Engedélyeztem a tűzfalban:
$IPTABLES -A OUTPUT -p udp -m multiport --ports 68 -j ACCEPT

/etc/bind/named.conf.local -ban:


include "/etc/bind/rndc.key";

controls {
      inet 127.0.0.1 allow {localhost;}
      keys { "rndc-key"; } ;
};


zone "peldasuli.local" {
      type master ;
      file "/var/lib/bind/peldasuli.local";
      allow-update { key "rndc-key";};

};

zone "168.192.in-addr.arpa" {
     type master ;
     file "/var/lib/bind/168.192";
     allow-update {key "rndc-key"; };

};

cp /etc/bind/rndc.key /etc/dhcp
cd /etc/dhcp
chown root:dhcpd rndc.key
mv rndc.key ddns-keys/


/etc/dhcp/dhcpd.conf  -om:

include " /etc/dhcp/ddns-keys/rndc.key";
ddns-update-style interim;



# option definitions common to all supported networks...
option domain-name "peldasuli.local";
option domain-name-servers 192.168.1.254;

default-lease-time 600;
max-lease-time 7200;


# Use this to send dhcp log messages to a different log file (you also
# have to hack syslog.conf to complete the redirection).
log-facility local7;

# No service will be given on this subnet, but declaring it helps the
# DHCP server to understand the network topology.

subnet 10.0.2.0 netmask 255.255.255.0 {
}

# This is a very basic subnet declaration.




subnet 192.168.1.0 netmask 255.255.255.0 {
  range 192.168.1.111 192.168.1.222;
  option routers 192.168.1.254;
  zone peldasuli.local. {
       primary 127.0.0.1;
       key "rndc.key";

  }

  zone 168.192.in-addr.arpa. {
       primary 127.0.0.1;
       key "rndc.key";
  }
}