설정: wix에 www.mydomain.com 이 있는데, yyy.mydomain.com을 bluehost에서 서비스하고자 하는 경우:

1. wix.com의 domain management의 advanced에서 yyy라는 A record를 추가한다. 

2. bluehost.com 의 cpanel >> domain >> assign domain 으로 간다.    

Use a domain that is not already associated with your account. 에 체크하고 mydomain.com 을 입력한다.

그러면 verifying 후에 IP주소를 준다.

이 주소를 상기 1번 과정에 입력한다.

step3에서 addon 을 체크한다.

EPP key:  를 요구하면 --> registar에서 EPPkey를 생성하여 입력한다.

3. bluehost.com 의 cpanel >> domain >> subdomain 에서 yyy.mydomain.com 을 생성하고 적당한 folder를 할당한다.

예를 들어 my-domain.com을 cafe.daum.net/my-cafe 로 가게하려면

my-domain.com 의 redirect 기능을 이용할 것

link: https://my.bluehost.com/cgi/dm/redirect

In our system, we always show at least three host records for every domain name:

• The www record specifies where you want visitors to land if they type, for instance, www.example.com.
• The @ (“at”) record specifies where you want visitors to land if they type your domain name without a host name, such as example.com.
• The * (“star”) record specifies where you want visitors to land if they type any other host name, such as sales.example.com.

출처: http://namebargain.com/help-center/

Differences between the A and CNAME records

The A and CNAME(canonical * (성경이) 정본에 속하는 name) records are the two common ways to map an host name (name hereafter) to one or more IP address. Before going ahead, it’s important that you really understand the differences between these two records. I’ll keep it simple.

The A record points a name to a specific IP. For example, if you want the nameblog.dnsimple.com to point to the server 185.31.17.133 you will configure

blog.dnsimple.com. A 185.31.17.133

The CNAME record points a name to another name, instead of an IP. The CNAME source represents an alias for the target name and inherits its entire resolution chain. Let’s take our blogas example.

blog.dnsimple.com.      CNAME	aetrion.github.io.
aetrion.github.io.      CNAME	github.map.fastly.net.
github.map.fastly.net	A	    185.31.17.133

We use GitHub Pages and we set blog.dnsimple.com as a CNAME of aetrion.github.io, which in turns is itself a CNAME of github.map.fastly.net, which is an A record pointing to185.31.17.133. In short terms, this means that blog.dnsimple.com resolves to 185.31.17.133.

To summarize, an A record points a name to an IP. CNAME record can point a name to anotherCNAME or an A record.

출처; https://support.dnsimple.com/articles/differences-a-cname-records/