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Never forward reverse lookups for private IP ranges All reverse lookups for private IP ranges (i.e., 192.168.0.x/24, etc.)
which are not found in /etc/hosts or the DHCP leases are answered
with "no such domain" rather than being forwarded upstream. The set
of prefixes affected is the list given in RFC6303 .
Important : Enabling these two options may increase your privacy,
but may also prevent you from being able to access
local hostnames if the Pi-hole is not used as DHCP server.
Block clients making more than
When a client makes too many queries in too short time, it
gets rate-limited. Rate-limited queries are answered with a
REFUSED reply and not further processed by FTL
and prevent Pi-holes getting overwhelmed by rogue clients.
It is important to note that rate-limiting is happening on a
per-client basis. Other clients can continue to use FTL while
rate-limited clients are short-circuited at the same time.
Rate-limiting may be disabled altogether by setting both
values to zero. See
our documentation
for further details.
Conditional forwarding
If not configured as your DHCP server, Pi-hole typically won't be able to
determine the names of devices on your local network. As a
result, tables such as Top Clients will only show IP addresses.
One solution for this is to configure Pi-hole to forward these
requests to your DHCP server (most likely your router), but only for devices on your
home network. To configure this we will need to know the IP
address of your DHCP server and which addresses belong to your local network.
Exemplary input is given below as placeholder in the text boxes (if empty).
If your local network spans 192.168.0.1 - 192.168.0.255, then you will have to input
192.168.0.0/24. If your local network is 192.168.47.1 - 192.168.47.255, it will
be 192.168.47.0/24 and similar. If your network is larger, the CIDR has to be
different, for instance a range of 10.8.0.1 - 10.8.255.255 results in 10.8.0.0/16,
whereas an even wider network of 10.0.0.1 - 10.255.255.255 results in 10.0.0.0/8.
Setting up IPv6 ranges is exactly similar to setting up IPv4 here and fully supported.
Feel free to reach out to us on our
Discourse forum
in case you need any assistance setting up local host name resolution for your particular system.
You can also specify a local domain name (like fritz.box) to ensure queries to
devices ending in your local domain name will not leave your network, however, this is optional.
The local domain name must match the domain name specified
in your DHCP server for this to work. You can likely find it within the DHCP settings.
Enabling Conditional Forwarding will also forward all hostnames (i.e., non-FQDNs) to the router
when "Never forward non-FQDNs" is not enabled.