DOMAIN:

domain means the website address.An example of a domain name is www.micfo.com. A domain name is more like a map than anything else. It tells computers where to go to find your site. For example, when your computer tries to go to MICFO.COM the request is send to the internet service provider dns databases.
So when your web browser sends a request to go to www.micfo.com. Your ISP checks their DNS Database and finds that the domain name of www.micfo.com really points to micfo’s web hosting. It then takes your browser to the correct hosted website.

DOMAIN REGISTRATION:
The domain registration can be done through different companies that offer domain registration.

DOMAIN STATUS:
The status of the domain depends upon the setting aplied by the registrar for that particluar domain at his end.The domain normally has the following

status:

Registrar-lock:The domain is registered and it is locked by the current registrar

Active:The active status specifies that the domain is ready for transfer,in order to transfer the domain the status of the domain should be only Active.

Registrar hold:The registrar of the domain sets the domain to this status. The domain can not be modified or deleted when in this status. The registrar MUST remove REGISTRAR-HOLD status to modify the domain. The domain can be renewed

Redemption:The domain goes into redemption period when the domain is not renewed on time and the domain goes into expiry period,at that time if the registrar tries to activate that domain again then there is specific fee that needs to be paid.

TRANSFER A DOMAIN :
To transfer a domain the staus of the domain should be active. The new registrar for the domain should initiate a transfer request for that domain.
The previous registrar for the domain should unlock the domain so that the status becomes active and the domain can be transfered .
The registrar who unlocks the domain should also apporve the transfer request so that transfer is done properly else the domain cannot be transfered.

PRIVATE NAMESERVERS FOR DOMAIN:
While assigning private namservers for any domain you need to first register those private namservers ,for eg:registering the private nameservers through

enom then you need to use domain>>advanced tools>>register namservers.

Once the namservers are registered then you can assign the domain those particular nameservers. The above step is followed if the domain are .com,.org,net but if the domains are .co.uk then you can assign the private nameservers as follows,
ip–nameserver
eg:205.234.198.3–ns1.yourdomainname.co.uk