Host a addon domain in Crazydomain.com

Main domain under hosting: fresh.com.au

Host Server Information:

Server's shared IP Address: 103.68.166.65

Default:

Name Server: NS2.CRAZYDOMAINS.COM

Name Server: NS1.CRAZYDOMAINS.COM

DNS Settings:

A Record              freshexport.com.au                203.170.80.250

A Record              sophrecruit.com                     103.67.235.120

www.sophrecruit.com                  103.67.235.120 

sophrecruit.com                            203.170.80.250 

www.sophrecruit.com                  203.170.80.250

Modification setting:

Name Server: ns1.syrahost.com

Name Server: ns2.syrahost.com

For Email Hosting, WordPress Hosting, Web Hosting (Linux), Sitebeat (Website/eShop Builder) 

And, for Hosting Manager - cPanel

DNS settings:

A Record              example.com    103.68.166.65(Shared IP Address)

Pointing a domain to your server public IP

1. Ngnix ready

2. Edit "A" record of your domain and point it to your public IP address.
Host : @
Points to : 52.65.138.1
TTL : 1 Hour

3. Nameservers remains defult.

4. Ngnix server block point your public IP:
    server {
        listen       8081;
        server_name  52.65.138.1;

5. Go! mydomail.com:8081 => Test ok!

Next step:

SRV (godaddy DNS):

Type : SRV
Service : _http
Protocol: _tcp
Name : e1.life110volts.com
Priority: 0
Weight : 0
Target : @
Prot : 8081
TTL : 1 Hour