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Old 12-20-2008, 07:42 PM   #1
LQ Newbie
Registered: Dec 2008
Posts: 10

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DHCP autoupdate DNS failing to update reverse DNS

I am getting the following error:
unable to add reverse map from to Box.local.lan: timed out

I have been staring at my dhcpd.conf file for the problem, and don't see it:

ddns-updates on;
ddns-update-style interim;
update-static-leases on;
ddns-domainname "local.lan";
ddns-rev-domainname     "";
ignore  client-updates;
include "/var/lib/bind/keydef";

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

default-lease-time 4320;
max-lease-time 8640;

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.

# 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.

zone local.lan. {

zone {

subnet netmask {
  option broadcast-address;
  option routers;

Here is my named.config.local:

include "/etc/bind/zones.rfc1918";

include "/var/lib/bind/keydef";

zone "local.lan" IN {
        type master;
        file "/var/lib/bind/local.lan.hosts";
        allow-update { key DHCP_UPDATER; };
        notify yes;

zone "" IN {
        type master;
        file "/var/lib/bind/";
        allow-update { key DHCP_UPDATER; };
        notify yes;
Any ideas??


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