TheDevil

I use an N5105 generic mini pc running proxmox and opnsense. You can get them fairly cheaply from Aliexpress. They’re particularly low power and come with 4-6 gigabit network ports. I have two containers, the second of which hosts my Home Assistant instance. As an added bonus they often don’t have a fan.

For wifi I use Ubiquity wifi 6 Lite APs with the controller running under home assistant.

You can ignore the windows machine unless it’s using nfs, it’s not relevant.

Your screenshot suggests my guess was incorrect because you do not have any authorised Networks or Hosts defined.

Even so if it was me I would correctly configure authorised hosts or authorised networks just to rule it out, as it neatly explains why it works on one container but not another. Does the clone have the same IP by any chance?

The only other thing I can think for you to try is to set maproot user/group to root/wheel and see if that helps but it’s just a shot in the dark.

The two docker containers can access the share, but the new proxmox container can’t?

The new proxmox container will have a different IP. My guess would be that the IP of the docker host is permitted to access the nfs share but the ip of the new proxmox container is not.

To test, you can allow access from your entire lan subnet (192.168.1.1/24)

Edit: For reference see: https://www.truenas.com/docs/scale/scaletutorials/shares/addingnfsshares/#adding-nfs-share-network-and-hosts

In particular: If you want to enter allowed systems, click Add to the right of Add hosts. Enter a host name or IP address to allow that system access to the NFS share. Click Add for each allowed system you want to define. Defining authorized systems restricts access to all other systems. Press the X to delete the field and allow all systems access to the share.

If your only goal is working https then as the other comment correctly suggests you can do DNS-01 authentication with Let’s Encrypt + Certbot + Some brand of dyndns

However the other comment is incorrect in stating that you need to expose a HTTP server. This method means you don’t need to expose anything. For instance if you do it with HA:

https://github.com/home-assistant/addons/blob/master/letsencrypt/DOCS.md

Certbot uses the API of your DDNS provider to authenticate the cert request by adding a txt record and then pulls the cert. No proxies no exposed servers and no fuss. Point the A record at your Rfc1918 IP.

You can then configure your DNS to keep serving cached responses. I think though that ssl will still be broken while your connection is down but you will be able to access your services.

Edit to add: I don’t understand why so many of the HTTPS tutorials are so complicated and so focused on adding a proxy into the mix even when remote access isn’t the target.

Cert bot is a shell script. It asks the Lets Encrypt api for a secret key. It adds the key as a txt record on a subdomain of the domain you want a certificate for. Let’s encrypt confirms the key is there and spits out a cert. You add the cert to whatever server it belongs to, or ideally Certbot does that for you. That’s it, working https. And all you have to expose is the rfc1918 address. This, to me at least, is preferable to proxies and exposed servers.

Not that I don’t love Ubi but OPNsense and pfsense will also handle failover:

https://docs.opnsense.org/manual/multiwan.html

This is also possible within Linux, Windows and *BSD by just adding both possible routes and weighting them accordingly:

https://serverfault.com/questions/226530/get-linux-to-change-default-route-if-one-path-goes-down

Yes. Depending on your network configuration you could consider using cellular data as a backup form of connectivity.