Quick Answer: What Is An A Record Used For?

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..

Can an A record point to two IP addresses?

In either mode, a DNS A record must be defined with more than one IP address (known as DNS A record failover). The first IP address should point to the default, production server, and the other IP addresses should point to identical (or frequently synchronized) redundant servers.

Can an A record point to another domain?

CNAME records must point to another domain name, never to an IP address. A hostname defined in a CNAME record must have no other resource records of other types (MX, A, etc.), except for DNSSEC records like RRSIG and NSEC.

Can you have a Cname and a record?

A CNAME record must always point to another domain name and never directly to an IP address. A CNAME record cannot co-exist with another record for the same name. It’s not possible to have both a CNAME and TXT record for www.example.com .

What does Cname stand for?

Canonical Name recordA Canonical Name record (abbreviated as CNAME record) is a type of resource record in the Domain Name System (DNS) which maps one domain name (an alias) to another (the canonical name).

Is AAAA record necessary?

AAAA Records are like A records but for IPv6 IP addresses instead of IPv4. Note: If you wish to setup a DNS record with Name.com, it’s important to note you need to use our nameservers – so name.com manage and host your DNS.

Can MX record point to IP address?

No, MX records must not point to an IP address. MX records should point to address records (A or AAAA), domains, or hostnames.

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).

What is an A record?

An A record is a type of DNS record that allows the address of a computer to be found using its hostname. The “A” in “A record” stands for address. … Your A record allows these DNS servers to have the IP address that corresponds to your domain name.

What is the difference between an A record and a Cname?

The A record maps a name to one or more IP addresses when the IP are known and stable. The CNAME record maps a name to another name. It should only be used when there are no other records on that name. The ALIAS record maps a name to another name, but can coexist with other records on that name.

Does a Cname need an A record?

Usage of CNAME records means that there is an additional request sent to the DNS servers, which can cause a delay of a few milliseconds. You cannot create a CNAME record for the main domain name (mydomain.com) itself, this must be an A record.

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Vinyl Sounds Better Vinyl sounds better than MP3s ever could. Most of the music is broadcast in some lossy format, where details are missed, and the overall quality is reduced. It happens because audio files get compressed to make them small enough to store thousands of them on the phone, and to stream online.

How does an A record work?

Emails are routed through to the IP address which is set in the A-record of the host. … The A-record (or address-record) determines which IP address belongs to a domain name. This record ‘translates’ the domain name to an IP address.

Is a subdomain an A record?

A subdomain is a DNS record for a hostname that belongs to your domain.

What is the difference between an A record and a host record?

A Records: These are also called Address Records or sometimes Host Records. A record only resolves to IP addresses. These records point your domain to the IP address of your website or hosting. Let’s say that you own the domain name name.com which is hosted with us and the IP address of your hosting server is 127.0.

Can two servers have the same hostname?

Question 1: Yes it is possible for multiple devices to have the same hostname on a network, you can simply change the name of any two computers on a network and they will share the same hostname.

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: In name-based virtual hosting, also called shared IP hosting, the virtual hosts serve multiple hostnames on a single machine with a single IP address.

Can I have two A records?

You can do a lot with A records, including using multiple A records for the same domain in order to provide redundancy and fallbacks. 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.