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43 lines
3.1 KiB
Markdown
43 lines
3.1 KiB
Markdown
# Run NextDNS on your UDM
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### Features
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1. Run PiHole on your UDM with a completely isolated network stack. This will not port conflict or be influenced by any changes on by Ubiquiti
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2. Persists through reboots and firmware updates.
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### Requirements
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1. You have setup the on boot script described [here](https://github.com/boostchicken/udmpro-utilities/tree/master/on-boot-script)
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2. PiHole persists through firmware updates. The on-boot script does not. If you update your FM setup on-boot again and everything should work.
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### Customization
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* Feel free to change [20-dns.conflist](https://github.com/boostchicken/udm-utilities/blob/master/nextdns/udm-files/20-dns.conflist) to change the IP address of the container. Make sure to update all ip references and the iptables rules in [on_boot.sh](https://github.com/boostchicken/udm-utilities/blob/master/nextdns/udm-files/on_boot.sh). The IP address can be anywhere from x.x.x.3 to x.x.x.254. .1 is reserved for the gateway and .2 is reserved for the macvlan bridge.
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* If you don't want to use vlan5, just replace br5 with br(vlanid) in [on_boot.sh](https://github.com/boostchicken/udm-utilities/blob/master/nextdns/udm-files/on_boot.sh) and [20-dns.conflist](https://github.com/boostchicken/udm-utilities/blob/master/nextdns/udm-files/20-dns.conflist), also update all the ips accordingly
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### Docker
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The Dockerfile is included, you can build it locally on your UDM if you don't want to pull from Docker Hub
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```
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podman build ./Dockerfile -t nextdns-udm:latest"
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```
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### Steps
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1. On your controller, make a Corporate network with no DHCP server and give it a vlan. For this example we are using vlan 5.
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2. Install the CNI plugins with by executing [install-cni-plugins.sh](https://github.com/boostchicken/udm-utilities/blob/master/nextdns/install-cni-plugins.sh) on your UDM
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3. Copy [20-dns.conflist](https://github.com/boostchicken/udm-utilities/blob/master/nextdns/udm-files/20-dns.conflist) to /mnt/data/podman/cni (or a place of your choosing and update [on_boot.sh](https://github.com/boostchicken/udm-utilities/blob/master/nextdns/udm-files/on_boot.sh) symlink). This will create your podman macvlan network
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4. Update your on_boot.sh to include the commands in [on_boot.sh](https://github.com/boostchicken/udm-utilities/blob/master/nextdns/udm-files/on_boot.sh). You can leave out the iptables rules if you don't want to DNAT all DNS calls to your PiHole
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5. Execute on_boot.sh
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5. Make /mnt/data/nextdns and copy [nextdns.conf](https://github.com/boostchicken/udm-utilities/blob/master/nextdns/udm-files/nextdns.conf) to it.
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6. Run the nextdns docker container. The mounts are very important. Also please change the --dns arguments to whatever was provided by NextDNS.
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```
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podman run -d --network dns \
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--name nextdns \
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-v "/mnt/data/nextdns/:/etc/nextdns/" \
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-v /var/run/dbus/system_bus_socket:/var/run/dbus/system_bus_socket \
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--mount type=bind,source=/config/dnsmasq.lease,target=/tmp/dnsmasq.leases \
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--dns=45.90.28.163 --dns=45.90.30.163 \
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--hostname nextdns \
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boostchicken/nextdns-udm:latest
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```
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8. Update your DNS Servers to 10.0.5.3 (or your custom ip) in all your DHCP configs.
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