In their simplest form, nameservers match domain names to IP addresses and share your server's domain names and IP addresses with the Internet. Without nameservers, potential visitors can only access your server and its websites via IP address.
Nameservers also share information with other nameservers. This allows visitors to quickly and efficiently access websites that your server hosts (propagation).
When you first set up a website, its DNS information may require several days to propagate throughout the Internet. This delay means that some visitors may be temporarily unable to access the website.
DNS records are the resources within a zone file that map domain names and other services to their IP addresses.
|Your server's local zone files must match the domain information that you specified to the registrar.|
The nameserver software on your server manages nameserver records. cPanel & WHM offers three nameserver software options: BIND, NSD, and MyDNS.
When you update your nameserver records at the registrar, the registrar can push your domain's DNS information to their DNS namespace.
Authoritative nameservers return responses to queries for one or more zones.
Clustered — Clustered nameservers are part of a collection of nameservers that all share information and authoritative nameserver status. These nameservers prevent down time. If one server fails, additional servers are available to perform the necessary functions.
Do not confuse a DNS cluster with a configuration cluster.
You can cluster software to ensure that all of the nameservers that are in the DNS cluster contain the same information. Clustered software also shares DNS information with servers that are external to the server that actually hosts the website.
cPanel & WHM stores zone files in the
/var/named directory, regardless of the selected nameserver software.
If your server belongs to a DNS cluster, and your DNS zones will not load, delete the temporary files in the
To do this, run the following command:
dnsadmin process runs, it checks all of the files in the
directory. If the
dnsadmin request has a large number of files to check, the request may time out before the system loads your DNS zones.
/var/cpanel/dnsrequests_db.last_clean_time file and check the most recent date on which the system cleared the
directory. We recommend that you set up a cron job to clear the directory on a regular basis.
If your DNS zones still do not load, open a support ticket.
cPanel DNSONLY™ software allows you to run a dedicated physical nameserver. It is the "bare-bones" version of cPanel & WHM, and only replicates DNS zones from your other servers.
To install cPanel DNSONLY on a non-cPanel & WHM server, follow the steps in our cPanel DNSONLY Installation Guide documentation.
After you create a cPanel DNSONLY server, add your cPanel DNSONLY server to a DNS cluster in WHM's DNS Cluster interface (WHM >> Home >> Clusters >> DNS Cluster). For more information about DNS Clusters, read our Guide to DNS Cluster Configurations documentation.
No. You can create a DNS cluster on several cPanel & WHM servers without DNSONLY.
You can also configure BIND to create a DNS cluster with non-cPanel & WHM servers. However, we do not support this configuration.
A Trial License banner appears in your WHM Home interface if your server currently possesses a 15-day trial cPanel & WHM license. The cPanel DNSONLY software does not require a license to function.
To remove the Trial License banner, you must remove the cPanel license from the server. To do this, perform the following steps:
cpanel.lisc file and the
/root/.cpanel/datastore/_usr_local_cpanel_cpanel_-F file to the directory that you created. To do this, run the following commands:
mv /usr/local/cpanel/cpanel.lisc /root/trashfiles/ mv /root/.cpanel/datastore/_usr_local_cpanel_cpanel_-F /root/trashfiles/
In the above commands,
Restart cPanel DNSONLY. To do this, run the following command: