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What Does A Cname Point To

CNAME records must point to a domain and not an IP address. A domain with a CNAME record can either point to another domain with a CNAME record or to a domain with an A record.

What should CNAME point to?

CNAME records must point to another domain name, never to an IP address. A hostname defined in a CNAME record must have no other resource records of other types (MX, A, etc.), except for DNSSEC records like RRSIG and NSEC.

Can a CNAME point to any domain?

Second, CNAME records can only be used to point to one domain name. This means that you cannot have multiple CNAME records for different subdomains pointing to different domain names.

Can a CNAME point to an IP address?

The ‘canonical name’ (CNAME) record is used in lieu of an A record, when a domain or subdomain is an alias of another domain. All CNAME records must point to a domain, never to an IP address.

Can a CNAME point to a port?

No. CNAME only maps names, not ports.

Can a CNAME point to a subdomain?

When you configure a CNAME record for a subdomain, DNS queries are no longer sent for the subdomain but for the domain or subdomain specified in the CNAME record to the appropriate name server. You can add a CNAME record to your subdomain in the Domains section of the Control Panel.

What is a CNAME example?

CNAME records can be used to alias one name to another. CNAME stands for Canonical Name. A common example is when you have both and pointing to the same application and hosted by the same server.

When should CNAME be used?

CNAME records are typically used to map a subdomain such as www or mail to the domain hosting that subdomain’s content. For example, a CNAME record can map the web address to the actual web site for the domain

Can CNAME redirect to URL?

A CNAME record redirects site visitors from the domain name they entered in their browsers to another domain name—in your case, your website running on Site Factory. Using CNAME to point to a website location instead of an actual IP address also allows Site Factory to better guarantee high-availability.

What is CNAME vs A record?

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.

What is a CNAME for dummies?

A canonical name (CNAME) is a type of Domain Name System (DNS) database record that indicates that a domain name is the nickname or alias for another domain name. Also referred to as the “true name,” the CNAME is especially important when multiple services run from a single IP address.

Can you have a CNAME without A record?

Usage of CNAME records means that there is an additional request sent to the DNS servers, which can cause a delay of a few milliseconds. You cannot create a CNAME record for the main domain name ( itself, this must be an A record.

Can a CNAME point to multiple A records?

Re: CNAME with multiple hostname/A record

A CNAME has to be unique, by RFC. As such, you can only add a single CNAME to point to a single FQDN (fully qualified domain name).

What is the difference between CNAME and DNS?

Basically, when you type a web address into your browser, the DNS looks up that domain name and then routes your browser to the associated IP address. CNAME is short for “Canonical Name.” CNAME records are essentially aliases that tie one domain name to another.

Is port 80 and 8080 the same?

GRC | Port Authority, for Internet Port 8080. Description: This port is a popular alternative to port 80 for offering web services. “8080” was chosen since it is “two 80’s”, and also because it is above the restricted well known service port range (ports 1-1023, see below).

How can I point subdomain to IP port?

Select URL Redirect Record from the drop-down menu for Type, put @ (your bare domain e.g., yourdomain. tld) for Host and use http://ipaddress:port for Value (IP address and port should be replaced with actual values):

Should subdomain be CNAME or A record?

A common use for CNAMEs is to map a subdomain to a host under someone else’s control. In the case of “A” record if they change the IP address you don’t need to change your DNS entry. An example of this is WordPress subdomain mapping.

Is CNAME slower than A record?

The impact of using CNAME is in most cases very low. The DNS response format allows the server to put some additional data in the message, and in many situation when you look up CNAME record, the server will add the corresponding A record in the additional data section, so no more look ups are required.

Is CNAME the same as name server?

A records/CNAMEs are simply the records that name servers use to match a domain URL, CNAME, and a web server IP address, A record. If you decide to use Cloudbric’s protection by changing your A records, you can keep your name server as the original name server provided by your web hosting provider.

How many CNAME records can you have?

A machine can have an unlimited number of CNAME aliases, but a separate CNAME record must be in the database for each alias. This helps in multiple servers like FTP server and WEB server each running on different ports from a single IP address.

How do I find CNAME records?

Look up and check CNAME records

  1. Go to your domain host’s website. Get help identifying your domain host.
  2. Sign in to your domain host account.
  3. Go to the DNS records for your domain. Get help finding your DNS records.
  4. Verify the results.

Can you have a CNAME and TXT record?

For that reason, if you create a CNAME, you cannot also create a TXT record, but you can and likely should create the the TXT record at the domain to which the CNAME refers.

How do I add a CNAME record to DNS?

Add a CNAME record to your domain’s DNS records

  1. Go to your domain’s DNS records.
  2. Add a record to your DNS settings, selecting CNAME as the record type.
  3. Return to the first window or tab and copy the contents of the Label/Host field.
  4. Paste the copied contents into the Label or Host field with your DNS records.

More items…

Does CNAME work with HTTPS?

Just to be able to redirect a HTTPS request you need DNS for that domain, a web server for that domain, and SSL for that domain. It doesn’t actually matter if you use a CNAME record or an A record. A redirect can happen either way.

How do I point DNS to URL?

How to Redirect a Domain Using DNS Records (URL Redirect)

  1. Create the first URL Redirect record with the domain name you are directing to: Host Name. …
  2. Click ‘Save Changes’ to save the record.
  3. Next create the second URL Redirect with the domain name you are directing to: Host Name. …
  4. Click ‘Save Changes’ to save the record.

How do I point a domain to another domain?

How to Point a Domain to a New Host?

  1. Get the New Nameserver Values. First things first, find a list of nameservers from your new hosting provider. …
  2. Apply the New Nameservers Values. The next step of pointing a domain name to a new host is to replace the domain’s old nameservers. …
  3. Wait for DNS Propagation.

Which takes precedence A record or CNAME?

A CNAME will take precedence over all other DNS records. This means that when a CNAME is present, all other DNS records are ignored. This includes NS records, A records, MX records, etc.

How many A records can a domain have?


A domain name can point to multiple IP addresses. You can have unlimited number of IP address or A records for your domain name or sub-domains.

Is a subdomain an A record?

A subdomain (or A-record) is a name that takes the place of www. A subdomain is actually a reference to a subdirectory on your website or, for example, to your own web server at home.

What is AAAA DNS record?

An AAAA record maps a domain name to the IP address (Version 6) of the computer hosting the domain. An AAAA record is used to find the IP address of a computer connected to the internet from a name.

Is A record required for domain?

Each domain needs to have a record for the root domain. Otherwise your domain won’t resolve, and accessing the URL in the browser will return a resolution error. In most cases, this configuration is an A record pointing to the IP where your site is hosted.

Do you need an A record for DNS?

Setting Up an A Record for Your Server

If you are hosting your own server or have a cloud server, you will need an A record pointed at the server’s IP address.

Can I have multiple A records in DNS?

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. For example, is a Google domain with an A record pointing to 68.178.

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.

Is port 443 a TCP or UDP?

There are services running on this web server that are using well known port numbers. UDP port 53 is used for DNS, TCP port 80 is used for non-encrypted web services, and TCP port 443 is used for encrypted web services.

Is HTTPS always port 443?

Is HTTPS always port 443? Port 443 is primarily used for handling HTTPS traffic, but it is important to note that HTTPS traffic can also be transmitted over port 80. Using this port for HTTPS does not mean that your connection is secure.

Is port 443 inbound or outbound?

Port 443/HTTPS is the HTTP protocol over TLS/SSL. Port 80/HTTP is the World Wide Web. Let’s face it, port 80/443 are generally a given for being open on any type of filtering device allowing traffic outbound on your network. If web servers are being hosted, connections will be allowed inbound to those web servers.

Can a domain point to a specific port?

DNS cannot point a domain name to an IP address with a specific port (Server IP address:Port number).

What ports does DHCP use?

The DHCP employs a connectionless service model, using the User Datagram Protocol (UDP). It is implemented with two UDP port numbers for its operations which are the same as for the bootstrap protocol (BOOTP). UDP port number 67 is the port used by the server, and UDP port number 68 is used by the client.

How do I redirect a subdomain to a URL?

To enable subdomain redirection:

  1. Click Subdomains under Domains in cPanel.
  2. Under Modify a Subdomain, locate the subdomain you want to redirect. Click Manage Redirection.
  3. In the Subdomain Redirection text box, enter the redirection destination address.
  4. When ready, click Save.

How many subdomains can a domain have?

Each domain name can have up to 500 subdomains. You can also add multiple levels of subdomains, such as A subdomain can be up to 255 characters long, but if you have multiple levels in your subdomain, each level can only be 63 characters long.