Registro IPv4
host: uiowa.pressbooks.pub
class: IN
ttl: 90
type: A
ip: 18.172.226.32

Registro IPv4
host: uiowa.pressbooks.pub
class: IN
ttl: 90
type: A
ip: 18.172.226.15

Registro IPv4
host: uiowa.pressbooks.pub
class: IN
ttl: 90
type: A
ip: 18.172.226.127

Registro IPv4
host: uiowa.pressbooks.pub
class: IN
ttl: 90
type: A
ip: 18.172.226.86

host: pressbooks.uiowa.edu
class: IN
ttl: 21600
type: CNAME
target: uiowa.pressbooks.pub