Apr 8, 20173 min read

What is DNS? FAQ’S On DNS!

Domain Name Servers (DNS) are the Internet’s equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses. This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses.

1) What is a DNS server and how does it work?

The Domain Name System (aka DNS) is used to resolve human-readable hostnames like http://www.Dyn.com into machine-readable IP addresses like 204.13.248.115. DNS also provides other information about domain names, such as mail services.

2) What is an example of a DNS?

A domain, such as example.org , is registered and IP addresses need to be assigned to hostnames under it. An IP address block requires reverse DNS entries ( IP to hostname). A backup or second name server, called a slave, will reply to queries.

3) 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 .

4) What is a record for DNS?

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.

5) What is a AAAA DNS record?

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. Canonical Name records (CNAME).

6) What is an alias in DNS?

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, which is the “canonical” domain.

7) 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.

8) How do I setup a cname record for my domain?

To create the RMS CNAME Record:

Step 1 – Create CNAME Records.

Applies To: Windows Server 2008, Windows Server 2008 R2, Windows Server 2012

This step explains how to create the CNAME records in DNS.

To create the RMS CNAME Record

Log on to DC.fabrikam.com as Administrator.

Click Start, point to Administrative Tools, and then click DNS. This will bring up the DNS Manager.

From the DNS Manager, on the left, expand DC, expand Forward Lookup Zone, right-click fabrikam.com and select New Alias (CNAME) from the menu. This will bring up the New Resource Record dialog box.

Create CNAME Record.

On the New Resource Record box, under Alias name (uses parent domain if left blank): enter RMS.

On the New Resource Record box, under Fully qualified domain name (FQDN) for target host:, click Browse, double-click DC, double-click Forward Lookup Zones, double-click fabrikam.com and select the ADRMS Host record. Click OK.

RMS CNAME Record summary

Click OK.

Close DNS Manager.

To create the RMS-SQL CNAME Record

Log on to DC.fabrikam.com as Administrator.

Click Start, point to Administrative Tools, and then click DNS. This will bring up the DNS Manager.

From the DNS Manager, on the left, expand DC, expand Forward Lookup Zone, right-click fabrikam.com and select New Alias (CNAME) from the menu. This will bring up the New Resource Record dialog box.

On the New Resource Record box, under Alias name (uses parent domain if left blank): enter RMS-SQL.

On the New Resource Record box, under Fully qualified domain name (FQDN) for target host:, click Browse, double-click DC, double-click Forward Lookup Zones, double-click fabrikam.com and select the SQL1 Host record. Click OK.

GEARLOGY

What is DNS? FAQ’S On DNS!

1) What is a DNS server and how does it work?

The Domain Name System (aka DNS) is used to resolve human-readable hostnames like http://www.Dyn.com into machine-readable IP addresses like 204.13.248.115. DNS also provides other information about domain names, such as mail services.

2) What is an example of a DNS?

A domain, such as example.org , is registered and IP addresses need to be assigned to hostnames under it. An IP address block requires reverse DNS entries ( IP to hostname). A backup or second name server, called a slave, will reply to queries.

3) 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 .

4) What is a record for DNS?

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.

5) What is a AAAA DNS record?

6) What is an alias in DNS?

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, which is the “canonical” domain.

7) What is an A record and Cname?

8) How do I setup a cname record for my domain?

To create the RMS CNAME Record:

Step 1 – Create CNAME Records.

Applies To: Windows Server 2008, Windows Server 2008 R2, Windows Server 2012

This step explains how to create the CNAME records in DNS.

To create the RMS CNAME Record

Log on to DC.fabrikam.com as Administrator.

Click Start, point to Administrative Tools, and then click DNS. This will bring up the DNS Manager.

From the DNS Manager, on the left, expand DC, expand Forward Lookup Zone, right-click fabrikam.com and select New Alias (CNAME) from the menu. This will bring up the New Resource Record dialog box.

Create CNAME Record.

On the New Resource Record box, under Alias name (uses parent domain if left blank): enter RMS.

On the New Resource Record box, under Fully qualified domain name (FQDN) for target host:, click Browse, double-click DC, double-click Forward Lookup Zones, double-click fabrikam.com and select the ADRMS Host record. Click OK.

RMS CNAME Record summary

Click OK.

Close DNS Manager.

To create the RMS-SQL CNAME Record

Log on to DC.fabrikam.com as Administrator.

Click Start, point to Administrative Tools, and then click DNS. This will bring up the DNS Manager.

From the DNS Manager, on the left, expand DC, expand Forward Lookup Zone, right-click fabrikam.com and select New Alias (CNAME) from the menu. This will bring up the New Resource Record dialog box.

On the New Resource Record box, under Alias name (uses parent domain if left blank): enter RMS-SQL.

On the New Resource Record box, under Fully qualified domain name (FQDN) for target host:, click Browse, double-click DC, double-click Forward Lookup Zones, double-click fabrikam.com and select the SQL1 Host record. Click OK.

Click OK.

Close DNS Manager.

Hope This Helps!

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