UNIX for Dummies Questions & Answers

#/etc/rc.conf
hostname="fbsdgw.marbosoft.org"
defaultrouter="192.168.0.1"
ifconfig_em0="DHCP"
inetd_enable="YES"
ifconfig_em1="inet 172.16.1.1 netmask 255.255.255.0"
ifconfig_em2="inet 172.16.2.1 netmask 255.255.255.0"
gateway_enable="YES"
named_enable="YES"
dhcpd_enable="YES"
dhcpd_ifaces="em1"
dhcpd_conf="/usr/local/etc/dhcpd.conf"
#end

#/etc/namedb/named.conf
options {
    directory    "/etc/namedb";
    pid-file    "/var/run/named/pid";
    dump-file    "/var/dump/named_dump.db";
    statistics-file    "/var/stats/named.stats";
};

include "/etc/namedb/dhcp-dns.key";

zone "marbosoft.org" in {
    type master;
    file "db.marbosoft.org";
    allow-update { key DHCP_UPDATER; };
};
;this is the zone with a  DHCP client
zone "1.16.172.in-addr.arpa" in {
    type master;
    file "db.172.16.1.0";
    allow-update { key DHCP_UPDATER; };
};
;this zone still has static addresses
zone "2.16.172.in-addr.arpa" in {
    type master;
     file "db.172.16.2.0";
};

zone "." in {
    type hint;
    file "named.root";
};
#end

#file /etc/namedb/db.marbosoft.org
$TTL 1h
marbosoft.org. IN SOA fbsdgw.marbosoft.org. root.marbosoft.org. (
    2    ; serial
    1h    ; refresh
    1h    ; retry
    1w    ; ends
    1H    ; negative cashing
);

;name servers
marbosoft.org. IN NS    fbsdgw.marbosoft.org.

;canonical names
localhost.marbosoft.org.  IN A    127.0.0.1
;this is the client in DHCP; so I've excluded it from static addresses
;fbsdnw11.marbosoft.org.   IN A  172.16.1.2
fbsdnw21.marbosoft.org.   IN A  172.16.2.2
#I've excluded some rows like aliases
#end

#/etc/namedb/db.172.16.1.0
$TTL 1h
1.16.172.in-addr.arpa. IN SOA fbsdgw.marbosoft.org. root.fbsdgw.marbosoft.org. (
    1    
    1h 
    1h 
    1w
    1h 
);

;name servers
1.16.172.in-addr.arpa.    IN NS fbsdgw.marbosoft.org.

;canonical names
1.1.16.172.in-addr.arpa.    IN PTR fbsdgw.marbosoft.org.
;DHCP client
;2.1.16.172.in-addr.arpa.    IN PTR fbsdnw11.marbosoft.org.
#end

#the file /etc/namedb/named.root is the one installed by BIND9 itself

#file /usr/local/etc/dhcp.conf
authoritative;
option domain-name "marbosoft.org";
option domain-name-servers 172.16.1.1;
default-lease-time 600;
max-lease-time 7200;
ddns-update-style interim;
subnet 172.16.1.0 netmask 255.255.255.0 {
    range 172.16.1.100 172.16.1.150;
    option routers 172.16.1.1;
}
include "/etc/namedb/dhcp-dns.key";

zone marbosoft.org {
  primary 127.0.0.1;
  key DHCP_UPDATER;
}

zone 1.16.172.in-addr.arpa {
  primary 127.0.0.1;
  key DHCP_UPDATER;
}
#end

#file /etc/namedb/dhcp-dns.key
key DHCP_UPDATER {
    algorithm hmac-md5;
    secret "+4J+tLcLuwvnm/epVb96DYri4Ood1OG5M+IvN7RBgDgIuNpdmKCFkbyw5pmMXMCDGVuiVI/qokDTyyDVc0OoWw==";
};