Tag Archives: isc-dhcp

DNS updated via DHCP: BIND9 and ISC-DHCP on Linux

Linux: Debian stable (currently version 7)


Create a key required for DHCP server to update the DNS zones:

This will create /etc/bind/rndc.key, whose contents will look something like this:

BIND configuration

Configuration files:







(just to setup the external forwarders)






DHCP configuration

Here there is just one file that has to be modified: dhcpd.conf


Here we need to enter the key in plain text.


Once everything is configured, just restart bind and dhcp: