ddns

KEY=/etc/bind/Kize.domain.hu.+111+11111
SERVER=1.2.3.4
ZONE=domain.hu
HOSTNAME=ize

ddns_setup_set() {
        if [ "$interface" != "eth0" ] && [ "$new_ip_address" = "$old_ip_address" ]; then
                return
        fi
(
        sleep 5
        cat <<EOF | nsupdate -d -k "$KEY" 2>/dev/null
server $SERVER
zone $ZONE
update delete $HOSTNAME.$ZONE
update add $HOSTNAME.$ZONE 60 A $new_ip_address
send
EOF
) &
}


ddns_setup() {
        case $reason in
                BOUND|RENEW|REBIND|REBOOT)
                        ddns_setup_set
                        ;;
                *)
                        ;;
        esac
}


ddns_setup