What 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.
Is CNAME better than a record?
General rules: Use an A record if you manage which IP addresses are assigned to a particular machine, or if the IP are fixed (this is the most common case). Use a CNAME record if you want to alias one name to another name, and you don’t need other records (such as MX records for emails) for the same name.
Can an A record point to a CNAME?
You cannot create a CNAME record for the main domain name (mydomain.com) itself, this must be an A record. MX or NS (nameserver) records may never point to a CNAME record, only A records.
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.
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 .
Can you have multiple CNAME records?
You cannot. A CNAME makes one record another name for another. If a record could have CNAMES for two names, it wouldn’t be another name for either of them, but a name for something entirely new, making a CNAME entry inappropriate.
Can you have two CNAME records?
Can I set up multiple A and CNAME records? While you are allowed to create multiple A and CNAME records for the same destination, you can set only one A and CNAME record per source or host name.
What is DNS record priority?
Priority – This acts the same way as the MX Level / preference in the MX record. The lower the number in the priority field, the more desirable the associated target. 0 is the highest priority (lowest number). Weight – Allows the zone administrators to distribute load to multiple targets (load balance).
Can an MX record point to a Cname?
As stated in the IETF (Internet Engineering Task Force) RFCs (Request for Change), it is not permitted to point an MX record to an alias/ CNAME.
When to use a CNAME and a Records?
For example, say you have several subdomains, like www.mydomain.com, ftp.mydomain.com, mail.mydomain.com etc and you want these sub domains to point to your main domain name mydomain.com. Instead of creating A records for each sub-domain and binding it to the IP address of your domain you can create CNAME records.
Can a CNAME record point to an IP address?
All CNAME records must point to a domain, never to an IP address. Oftentimes, when sites have subdomains such as blog.example.com or shop.example.com, those subdomains will have CNAME records which point to a root domain (example.com).
What’s the difference between an alias and a CNAME?
These are the main differences: 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.
Do you have a DNS CNAME or PTR record?
DNS CNAME Record and PTR Record explained Sooner or later, you will deal with a DNS CNAME Record. In fact, as an Internet user, you are unconsciously using these records all the time. Instead, PTR records are somewhat less common, but if you work for a larger company you should know about them.