What is a nameserver?
A nameserver (sometimes called a DNS server) is what translates a domain name or computer hostname to an IP address, which is a numeric pointer that identifies a computer on the Internet. Each computer/server etc. has an IP address that looks like four numbers separated by a dot:
Instead of needing to remember all those numbers for your favorite websites, we use the DNS (domain name system) to translate domain names into IP addresses. The Nameserver is the part of the DNS system that translates all that information.
When your computer wants to know how to access www.google.com it sends a query to your ISP's DNS servers. Those servers are responsible for answering your computer's questions. If your ISP's servers don't know the answer then they have a process where they ask the central Nameservers for the Internet, who then point them to Google's Nameservers for the answer. Since Google's Nameservers are authoritative for google.com, www.google.com, gmail.com, etc, your ISP's servers ask Google's servers for the correct IP address and then tell your computer so it can ask the right server for the web page. Your ISP then caches that information so it doesn't have to ask again for a while, in case another computer asks the ISP for that information.
The nameservers that Greenix360 uses for the domains it hosts are:
Check out this great video that explains DNS in simple terms. You can also check out our DNS Explained article.
The nameservers for your shared hosting account are ns3.greenixhosting.com and ns4.greenixhosting.com.
The nameservers for your VPS account (using example.com) are ns1.example.com and ns2.example.com.
You will need to register your nameservers with the registrar where you purchased the domain, if it was not Greenix360.
Point Your Nameserver to Another Host
If you registered your domain name at Greneix360 you can login to the Customer Area (https://portal.greenixhosting.com/clientarea.php) and follow these steps:
Click My Domains
Click the View Details button directly adjacent to the domain in question
Untick the Registrar Lock box so that the domain is temporarily unlocked and click Save
In the nameserver fields, change them to your new host's nameservers
Tick the Registrar Lock box again so that the domain is locked
Save your changes
Note: enter the nameserver in the format of ns1.example.com. You do not need to use the Register a Nameserver function.