AdGuard Home : Synchronise two instances (GL.iNet & à docker one on another server)?

[MilesTEG]

Hello,
I want to use AdGuard Home on Flint2 (after updating it to the latest version with a script found on this forum) but I want a fallback on an another server on my LAN in a docker container.

But I want the two AdGH servers to be synchronised.

I’ve done such a thing between two docker container with AdGuard-sync but I don’t know how to do the same with the instance on my flint2.

Can somebody help me ?

Thanks in advance

[bruce]

Probably it like

1. Both install the AdGuard-Sync
2. Configure DNS Fallback in Flint2 AdGuard Home, set the Docker as a fallback DNS server, and vice versa.
3. Check firewall rules to allow traffic between the two AdGuard Home instances.

Would like to hear suggestions from other users.

[MilesTEG]

I may try to do that.
But for now, I just try the AdGuard Home on the Flint2 after synching from a docker container. Not entirely successful.

But why the DNS response time is so high?

In comparaison, the instance I have on a docker proxmox VM:

How can I clean the Flint2 installation to start from scratch?

[bruce]

@MilesTEG

How can I clean the Flint2 installation to start from scratch?

Reset to factory settings.

@MilesTEG

why the DNS response time is so high?

I also feel weird about the DNS response time, did the router enable the VPN client?

[MilesTEG]

@bruce

@MilesTEG

How can I clean the Flint2 installation to start from scratch?

Reset to factory settings.

Ouch, resetting the whole router only for adguard... I don't know if I want AdGH this much on the Flint2...

@bruce

@MilesTEG

why the DNS response time is so high?

I also feel weird about the DNS response time, did the router enable the VPN client?

If by "VPN client" you mean the router in client for a VPN, no.
But I set up Wirfeguard and OpenVPN server on the router, and some clients connect to it.

[bruce]

If the same DNS IP address of GL router and NAS docker, it is not supposed to be such a big difference between them.

As the DNS from NAS docker ADG -> LAN -> GL Router -> WAN -> out, and DNS from the LAN -> GL Router ADG -> WAN -> out, they are close to.
Self-check please, as I did not quit know the topology.

[admon]

You can reset AGH without resetting the whole router - if you know what you are doing. But it requires SSH access and knowledge.

[MilesTEG]

Hello,

@bruce

If the same DNS IP address of GL router and NAS docker, it is not supposed to be such a big difference between them.
As the DNS from NAS docker ADG -> LAN -> GL Router -> WAN -> out, and DNS from the LAN -> GL Router ADG -> WAN -> out. Self-check please, as I did not quit know the topology.

I don't understand what you said

@admon

You can reset AGH without resetting the whole router - if you know what you are doing. But it requires SSH access and knowledge.

I know how to use ssh access and ssh commands.
But I don't know what to delete

[admon]

Everything is stored in /etc/AdGuardHome/
Removing the data folder should be sufficient - but maybe you need to adjust the config.yaml as well.

[bruce]

Dual ADG instances configuration may seem difficult. Would like to ask why you need this?

[MilesTEG]

Hello
I want to have a backup dns server in case if the primary fails .

I can do that without problem with two docker AdGH on two differents machines.

I’ll try to remove the data folder as @admon said.
But for the config.yaml , us there somewhere a vanillia file (without any modifications) ?

[bruce]

config.zip (1.3 KB)
Export from the MT6000, ADH v0.107.46

[MilesTEG]

Hello,
Thank you very much
The only thing I lack, now, is time