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Why are there multiple IP addresses associated with a single domain name?

Why are there multiple IP addresses associated with a single domain name (e.g. and )? The configuration in each network assigns different DNS servers for IP address lookup, which can lead to different IP addresses for one site. The main reason for this is to decrease congestion in the network 10.

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Likewise, people ask, can a domain name have multiple IP addresses?

Yes, that is possible, and will need to be two A records. This is called Round-Robin DNS. Clients will semi-randomly use one of the two addresses. The certificate is not tied to the IP address, only to the domain name,so if it is installed on both servers, there should be no issues with SSL.

Also, why are there multiple IP addresses? Using different IP addresses segmented based on particular mail streams is another legitimate reason for using multiple IP addresses. Since each IP address maintains its own deliverability reputation, segmenting each mail stream by IP address keeps the reputation of each mail stream separate.

In respect to this, why would a website have multiple IP addresses?

If you have multiple IP networks on the same physical/logical network/vlan it will prevent traffic from being exchanged via the gateway, speeding things up and reducing the load. In order to setup a device that has a default IP address and thus you need to add an address on the same network.

Can 2 domain names point to the same IP address?

7 Answers. Yes, this is an extremely common practice. It is called a Shared Web Hosting: When you register/purchase your domain name on a particular "registrars name server", your DNS settings are kept on their server, and in most cases point your domain to the Name Server of your hosting provider.

Related Question Answers

Can a machine with a single DNS name have multiple addresses?

Dear Kul, To answer your question in short, yes it can happen. DNS, the Domain Name Service, as you would know, is used to help us resolve Fully Qualified Domain Names (FQDN) to IP addresses. This is what gives a DNS name multiple IP addresses.

How many a records can a domain have?

People have pointed out that one name/label can have multiple "A" records. The DNS protocol itself using a (signed) 16-bit integer as a count of resource records returned for a query, so for a single query, there's a limit of 65535 "A" records (less a SOA record for overhead) for a single name.

Can a website have more than one address?

They can have different IP addresses, yes. And most of the big ones do. Google, Facebook, all them have multiple servers, each one with its own IP address. It's actually going to an IP address, but DNS serves allow you to use words and letters to remember site names instead of a bunch of combinations of numbers.

Can multiple A records point to the same IP?

You can do a lot with A records, including using multiple A records for the same domain in order to provide redundancy. Additionally, multiple names could point to the same address, in which case each would have its own A record pointing to that same IP address. The DNS A record is specified by RFC 1035.

Can you have two IP addresses?

Although it is not at all recommended to assign multiple IP addresses on a computer until there are multiple network interface cards or NICs installed in it, you can still do so. The reason why it is not recommended to have multiple IP addresses on a single network adapter is to avoid the bottlenecks.

What are multiple domains?

Multiple domains are add-on domains hosted on the sub-directory of a primary package. Each domain has its own web files, but share the disk space, database and traffic quotas of its parent account.

How many IP addresses does Google have?

200,000 IP addresses

How do I use multiple IP addresses?

How to assign multiple IP addresses to the same NIC
  1. Choose Settings -> Network Connections on the Windows Start menu.
  2. Right-click on the Local Area Connection, choose Properties.
  3. Highlight Internet Protocol (TCP/IP), click Properties.

Can a server have more than one IP address?

A single physical network card definitely can have multiple IP addresses. This is almost essential when implementing server virtualization: with multiple virtual servers running on the same physical hardware, each needs its own IP address. Yes you can have more than one IP address when using a single Network Card.

What is the IP address 127.0 0.1 used for?

127.0. 0.1 is the loopback Internet protocol (IP) address also referred to as the localhost. The address is used to establish an IP connection to the same machine or computer being used by the end-user. The same convention is defined for computers that support IPv6 addressing using the connotation of ::1.

How do you find the IP address of a server?

Tap on the gear icon to the right of the wireless network you're connected to, and then tap on Advanced toward the bottom of the next screen. Scroll down a bit, and you'll see your device's IPv4 address.

How many IP addresses can I have?

IPv4 uses 32-bit IP address, and with 32 bits the maximum number of IP addresses is 232—or 4,294,967,296. This provides a little more than four billion IPv4 addresses (in theory). The number of IPv4 available addresses is actually less than the theoretical maximum number.

Why do I have 3 IP addresses on my phone?

Network Address Translation and routers handle all this, so the data gets to the right place. Your IP address changes a lot, depending on the device and network config. Even in a single day a device could have at least three IP addresses, if it loses connection regularly, or the network is set to a short refresh rate.

What is a unique IP address?

A Unique IP is an IP address that is specific to your domain. When you add hosting to a domain/subdomain, it's assigned an IP on the Apache server which is shared with other sites. This shared IP address is most often the only IP you'll need.

What does an IP address mean?

An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. Internet Protocol version 4 (IPv4) defines an IP address as a 32-bit number.

What can an IP address tell me?

As you probably already know, your IP address is the address or logical location of your computer when it's connected to the Internet. Networking software/hardware must know your IP address for you to connect and go online. Websites and networks also need to know your IP address, in the digital way that computers do.

Can a device have more than one MAC address?

Each Network Interface will have its own MAC Address. So a modern computer with support for Wired Network (LAN Interface) as well as other types of network connectivity like Wireless Network (WiFi) will obviously have multiple MAC Addresses, one for each Network interface.

Can 2 devices share the same MAC address?

If two devices have the same MAC Address (which occurs more often than network administrators would like), neither computer can communicate properly. Duplicate MAC Addresses separated by one or more routers is not a problem since the two devices won't see each other and will use the router to communicate.

Can one MAC address have multiple IP addresses?

1 Answer. Putting multiple IP addresses on a single interface (and thus a single MAC address) is quite common for servers. For example: if a server has multiple roles and services running on it, it might be a good idea to give each role/service its own IP address.