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Error access to Subdomains
#5
RE: Error access to Subdomains
(11-02-2021, 03:20 AM)bradjtrammell Wrote: That's not at all accurate. Sub domain or sub-hosts can be an A record, or a CNAME, there is no required standard for it. As long as it points to the correct place it will work fine.

A CNAME can be used if the record shares the IP address of the main server by using the @ symbol, but again, there is no requirement to use either or.

Unfortunately i work for a domain registrar and web-hosting company.
What you are saying is a common mistake with DNS mapping.
The DNS A record is specified by RFC 1035.
Restrictions
    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.
    A CNAME can point to another CNAME, although this configuration is generally not recommended for performance reasons. When applicable, the CNAME should point as closely as possible to the target name in order to avoid unnecessary performance overheads.

The structure of an A record follows the standard top-level format definition defined RFC 1035.

CNAME records can be used to alias one name to another. CNAME stands for Canonical Name.

A common example is when you have both example.com and www.example.com pointing to the same application and hosted by the same server. To avoid maintaining two different records, it’s common to create:

    An A record for example.com pointing to the server IP address
    A CNAME record for www.example.com pointing to example.com

As a result, example.com points to the server IP address, and www.example.com points to the same address via example.com. If the IP address changes, you only need to update it in one place: just edit the A record for example.com, and www.example.com automatically inherits the changes.

Now to put a SUB-domain in Sentora hosting panel properly is to use a CNAME.
"Nothing is true; everything is permitted"

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Messages In This Thread
Error access to Subdomains - by christnicolas - 09-14-2021, 01:32 AM
RE: Error access to Subdomains - by sparkrack - 09-14-2021, 06:33 AM
RE: Error access to Subdomains - by spoonman - 11-01-2021, 06:46 AM
RE: Error access to Subdomains - by bradjtrammell - 11-02-2021, 03:20 AM
RE: Error access to Subdomains - by spoonman - 11-02-2021, 10:40 AM

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