Here is how to fix Domain availability check configuaration for WHMCS

Your domain availability check should be configured as follows:

1. Login to the File manager of your WHMCS folders and navigate to the WHMCS root directory
2. Navigate to  /resources/domains/
3. Create a whois.json file in the domains directory.

Add the following the below JSON to the whois.json file.

[
    {
        "extensions": ".ng,.com.ng,.i.ng,.org.ng,.net.ng,.edu.ng,.sch.ng,.gov.ng,.mobi.ng,.name.ng",
        "uri": "socket://whois.nic.net.ng",
        "available": "No Object Found"
    }
]

Save it and it should start getting .ng tld name

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