DHCP_DNS_MASTER=10.15.100.3 DHCP_DNS_SERVER=10.15.100.3 DHCP_TFTP_SERVER=10.15.100.3 DHCP_ROUTERS=10.15.100.2 DHCP_DOMAIN=example.com DHCP_SITE_DOMAIN=site1.example.com DHCP_DYN_IPS_DOMAIN=dhcp.site1.example.com DHCP_REV_DOMAIN=100.15.10.in-addr.arpa. DHCP_SUBNET=10.15.100.0 DHCP_NETMASK=255.255.255.0 DHCP_IP_FIRST=10.15.100.50 DHCP_IP_LAST=10.15.100.250 DHCP_BROADCAST=10.15.100.255 DNS_FORWARDER_IP_1=8.8.8.8 DNS_FORWARDER_IP_2=8.8.4.4 DNS_TSIG_KEY_INTERNAL_SECRET=change_it DNS_TSIG_KEY_EXTERNAL_SECRET=change_it DNS_TSIG_KEY_RNDC_SECRET=change_it