This type of record indicates the location of the domain’s DNS servers. If you want to redirect a domain to a server in the e24cloud service, you must set the same DNS server names in your domain registrar panel. Instructions for changing the DNS delegation for the most popular registrars can be found on these pages.
Unlike changing other DNS records, changing name servers is not immediate. Propagation can take up to 48h during which the website and email may not function correctly. There is no need to change the default value of these records.