Can a wildcard certificate be used during the installation of 3CX if it covers your public FQDN?

A wildcard certificate can indeed be used during the installation of 3CX if it covers your public Fully Qualified Domain Name (FQDN). Wildcard certificates are designed to secure a primary domain and all its subdomains. This means that if your wildcard certificate encompasses your FQDN, 3CX can utilize it for securing the communication channels.

Using a wildcard certificate simplifies the management of certificates for multiple subdomains under a single domain, streamlining the process and reducing costs related to acquiring separate certificates for each subdomain. This feature is particularly beneficial in a unified communications environment like 3CX, where multiple components often use different subdomains.

Therefore, because you are allowed to use wildcard certificates for your public FQDN, it clearly demonstrates that the application supports this kind of certificate for installation. With this flexibility, administrators can ensure secure connections and maintain a streamlined certification process.