Before using our script, please buy a linux server first,

I recommend Linode.com , Generally, the $5/month plan is enough. ( Because the code of our script is all written by myself, all data processing code is very lightweight but powerful. )

1. Register account

Please click here to register: https://login.linode.com/signup

2. Create a Linode

Click here to deploy a server: https://cloud.linode.com/linodes/create

Images: Select "CentOS 7"
Region: Choose a server location based on your needs
Linode Plan: Click "Shared CPU", and select "Nanode 1 GB" (Usually, this is enough)
Root Password:  Enter the management password of the server system (this password needs to be sent to us later)

And then click "Create Linode".

3. Send the Server IP and Root Password to domains@onnoon.com

4. Set the DNS records of your website domain

Set the A record of "www" ,  "@" , "parking" to your server IP.

5. Config the script and add domains

Login the AdminPanel:

set the script configuration according to your needs and  add your domains  which is for sale.

5. Parking your other domains to your own website's Landing-Page

When all of the above are done, please change the dns settings of your other domains.

How to set:

Set the cname record of "www" ,  "@" to " parking.***.com " ( ***.com is your site domain )

You can contact your registar support to bulk setting the domains DNS records.

About Step 5:
In general, we use the DNS provided by the registrar, but each time we need to set records such as @, www, which is relatively complicated and time-consuming.
We can help you build your own DNS server, such as:

domain-for-sale.yourdomain.com
phone-xxxxxxxxxx.yourdomain.com

You only need to modify the DNS of your other domain names to your own DNS. No other redundant operations are required, accessing these domains will automatically open the landing-page.

See More: http://www.namecontainer.com/dns/

Well done,  enjoy selling domain names through your own domain name marketplace.