Please correct the following errors before continuing:
Intel Xeon E3-1240
The hostname is the server name, usually written like server.yourdomain.com. If you are not sure, you can use something simple such as server.yourdomain.com and update it later.
The NS1 / NS2 prefixes are only used if you plan to create private nameservers. For example, dns1 and dns2 can later become dns1.yourdomain.com and dns2.yourdomain.com.
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