What are the 4 types of DNS records?

What are the types of records in DNS?

What are the four types of DNS server?

All DNS servers fall into one of four categories: Recursive resolvers, root nameservers, TLD nameservers, and authoritative nameservers.

What are the 3 types of DNS?

What is a DNS A record example?

As an example, an A Record is used to point a logical domain name, such as "google.com", to the IP address of Google's hosting server, "74.125. 224.147". These records point traffic from example.com (indicated by @) and ftp.example.com to the IP address 66.147.

DNS Record Types - CompTIA Network+ N10-007 - 1.8

What are the types of domain?

How many DNS servers are there?

Right now there are over 600 different DNS root servers distributed across every populated continent on earth.

What is DNS resource record?

A resource record, commonly referred to as an RR, is the unit of information entry in DNS zone files; RRs are the basic building blocks of host-name and IP information and are used to resolve all DNS queries.

What is Cname record in domain?

A Canonical Name or CNAME record is a type of DNS record that maps an alias name to a true or canonical domain name. CNAME records are typically used to map a subdomain such as www or mail to the domain hosting that subdomain's content.

What is AAA record in DNS?

An AAAA record is used to find the IP address of a computer connected to the internet from a name. 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 the most common record available in DNS?

Firstly, address (A) records are the most common record type by far. In brief, A records map domain names to IPv4 addresses. Secondly, as the internet gradually makes the transition to IPv6, there are AAAA records (spoken as “quad A”).

What are MX records?

A DNS 'mail exchange' (MX) record directs email to a mail server. The MX record indicates how email messages should be routed in accordance with the Simple Mail Transfer Protocol (SMTP, the standard protocol for all email). Like CNAME records, an MX record must always point to another domain.

What are PTR records in DNS?

A DNS pointer record (PTR for short) provides the domain name associated with an IP address. A DNS PTR record is exactly the opposite of the 'A' record, which provides the IP address associated with a domain name.

What is SPF record in DNS?

A sender policy framework (SPF) record is a type of DNS TXT record that lists all the servers authorized to send emails from a particular domain. A DNS TXT (“text”) record lets a domain administrator enter arbitrary text into the Domain Name System (DNS).

What are TXT records RRS in DNS?

A TXT record (short for text record) is a type of resource record in the Domain name system (DNS) used to provide the ability to associate arbitrary text with a host or other name, such as human readable information about a server, network, data center, or other accounting information.

What is Apex record?

An apex record is a DNS record at the root (or apex) of a DNS zone. For example, in the DNS zone contoso.com , an apex record also has the fully qualified name contoso.com (this is sometimes called a naked domain).

Where are DNS records stored?

DNS records are stored in authoritative servers. These records provide information about a domain, including its associated IP address for each domain. It is mandatory for all domains to have a specific set of default records.

What are A records?

An A record maps a domain to the physical IP address of the computer hosting that domain. Internet traffic uses the A record to find the computer hosting your domain's DNS settings. The value of an A record is always an IP address, and multiple A records can be configured for one domain name.

Can I have 3 DNS servers?

You can have more than two for a domain but usually three is tops unless you have multiple server farms where you would want to distribute the DNS lookup load. It's a good idea to have at least one of your DNS servers at a separate location. This can be helpful in the event one location goes down.

What is DNS and example?

DNS, or the Domain Name System, translates human readable domain names (for example, www.amazon.com) to machine readable IP addresses (for example, 192.0. 2.44).

What are the 5 domain names?

What are the 5 top-level domains?

What is fourth level domain?

A fourth level domain name helps to place the associated website within the context of the agency, whose name appears at the third level, while allowing the words at the fourth level to describe the site's purpose or content, e.g. careers.agency.govt.nz.

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

A pointer (PTR) record is a type of Domain Name System (DNS) record that resolves an IP address to a domain or host name, unlike an A record which points a domain name to an IP address.

Who is reverse IP?

Reverse IP Lookup is an incredibly powerful tool with many high-value business applications. Retrieve a list of all domains using the same IP address as you, and sharing the same resources Track down malicious behavior of phishing or scamming websites that reside on the same host.