Public DNS is basically a service provided by different companies relating to the internet. It is basically a way in which users can get a primary as well as a secondary DNS free of charge. All you have to do is ask!
The special service makes use of UPS protected FreeBSD servers that amply satisfy all the DNS queries. The servers are physically separated from each other but are all connected to the internet through full time dedicated lines.
Who can benefit from Public DNS?
Public DNS may be good for you in a number of situations. In some cases you can’t get a free service from an ISP and you are unwilling to do it your self. Then you can easily turn to the public DNS service. You can also get your secondary DNS servers through this means.
If you need MX records for a virtual domain then you can get that through public DNS. Furthermore users can get more control over their DNS records through public DNS which will give them the freedom to keep changing their DNS regularly as well as the ISPs. If you are locked inside a firewall and need a publicly accessible name server that is outside your firewall then you can make use of public DNS.
Public DNS service providers have had to involve legal counsel in to the operation process due to some problems that it had encountered. The major problems were that of trademark infringements and misbehavior on the part of the registrants of the service.
Hence you are required to carefully read and accept all the stipulations outlined by the indemnification and warranty disclaimer as well as the restrictions and the frequently asked questions. If you cannot accept these terms then you will not be eligible to the service. Therefore it is highly advised for interested individuals to read the terms and conditions prior to registering with public DNS.
The best thing about Public DNS is that it is free. Anyone who registers for the service on behalf of their domain will have his DNS records accepted. Users may have to overcome some hurdles placed in front of them by their ISPs and for profit internet service resellers. Generally though service providers are requested to let their clients avail the free service.
You will not be able to get a .com registration name with public DNS service. For a .com you will need to contact an appropriate registrar. You will definitely have to pay for such a service. The public DNS server however gives the website name’s owner to find the DNS servers that he needs in order to translate it into an IP address.
The public DNS server enables the people and application to easily lookup records in the DNS tables. Although most DNS servers have now become private providing their service only to the people of their organization there are still some that function as Public DNS servers.