:db8::1428:57ab
- IPv6 Addresses are not supported for .WS and .NAME domain
name extensions.
- Registering a Child Name Server as mentioned above is just
the first step. The Child Name Server needs to be registered at
the Registry to only serve as a non-authoritative Record should
your Child Name Server not be resolvable in some extreme
condition.
This Name Server would start working only after you have added
an Address (A) Record for IPv4 or AAAA Record for IPv6 or
Canonical (CNAME) Record for this Name Server within the Zone
for the domain name (of this Child Name Server) at your own DNS
Server, thus binding the NS to the IP Address.
Examples
i. If you are running your own DNS Servers, then you
would need to add a Zone for the domain name
yourdomainname.com and create an A Record like
ns1.yourdomainname.com. 38400 IN A 111.222.333.444
Similarly, you may add an AAAA Record as
ns1.yourdomainname.com. 38400 IN AAAA
2001:0db8:0:0:0:0:1428:57ab
ii. If you wish to simply point your Name Servers to
other Name Servers, then you may do so either way:
- you may either add a CNAME Record to your Service
Provider's Name Server, after buying Managed DNS service
through them -
ns1.yourdomainname.com. 38400 IN CNAME
ns1.serviceprovider.com,
or
- you may add an A/AAAA Record to your Service
Provider's Name Server IP Address (depending upon
whether your Service Provider has an IPv4 or IPv6),
after buying Managed DNS service through them -
ns1.yourdomainname.com. 38400 IN A 777.888.999.000
ns1.yourdomainname.com. 38400 IN AAAA
2001:0db8:0:0:0:0:1428:57ab
- Generally, each Child Name Server can have upto 13 unique IP
Addresses associated with it. For example, you can Registrar a
Child Name Server with the Host Name "ns1" and associate upto 13
unique IP Addresses with this Host Name.
In case of CentralNic (.EU.COM, .GB.COM, .AE.ORG, .KR.COM, .US.COM,
.QC.COM, .DE.COM, .GB.NET, .NO.COM, .HU.COM, .JPN.COM, .UY.COM,
.ZA.COM, .BR.COM, .CN.COM, .SA.COM, .SE.COM, .SE.NET, .UK.COM, .UK.NET
and .RU.COM.) domain names, each Child Name Server can have only
a single unique IP Address associated with it.
- In case of .EU domain names, all Child Name Servers that you
create/add, are automatically associated with that .EU domain
name as a Name Server. Due to this limitation, you will only be
able to add upto 9 Child Name Servers for .EU domain names
(Note: The maximum number of Name Servers that can be associated
with any .EU domain name is 9). If you have already added other
Name Servers (not Child Name Servers of this .EU domain name),
then the number of Child Name Servers that you can create would
reduce by that many. Click
here to know more about Name Servers >>
Example
i. yourdomainname.eu
Child Name Servers created - ns1.yourdomainname.eu and
ns2.yourdomainname.eu
Thus, Name Servers automatically added for this domain name -
ns1.yourdomainname.eu and ns2.yourdomainname.eu
ii. yourotherdomainname.eu
Name Servers used - ns1.hostingprovider.com,
ns2.hostingprovider.com
Child Name Servers created - ns1.yourotherdomainname.eu,
ns2.yourotherdomainname.eu
Thus, Name Servers automatically added for this domain name -
ns1.yourotherdomainname.eu, ns2.yourotherdomainname.eu
So in all 4 Name Servers will be associated with
yourotherdomainname.eu - ns1.hostingprovider.com,
ns2.hostingprovider.com, ns1.yourotherdomainname.eu,
ns2.yourotherdomainname.eu
This means that now for the domain name yourotherdomainname.eu,
you can only add upto 5 other Child Name Servers or Name Servers
since every time you create a Child Name Server, it gets
automatically associated with the .EU domain name as a Name
Server.
Apart from the above, in case of .EU domain names, each Child
Name Server can have upto 9 unique IP Addresses associated with
it. For example, you can Registrar a Child Name Server with the
Host Name "ns1" for yourdomainname.eu and associate upto 9
unique IP Addresses with this Host Name.
- In case of .UK domain names, all Child Name Servers that you
create/add, are automatically associated with that .UK domain
name as a Name Server. Due to this limitation, you will only be
able to add upto 10 Child Name Servers for .UK domain names
(Note: The maximum number of Name Servers that can be associated
with any .UK domain name is 10). If you have already added other
Name Servers (not Child Name Servers of this .UK domain name),
then the number of Child Name Servers that you can create would
reduce by that many. Click
here to know more about Name Servers >>
Example
i. yourdomainname.uk
Child Name Servers created - ns1.yourdomainname.uk and
ns2.yourdomainname.uk
Thus, Name Servers automatically added for this domain name -
ns1.yourdomainname.uk and ns2.yourdomainname.uk
ii. yourotherdomainname.uk
Name Servers used - ns1.hostingprovider.com,
ns2.hostingprovider.com
Child Name Servers created - ns1.yourotherdomainname.uk,
ns2.yourotherdomainname.uk
Thus, Name Servers automatically added for this domain name -
ns1.yourotherdomainname.uk, ns2.yourotherdomainname.uk
So in all 4 Name Servers will be associated with
yourotherdomainname.uk - ns1.hostingprovider.com,
ns2.hostingprovider.com, ns1.yourotherdomainname.uk,
ns2.yourotherdomainname.uk
This means that now for the domain name yourotherdomainname.uk,
you can only add upto 6 other Child Name Servers or Name Servers
since every time you create a Child Name Server, it gets
automatically associated with the .UK domain name as a Name
Server.
Moreover, in case of .UK domain names, each Child Name Server
can have only a single unique IP Address associated with it. For
example, you can Registrar a Child Name Server with the Host
Name "ns1" for yourdomainname.uk and associate only a single
unique IP Address with this Host Name.
- Child Name Servers cannot be created under a .TEL domain
name, due to restrictions placed by the Registry Operator.
Modifying a Child Name Server
- Modifying the Hostname -
Make the modifications in the Host
Name textbox and
click on the Modify Host Name button.
- Modifying the IP Address -
Make the modifications in the IP
Address textbox
and click on the Modify IP Address button.
Deleting a Child Name Server
Click on the Red
Cross button to delete
individual Child Name Servers.
IMPORTANT
You may get an error while Deleting a
Child Name Server if this is being used by another domain name of
the same extension as a Name Server.
For Example,
If the Child Name
Server ns1.yourdomainname.com is being used by xyz.com as its Name
Server, then you will not be able to delete ns1.yourdomainname.com
until xyz.com modifies its Name Server (to some other Name Server).
However, if xyz.info
was using ns1.yourdomainname.com as its Name Server, then you would
not face any issue while deleting your Child Name Server -
ns1.yourdomainname.com.
|