teliot

# defines the type of data used to send the static routing information
# rfc3442
option classless-routes-lin code 121 = array of unsigned integer 8;
option classless-routes-win code 249 = array of unsigned integer 8;


subnet                          192.168.1.0 netmask 255.255.255.0 {
  range                         192.168.1.100 192.168.1.200;
  option domain-name-servers    192.168.1.5, 192.168.1.7;
  option domain-name            "t.home";

teliot

Jan 22 09:50:36 delle6430 dhcpd[2860]: DDNS: cleaning up lease pointer for a cancel cb=0x55fd8ab603b0
Jan 22 09:50:36 delle6430 dhcpd[2860]: Unable to add forward map from host1.domain.ca to 192.168.0.121: operation canceled

if you get the above error check your dhcpd.conf file for the section

zone name {
primary  IP <---- double check that IP leads to a reachable DNS server
key
}