SOA and NS example using some shortcuts
$ORIGIN ghana.com.
$TTL 86400
; owner TTL class type data
@ IN SOA austin.gh.com. Support.gh.com. (
199710161 ; serial
21600 ; refresh
3600 ; retry
2600000 ; expire
900 ) ; minimum
NS ns1
NS ns2
NS server.elsewhere.example.
Slide 22