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Name Server records (NS Record)—specifies that a DNS Zone, such as “example.com” is delegated to a specific Authoritative Name Server, and provides the address of the name server.
How do I delegate a DNS zone?
To create a delegation, right-click the domain (example.com) and select New Delegation from the shortcut menu. Click Next in the Delegated Domain Name wizard. Type the sub-domain under ‘Delegated domain” you want to delegate. Click Next.
What is DNS Record Type AAAA?
AAAA records are DNS records that use an IP address to connect a domain to a website, and can be added to your domain at any time. They are similar to A records, but AAAA records point to 128–bit/IPv6 addresses, instead of the IPv4 addresses used by A records.
What are the two types of records used in DNS?
Different types of DNS records are as follows: Name Server (NS) Record: Describes a name server for the domain that permits DNS lookups within several zones. Mail Exchange (MX) Record: Permits mail to be sent to the right mail servers located in the domain. Address (A) Record: Used to map a host name to an IP address.
What is Type A in DNS?
The “A” stands for “address” and this is the most fundamental type of DNS record: it indicates the IP address of a given domain. For example, if you pull the DNS records of cloudflare.com, the A record currently returns an IP address of: 104.17. 210.9. A records only hold IPv4 addresses.
What DNS record type is used for an IPv6 host record?
An AAAA-record is used to specify the IPv6 address for a host (equivalent of the A-record type for IPv4). IPv6 is the new replacement for the old IPv4 address system.
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 A record and C record in DNS?
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. The ALIAS record maps a name to another name, but can coexist with other records on that name. The URL record redirects the name to the target name using the HTTP 301 status code.
What is AAAA record vs A record?
A and AAAA records are equally important when it comes to resolving DNS. The difference lies in that A records is used to resolve a hostname which corresponds to an IPv4 address, while AAAA records are used to resolve a domain name which corresponds to an IPv6 address.
What is a PTR record used for?
A PTR (or Pointer) record is a security tool. Essentially, when you receive an email, your mail server uses the PTR record that comes in with the email message to check that the mail server sending the email matches the IP address that it claims to be using. This is also known as “reverse DNS lookup”.
What is a 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. Each DNS Server contains RRs for the portion of the name space for which it is authoritative.
Which record type is used to declare a new zone?
Which record type is used to declare a new zone? A start of authority (SOA) record is information stored in a domain name system (DNS) zone about that zone and about other DNS records. A DNS zone is the part of a domain for which an individual DNS server is responsible.
What is difference between A record and Cname?
An A record is the actual record. The name is resolved to the corresponding IP address. CNAME records (short for Canonical Name) map your hostname to another hostname. It is useful for pointing many hosts to the same place and updating them easily.
What DNS record type is used for an IPv6 host record quizlet?
The AAAA records maps an IPv6 (128-bit) DNS host name to an IP address. The MX record identifies servers that can be used to deliver e-mail.
What are the types of DNS?
The three different types of DNS server interoperate to deliver correct and current mappings of IP addresses with domain names.The three DNS server types server are the following: DNS stub resolver server. DNS recursive resolver server. DNS authoritative server.
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. 224.236.
What does SOA record contains?
The DNS ‘start of authority’ (SOA) record stores important information about a domain or zone such as the email address of the administrator, when the domain was last updated, and how long the server should wait between refreshes.
What is SPF record in DNS?
An SPF record or SPF TXT record is a record that is part of your domain’s DNS — similar to a DMARC record. If it is, then a link has been established between the piece of email and the email domain.
How do I add a cname record to DNS?
Add a CNAME record to your domain’s DNS records Go to your domain’s DNS records. Add a record to your DNS settings, selecting CNAME as the record type. Return to the first window or tab and copy the contents of the Label/Host field. Paste the copied contents into the Label or Host field with your DNS records.
What is the difference between PTR and a 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.
What types of DNS records have priority or preference values?
What types of DNS records have priority or preference values? Typically mail (MX) and service (SRV) records.
