Can A Hostname Have Multiple IP Addresses?

The hosts file allows no way of distinguishing different “record types” for its resolution.

So for hostname to IP address mapping, you only get one IP address per hostname (but multiple hostnames could resolve to the same IP address, which is the opposite).

Can a DNS 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.

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.

Can I have more than one a record?

You can’t use multiple records of the same name and type with simple routing. However, a single record can contain multiple values (such as IP addresses). For example, use multivalue answer routing when you need to return multiple values for a DNS query and route traffic to multiple IP addresses.

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.

Can two domains have the same IP address?

It is not possible to provide two domain names for the same Server IP address and get two different SSL certificates (one for each domain name). Also note that the use of Host Headers (which is how you can use a single IP for more than one SSL enabled domain) is not recommended for E-Commerce sites.

Can DNS have multiple IP addresses?

DNS can hold multiple records for the same domain name. DNS can return the list of IP addresses for the same domain name. When a web-browser requests a web-site, it will try these IP addresses one-by-one, until it gets a response.

Can I have multiple domain names for one website?

Pointing two URLs to the same website is a good way to direct traffic to your site from several different domain names. You can accomplish this in two ways: either redirect one of the URLs to your primary domain, or create an alias for one of the URLs. The alias would point that domain towards your primary domain.

What is DNS load balancing?

DNS load balancing is the practice of configuring a domain in the Domain Name System (DNS) such that client requests to the domain are distributed across a group of server machines. A domain can correspond to a website, a mail system, a print server, or another service that is made accessible via the Internet.

What is AAAA record?

An AAAA record maps a domain name to the IP address (Version 6) of the computer hosting the domain. The AAAA record is conceptually similar to the A record, but it allows you to specify the IPv6 address of the server, rather than the IPv4.

What is a PTR record?

A Pointer (PTR) record resolves an IP address to a fully-qualified domain name (FQDN) as an opposite to what A record does. PTR records are also called Reverse DNS records. You can check your PTR record in external DNS lookup solutions like MX Toolbox.

Does a domain need an A record?

“A records (also known as host records) are the central records of DNS. These records link a domain, or subdomain, to an IP address. A records and IP addresses do not necessarily match on a one-to-one basis. If you set NS records for your share hosting then there is no need to set an A record in DNS manager.

Why do I have 2 different IP addresses?

It’s because your Ethernet (cable) network card and your WiFi network card is just that, two different network interfaces. That means that to function, each of them have to have an IP address, given by your router. The cable, WiFi, and two more from some “virtual” network interfaces that provides a VPN connection.

Can you fake an IP address?

1 Answer. An attack from a remote location to fake your IP address, as opposed to just using your IP address, is very difficult to pull off as it requires changing the Internet network routing tables. An attack from the same area might work if your Internet IP address is a dynamic one, as most home broadband ones are.

Why do I have three IP addresses?

Having 3 IP addresses means that your system can be communicated with using three different IP addresses, and most likely means you have WiFi turned on and an Ethernet cable plugged in. One will be the loop back address (127.0.0.1) and that is only useful on the system itself.

Can I have 2 DNS A records?

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.

Do subdomains have the same IP address as the parent domain?

Status: Yes, The Subdomains (subwebs) on a subdirectory have their own IP address, and they are aliased to the directory using the IP. Subdomains may have their own email accounts too.