A WhoIs lookup identifies the administrator contact information, billing contact and the technical contact for each domain name listing or IP in the WhoIs database. A WhoIs IP search can also help you potentially determine the source of spam and other details related to a website. In addition to looking up a domain by IP, Whois lookup can also

The Domain Name System, otherwise known as DNS, is a key component of the Internet. To clarify, DNS is the resolution of a domain name to an IP address. Moreover, for those of you who are not aware of how it works read on to learn the basics. The forward lookup, or simple DNS lookup, is the most Domain to IP address lookup tool allows you to resolve any domain, subdomain name or a host name to an IP that is assigned at the time of the query. Both IPv4 and IPv6 addresses can be obtained using this tool. A dynamic DNS service is a constantly updated database of IP addresses and domain names. DynDNS.com is one provider of this service. For free, you can get one of the available DynDNS domain names The following article explains how to point a domain name to a new IP address. The IP address can be provided by the web hosting provider. Use caution when pointing a domain name to a new IP address, since pointing it to the wrong IP address will disable the website. To point your domain name to a new IP address, please follow these steps: In theory, you should be able to call Dns.GetHostEntry and pass the IP address. I tried that passing "www.google.com" and got a particular IP address but when I tried again with that IP address I got a different host name and no aliases, so I'm not sure that there is a simple way using managed code. To point the domain to our VPS, we need to change the “A” record in the zone file editor. Basically, the settings are: Host Record Name: @, or the domain name itself; Record Type: A; Points to: 206.189.233.82 (or your VPS IP) You probably already have a record in your zone file editor pointing the domain to some other IP address like this:

A dynamic DNS service is a constantly updated database of IP addresses and domain names. DynDNS.com is one provider of this service. For free, you can get one of the available DynDNS domain names

Domain name basics - G Suite Admin Help

An A (host) record connects your domain name to your IP address. A records let users enter your domain name in a Web browser to access your website. They are the most common type of zone record. Follow the directions to access the DNS Manager. Click Add Record. From the Record type list, select A (Host).

An A (host) record connects your domain name to your IP address. A records let users enter your domain name in a Web browser to access your website. They are the most common type of zone record. Follow the directions to access the DNS Manager. Click Add Record. From the Record type list, select A (Host). An IP address is a unique numeric label used to identify computers in a Domain Name System (DNS) network. It consists of 4 groups of numbers, each between 0 and 255, separated by periods. They are the numeric counterpart to domain names and are converted by computers to locate resources associated with domain names on the internet. Every IP address or subnet can host several domains (websites). Use the Reverse IP tool to find domains sharing the same IP address or subnet. It shows a maximum of 2,500 domains per IP address (depending on your membership type). For subnets it shows a maximum of 255 IP addresses. Just type a domain name, IP address or subnet and click the Go In this case, the canonical domain name is the [myapp].cloudapp.net domain name of your Azure hosted application. Once created, the CNAME creates an alias for the [myapp].cloudapp.net . The CNAME entry will resolve to the IP address of your [myapp].cloudapp.net service automatically, so if the IP address of the cloud service changes, you do not You just learned that the primary job of a domain name server, or DNS server, is to resolve (translate) a domain name into an IP address. That sounds like a simple task, and it would be, except for the following points: