What are the potential pitfalls of using wildcard DNS records for subdomains in PHP projects?

Using wildcard DNS records for subdomains in PHP projects can lead to security vulnerabilities such as subdomain takeover attacks. To mitigate this risk, it is recommended to explicitly define DNS records for each subdomain used in the project. 

// Explicitly define DNS records for subdomains
$subdomains = ['subdomain1', 'subdomain2', 'subdomain3'];
foreach ($subdomains as $subdomain) {
    // Add DNS records for each subdomain
    // For example:
    // echo "CNAME $subdomain.example.com. example.com.";
}

Keywords

Wildcard DNS records subdomains PHP projects security risks DNS configuration.

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