this post was submitted on 01 Nov 2024
43 points (97.8% liked)

Selfhosted

40296 readers
225 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago
MODERATORS
 

Hello,

Just spent a good week installing my home server. Time to pause and lookback to what I've setup and ask your help/suggestions as I am wondering if my below configuration is a good approach or just a useless convoluted approach.

I have a Proxmox instance with 3 VLAN:

  • Management (192.168.1.x) : the one used by proxmox host and that can access all other VLANs

  • Servarr (192.168.100.x) : every arr related software + Jellyfin (all LXC). All outbound connectivity goes via VPN. Cant access any VLAN

  • myCloud (192.168.200.X): WIP, but basically planning to have things like Nextcloud, Immich, Paperless etc...

The original idea was to allow external access via Cloudlfare tunnel but finally decided to switch back to Tailscale for "myCloud" access (as I am expected to share this with less than 5 accounts). So:

  • myCloud now has Tailscale running on it.
  • myCloud can now access Servarr VLAN

Consequently to my choice of using tailscale, I had now to use a DNS server to resolve mydomain.com:

  • Servarr now has pihole as DNS server reachable across all VLAN

On the top of all that I have yet another VLAN for my raspberry Pi running Vaultwarden reachable only via my personal tailscale account.

I'm open to restart things from scratch (it's fun), so let me know.

Also wondering if using LXCs is better than docker especially when it comes to updates and longer term maintenance.

you are viewing a single comment's thread
view the rest of the comments
[–] curbstickle@lemmy.dbzer0.com 2 points 2 weeks ago (1 children)

You dont need to have the same subnet on different vlans. You also dont need them to each have a router, that isn't how this works.

Each VLAN gets a gateway, in a subnet accessible within that VLAN.

Under no circumstances do you need a separate physical router for having 2 VLANs on the same network. That's not how VLANs work.

[–] teslasaur@lemmy.world 1 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

The poster i was responding to equated subnetting to vlans. I might have misunderstood what they meant though. It sounded like they wanted to use the same subnet per vlan, which wont work if you want them routed in the same gateway.

Reading it again they make it sound like you can't subnet all of these networks on a switch without vlan, which you definitely can. I could for example connect 4 different devices on the subnet 192 168.10.x/24 and have them reach each other. I could also connect 4 more devices in the same switch but on a different network 192.168.20.x/24 and it would work.

[–] curbstickle@lemmy.dbzer0.com 1 points 2 weeks ago (1 children)

You were responding to me, and I most definitely didn't equate the two. Maybe you meant to respond to someone else.

In any case, you can route between vlans (and subnets), but without a route you aren't communicating between those vlans or.between subnets.

Also, you can have multiple subnets in a vlan, but you can't have a single subnet across vlans.

The range (x.x.10.x and x.x.20.x from your example) is only the subnet side, you could have both of those subnets in one vlan. But you could not, for example, have x.x.10.x/24 exist in vlan 10 and vlan 20.

[–] teslasaur@lemmy.world 1 points 2 weeks ago

Sorry about my confused rambling 😅 Yes, the example was to demonstrate the difference between subnetting and vlan. Albeit simplified. What you said is right.