Question: What Is DNS Record Class?

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 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 do you mean by DNS?

domain name systemThe domain name system (DNS) connects URLs with their IP address. With DNS, it’s possible to type words instead of a string of numbers into a browser, allowing people to search for websites and send emails using familiar names.

Can an A record point to another domain?

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 is the purpose of DNS AAAA record?

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 DNS 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.

How DNS works step by step?

ProcessStep 1: Requesting Website Information. First, you visit a website by typing a domain name into a web browser. … Step 2: Contact the Recursive DNS Servers. … Step 3: Query the Authoritative DNS Servers. … Step 4: Access the DNS Record. … Step 5: Final DNS Step. … Authoritative DNS Server. … Recursive Nameserver.

What is DNS and its types?

What are the different types of DNS server? All DNS servers fall into one of four categories: Recursive resolvers, root nameservers, TLD nameservers, and authoritative nameservers.

What is DNS used for?

DNS translates domain names to IP addresses so browsers can load Internet resources. Each device connected to the Internet has a unique IP address which other machines use to find the device. DNS servers eliminate the need for humans to memorize IP addresses such as 192.168.

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.

What are the two types of DNS?

The three DNS server types server are the following:DNS stub resolver server.DNS recursive resolver server.DNS authoritative server.

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.

How do I redirect a domain?

How to Redirect Your Domain Name to a Social Media or E-Commerce SiteLog into your account (where you registered the domain name)Find “Domains” and click on “Manage”Click on the domain name you would like to redirect.Look for “Domain Forwarding” or “Forwarding” section.Click “Add New”More items…

Can one IP have multiple DNS?

A Records are the simplest type of DNS records, and one of the primary records used in DNS servers. … 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.

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.

What is the A record in DNS?

What is a DNS A record? 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 google.com, the ‘A’ record currently returns an IP address of: 172.217.

Is changing DNS safe?

Changing your current DNS settings to the OpenDNS servers is a safe, reversible, and beneficial configuration adjustment that will not harm your computer or your network. … You can print out this page and write down your previous DNS settings if desired.

What is the difference between and A and AAAA record in DNS?

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 DNS should I use?

Public DNS Servers Personally, I prefer OpenDNS (208.67. 220.220 and 208.67. 222.222) and Google Public DNS (8.8. 8.8 and 8.8.

What are benefits of DNS?

DNS servers help the standard Internet users to use Internet resources without having to remember port numbers & IP addresses , Even similar services , such as different areas of the website may be hosted at different IP addresses for security reasons .

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.