Example with one nameserver: $TTL 86400 @ IN SOA ns1.bogus25.com. support.bogus25.com. ( 20010923; Serial 10800 ; Refresh after 3hrs 3600 ; Retry after 1 hr 604800 ; Expire in 1 week 86400 ) ; Minimum ttl 1 day IN NS ns1.bogus25.com. bogus25.com. IN A 72.96.52.127 www IN CNAME bogus25.com. ftp IN CNAME bogus25.com. mail IN A 72.96.52.127 IN MX 10 mail bogus25.com. IN MX 10 mail.bogus25.com. Example with two nameservers: $TTL 86400 @ IN SOA ns1.bogus25.com. support.bogus25.com. ( 20010923; Serial 10800 ; Refresh after 3hrs 3600 ; Retry after 1 hr 604800 ; Expire in 1 week 86400 ) ; Minimum ttl 1 day IN NS ns1.bogus25.com. IN NS ns2.bogus25.com. bogus25.com. IN A 72.96.52.127 www IN CNAME bogus25.com. ftp IN CNAME bogus25.com. mail IN A 72.96.52.127 IN MX 10 mail bogus25.com. IN MX 10 mail.bogus25.com.