There a website I will like to host their Mautic installation on my CyberPanel but they already have their domain and website setup on a different host provider. I know how to create DNS nameservers and link a domain to Mautic.
I am wondering how to host the subdomain on my Maurice Instance without interfering with the main website already hosted somewhere else.
yes… this true
but if you already pointing using IN NS… then you no need do anything about ns record anymore
just add a website just like add new primary domain