Sage-Tips

What is the relationship between IP address and domain name?

Domain Names and IP Addresses The domain name functions as a link to the IP address. Links do not contain actual information, but they do point to the place where the IP address information resides. It is convenient to think of IP addresses as the actual code and the domain name as a nickname for that code.

Can a domain name be registered with two distinct public IP addresses?

Its very common to have two IP addresses for a domain name. In fact there can be more than two IP addresses for a single domain. Having multiple IP addresses increases efficiency, when one of the IP addresses doesn’t work, lookup table in DNS server links the other efficient IP address.

What happens when you register a domain?

When you register a domain, you become the owner, or registrant, for that domain for a set period of time. Now that you are the registrant, you can create an authoritative record that tells the world the nameservers for your domain.

How does DNS work in TCP IP?

SUMMARY. DNS and some other services work on both the protocols. DNS uses TCP for Zone transfer and UDP for name, and queries either regular (primary) or reverse. UDP can be used to exchange small information whereas TCP must be used to exchange information larger than 512 bytes.

Why do we need domain names when we already have IP addresses?

Without DNS, you cannot access any website by typing a URL in your browser. Computers talk to each other using IP addresses. Since humans cannot memorize thousands of strings of numbers, we have to use domain names instead of IP addresses. DNS keeps the record of all domain names and the associated IP addresses.

Why are domain names required What is the relationship between domain names and IP address?

“The goal of domain names is to provide a mechanism for naming resources in such a way that the names are usable in different hosts, networks, protocol families, internets, and administrative organizations.” A domain name is much easier to remember and enter into a terminal or Internet browser, than an IP address.

Can two domains have the same a record?

2 Answers. Yes you can. It is called round-robin DNS, and the browser just chooses one of them randomly.

Why is registering a domain name important?

For your website to have a unique identity, a domain name is essential. Since there are many IP addresses out there, domain names are created to form an identity unique to each website. Without a domain name, your web address will be translated into IP numbers.

How does domain name system work?

The domain name system (DNS) is a naming database in which internet domain names are located and translated into Internet Protocol (IP) addresses. The domain name system maps the name people use to locate a website to the IP address that a computer uses to locate that website.

What happens if a domain name has multiple IP addresses?

If a domain/host uses multiple IP’s, which many bigger ones do, then it’s your DNS servers job to link you with the most efficient IP address at any given time. Its very common to have two IP addresses for a domain name. In fact there can be more than two IP addresses for a single domain.

What is TCP/IP and how does it work?

IP takes care of the communication between computers. It is responsible for addressing, sending and receiving the data packets over the Internet. Web browsers and servers use TCP/IP protocols to connect to the Internet. Common TCP/IP protocols are:

Why can’t the network and host addresses be determined in TCP/IP?

In TCP/IP, the parts of the IP address that are used as the network and host addresses aren’t fixed. Unless you have more information, the network and host addresses above can’t be determined.

What happens if you set a hostname twice in DNS?

If you set a hostname twice in DNS, the server returns each IP in alternating fashion only, but doesn’t consider efficiency of each endpoint. One endpoint could disappear and it would still be sent traffic.