Configurar un DNS reverso desde el portal de cliente CORE
Ingresra a tu portal de cliente en https://core.hostdime.com.mx
Da click en la opción de Servidores dedicados en el menu de Productos
Click on Details icon for the server you would like to modify the reverse DNS entries for.
Click on Reverse DNS Entries near the top of the page.
Edit the Value column on the IP address you would like to modify the rDNS record, then click the check (✓) icon to save the record for that IP.