Fedora 27
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Configure Zones : Name Resolution
2017/12/17
 
Create zone files that servers resolve IP address from domain name.
[1] For internal zone,
This example uses internal address [10.0.0.0/24], domain name [srv.world], but please use your own one when you set config on your server.
[root@dlp ~]#
vi /var/named/srv.world.lan 
$TTL 86400
@   IN  SOA     dlp.srv.world. root.srv.world. (
        2017121701  ;Serial
        3600        ;Refresh
        1800        ;Retry
        604800      ;Expire
        86400       ;Minimum TTL
)
        # define name server
        IN  NS      dlp.srv.world.
        # define name server's IP address
        IN  A       10.0.0.30
        # define mail exchanger
        IN  MX 10   dlp.srv.world.
# define IP address of a hostname
dlp     IN  A       10.0.0.30
[2] For external zone,
This example uses external address [172.16.0.80/29], domain name [srv.world], but please use your own one when you set config on your server.
[root@dlp ~]#
vi /var/named/srv.world.wan 
$TTL 86400
@   IN  SOA     dlp.srv.world. root.srv.world. (
        2017121701  ;Serial
        3600        ;Refresh
        1800        ;Retry
        604800      ;Expire
        86400       ;Minimum TTL
)
        # define name server
        IN  NS      dlp.srv.world.
        # define name server's IP address
        IN  A       172.16.0.82
        # define mail exchanger
        IN  MX 10   dlp.srv.world.
# define IP address of a hostname
dlp     IN  A       172.16.0.82
Configure Zones : Address Resolution
 
Create zone files that servers resolve domain names from IP address.
[3] For internal zone,
This example uses internal address [10.0.0.0/24], domain name [srv.world], but please use your own one when you set config on your server.
[root@dlp ~]#
vi /var/named/0.0.10.db 
$TTL 86400
@   IN  SOA     dlp.srv.world. root.srv.world. (
        2017121701  ;Serial
        3600        ;Refresh
        1800        ;Retry
        604800      ;Expire
        86400       ;Minimum TTL
)
        # define name server
        IN  NS      dlp.srv.world.

        # define the range of this domain included
        IN  PTR     srv.world.
        IN  A       255.255.255.0

# define hostname of an IP address
30      IN  PTR     dlp.srv.world.
[4] For external zone,
This example uses external address [172.16.0.80/29], domain name [srv.world], but please use your own one when you set config on your server.
[root@dlp ~]#
vi /var/named/80.0.16.172.db 
$TTL 86400
@   IN  SOA     dlp.srv.world. root.srv.world. (
        2017121701  ;Serial
        3600        ;Refresh
        1800        ;Retry
        604800      ;Expire
        86400       ;Minimum TTL
)
        # define name server
        IN  NS      dlp.srv.world.

        # define the range of this domain included
        IN  PTR     srv.world.
        IN  A       255.255.255.248

# define hostname of an IP address
82      IN  PTR     dlp.srv.world.
 
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