TrueNAS replication over Netbird

Software & Web Applications
1

Hello
I have my main backup server running truenas scale at home, and two remote (soon three) at friends and family. We are trying to get some kind of buddy backup but I’m stuck at replication over Netbird. TrueNAS servers can ping each other using netbird IP, but not their Netbird FQDN. I tried putting 127.0.0.1 as a DNS in my TrueNAS, but it refused (Loopback is not a valid DNS server). What should I do? Netbird is selfhosted if it changes anything.
Also found some tutorials on YT, but they do replication over Netbird IP addresses. I’m not sure if those won’t change (which is beyond my control) so I’m hesitant to do it that way.

2

I am not aware if any official packages for Netbird that will work on TrueNAS. My assumption is that you loaded Netbird but it’s not binding to the TrueNAS IP and I am not sure how to do that.

3

I installed netbird as custom app:

name: netbird
services:
  netbird:
    cap_add:
      - NET_ADMIN
    environment:
      - NB_SETUP_KEY=HEREWASTHEKEY
      - NB_MANAGEMENT_URL=https://mynetbirdmanager.cc
    image: netbirdio/netbird:latest
    network_mode: host
    restart: always
    volumes:
      - /mnt/nvme/docker/netbird-client:/etc/netbird
volumes:
  netbird-client:
    external: True
    name: netbird-client

I can access GUI over netbird, when i log into TrueNAS console, I can ping other netbird clients by their netbird IP, but not their Netbird hostnames