A Canonical Name record (abbreviated as CNAME record) is a type of resource record in the Domain Name System (DNS) used to specify that a domain name is an alias for another domain (the ‘canonical’ domain).
So, what is canonical name record?
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 Cname?
CNAME stands for Canonical Name. CNAME records can be used to alias one name to another. For example, if you have a server where you keep all of your documents online, it might normally be accessed through docs.example.com .
How could you get an authoritative answer using nslookup?
To get an authoritative answer you need to go to the source. You can do this by specifying the authoritative name server at the end of the request. Use the -type=soa option to tell nslookup to display the authoritative (primary) name server. The address labeled primary name server is the DNS authority for the domain.
What is an A record and 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 in turns it can coexist with other records on that name.
How do you create a cname record?
Editing a CNAME
Log into your Bluehost Hosting Account.
Select the DNS Zone Editor icon in the Domains section.
Select the domain you’re modifying from the drop-down box.
Scroll down to the heading named CNAME.
Make the necessary changes the CNAME.
Click on the Add Record button to create the record.
What is in a Aname?
What is an ANAME record? “DNS Made Easy are the first provider in the world to revolutionize the way DNS zones can be configured using the ANAME record” Their words, not mine, however: CNAME records cannot be created for the apex, or root record, of a domain.
What is nslookup and what does it tell us?
nslookup is a network administration command-line tool available for many computer operating systems for querying the Domain Name System (DNS) to obtain domain name or IP address mapping or for any other specific DNS record.
What is the DNS records?
DNS records are basically mapping files that tell the DNS server which IP address each domain is associated with, and how to handle requests sent to each domain. Some DNS records syntax that are commonly used in nearly all DNS record configurations are A, AAAA, CNAME, MX, PTR, NS, SOA, SRV, TXT, and NAPTR.
What is ns and a record?
An NS record is used to delegate a subdomain to a set of name servers. Whenever you delegate a domain to DNSimple the TLD authorities place NS records for your domain in the TLD name servers pointing to us.
What is a PTR record used for?
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. Here is what it looks like when performing external DNS lookup: IP addresses of all Intermedia mail servers already have PTR records created.
What is a record for?
A Records. DNS records are used to control the location of a resource on the Internet. 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, “220.127.116.11”.
What is a non authoritative answer?
“The answer you’ve received is essentially a cached or forwarded response from your local DNS server. Basically, a non-authoritative name server is one that does not contain the records for the zone being queried; your local DNS is likely not going to have Google’s name records”
How do you do a DNS lookup?
To run nslookup on Microsoft Windows, follow these steps:
Open a DOS command window. To do this, click Start, click Run, type cmd, and then press Enter.
At the command prompt, type the following command. Replace example.com with the domain that you want to test: nslookup example.com.
Interpret the output from nslookup.
What is a records?
A Records are the most basic type of DNS record and are used to point a domain or subdomain to an IP address. Assigning a value to an A record is as simple as providing your DNS management panel with an IP address to where the domain or subdomain should point and a TTL.
What is TTL in DNS record?
DNS records. TTLs also occur in the Domain Name System (DNS), where they are set by an authoritative name server for a particular resource record. When a caching (recursive) nameserver queries the authoritative nameserver for a resource record, it will cache that record for the time (in seconds) specified by the TTL.
What is an AAAA record in DNS?
A records are used for conversion of domain names to corresponding IP addresses. IP Version 6 Address records (AAAA) The record AAAA (also quad-A record) specifies IPv6 address for given host. So it works the same way as the A record and the difference is the type of IP address.
What is a SOA record?
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. Each zone contains a single SOA record.
What is MX?
A mail exchanger record (MX record) is a type of certified and verified resource record in the Domain Name System that specifies a mail server responsible for accepting email messages on behalf of a recipient’s domain, and a preference value used to prioritize mail delivery if multiple mail servers are available.
What is the use of name server?
Nameserver is a server on the internet specialized in handling queries regarding the location of a domain name’s various services. Nameservers are a fundamental part of the Domain Name System (DNS). They allow using domains instead of IP addresses.
What is an SRV record?
The SRV record is a Domain Name System (DNS) resource record that is used to identify computers that host specific services. SRV resource records are used to locate domain controllers for Active Directory. To verify SRV locator resource records for a domain controller, use one of the following methods.
What is a non authoritative name server?
The answer you’ve received is essentially a cached or forwarded response from your local DNS server. Basically, a non-authoritative name server is one that does not contain the records for the zone being queried; your local DNS is likely not going to have Google’s name records, for example.
What is a DNS TXT record?
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.