Just wiped my RaspberryPi 3b+ and figured I forgot to back-up some PiHole settings 🤦‍♂️ (go figure). This is my attempt at keeping a tab there and preventing this from happening again.

AdLists #

1. https://raw.githubusercontent.com/TheShawnMiranda/LG-TV-Ad-Block/master/list
2. https://big.oisd.nl

PiHole settings #

DNS #

Providers #

1. NextDNS¹
2. DNS0.eu²
3. Mullvad DNS³

Setup #

1. AuthN to nextdns.io¹
2. copy IPv4 & IPv6 of NextDNS
3. come back to PiHole
4. Settings → DNS → Custom DNS servers
5. paste them in this box
6. Save&Apply

DHCP #

1. Settings → DHCP → DHCP Settings
2. toggle DHCP server enabled
   • input a range, eg. x.x.x.100 - 200
3. toggle Enable additional IPv6 support (SLAAC + RA)
4. Advanced DHCP Settings
5. DHCP lease time: 1d
6. check Advertise DNS server multiple times

Request timeout for icmp_seq 0
ping: sendto: No route to host

Modem (router) settings #

DNSv4/v6 setup #

1. Internet → Zugangsdaten → DNS Server
2. DNSv4-Server
   • Andere DNSv4-Server verwenden
   • add IPv4 of RaspberryPi
3. DNSv6-Server
   • Andere DNSv6-Server verwenden
   • add IPv6 of RaspberryPi

DHCPv4 setup #

1. Heimnetz → Netzwerkeinstellungen
2. IP-Adressen → IPv4-Einstellungen
3. uncheck DHCP-Server aktivieren

F.A.Q. #

PiHole lacks an IPv4 address #

Even though you’ve pinned it on the modem somehow PiHole flushed it. This is how you can pin it.

Since you’re using Raspberry Pi OS Lite and don’t have the dhcpcd service, you can set a static IP address using the Network Manager tool. Here’s how to do it:

Using nmtui #

1. Open the Network Manager text user interface by running:

sudo nmtui

2. Select “Edit a connection” and choose your network interface (either eth0 for Ethernet or wlan0 for Wi-Fi).

3. Navigate to “IPv4 CONFIGURATION” and change it from “Automatic” to “Manual”.

4. Add your desired static IP address, along with the subnet mask (usually /24), gateway, and DNS servers.

5. Save the configuration and exit nmtui.

6. Reboot your Raspberry Pi to apply the changes:

sudo reboot

Alternative Method: Editing Configuration Files #

If you prefer editing configuration files directly, you can modify the NetworkManager connection file:

1. Find your connection file in /etc/NetworkManager/system-connections/.

2. Edit the file using sudo:

sudo nano /etc/NetworkManager/system-connections/your_connection_file

3. In the [ipv4] section, add or modify these lines:

[ipv4]
method=manual
address1=192.168.1.X/24,192.168.1.1
dns=192.168.1.1;8.8.8.8;

Replace “192.168.1.X” with your desired static IP, and adjust the gateway and DNS servers as needed.

4. Save the file and restart the NetworkManager service:

sudo systemctl restart NetworkManager

These methods should allow you to set a static IP address on your Raspberry Pi OS Lite system without relying on the dhcpcd service⁴⁵⁶.

Cannot SSH into my PiHole because there’s no IPv4 attached to it! #

If there’s no IPv4, there’s an IPv6 for sure, try using that instead

ssh pi@2001:db8:0:2234:5678:9abc:def0:1234

Rebooted my PiHole and I don’t know if it came up #

Ping either IPv4 or IPv6; whichever’s attached.

# traditional ping IPv4
ping pi.hole
ping 192.0.2.42

# ping IPv6
ping6 2001:db8:0:2234:5678:9abc:def0:1234

Cannot SSH onto my PiHole because of SSH strictHostKeyChecking #

1. remove the host from ~/.ssh/known_hosts

ssh-keygen -R example.com

1. retry SSH-ing again