DNS - Zone and Zone files
A DNS zone is an administrative space within the Domain Name System (DNS). A DNS zone forms one part of the DNS namespace delegated to administrators or specific entities. Each zone contains the resource records for all of its domain names.
A DNS zone file is a text file stored on a DNS server that contains all the DNS records for every domain within that zone. It is mandatory for the zone file to have the TTL (Time to Live) listed before any other information. The TTL specifies how long a DNS record is in the DNS server’s cache memory. The zone file can only list one DNS record per line and will have the Start of Authority (SOA) record listed first. The SOA record contains essential domain name information including the primary authoritative name server for the DNS Zone.
A sample is below
references
https://www.liquidweb.com/kb/understanding-the-dns-process/
A DNS zone is an administrative space within the Domain Name System (DNS). A DNS zone forms one part of the DNS namespace delegated to administrators or specific entities. Each zone contains the resource records for all of its domain names.
A DNS zone file is a text file stored on a DNS server that contains all the DNS records for every domain within that zone. It is mandatory for the zone file to have the TTL (Time to Live) listed before any other information. The TTL specifies how long a DNS record is in the DNS server’s cache memory. The zone file can only list one DNS record per line and will have the Start of Authority (SOA) record listed first. The SOA record contains essential domain name information including the primary authoritative name server for the DNS Zone.
A sample is below
references
https://www.liquidweb.com/kb/understanding-the-dns-process/
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