• 2 Posts
  • 36 Comments
Joined 2 years ago
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Cake day: June 11th, 2023

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  • Maybe I am not thinking of the access control capability of VLANs correctly (I am thinking in terms of port based iptables: port X has only incoming+established and no outgoing for example).

    I think of it like this: grouping several physical switch ports together into a private network, effectively like each group of ports is it’s own isolated switch. I assume there are routers which allows you to assign vlans to different Wi-Fi access points as well, so it doesn’t need to be literally physical.

    Obviously the benefits of vlans over something actually physical is that you can have as many as you like, and there are ways to trunk the data if one client needs access to multiple vlans at once.

    In your setup, you may or may not benefit, organizationally. Obviously other commenters have pointed out some of the security benefits. If you were using vlans I think you’d have at a minimum a private and public vlan, separating out the items that don’t need Internet access from the Internet at all. Your server would probably need access to both vlans in that scenario. But certainly as you say, you can probably accomplish a lot of this without vlans, if you can aggressively setup your firewall rules. The benefit of vlans is you would only really need to setup firewall rules on whatever vlan(s) have Internet access.




  • Didn’t get a chance to look at how your app works under the hood, but for LASIM I look up the community by name to get the ID and then call thr subscribe API. The former did seem to trigger the Lemmy instance to “learn” about the community, but it takes awhile, and there is no way to know when it has learned it other than to retry looking it up a few times.




  • I saw this complaint in another post online (paraphrased):

    The screen and use of a Pi seem at odds with each other. The screen is ultra-low power, but there are of course huge drawbacks for usability. Meanwhile the CPU is very powerful, but chews through, comparatively, a lot of power quickly.

    They argued that it would be better to either pair the Pi with a better screen for a more powerful/usable handheld, or go all in on longevity and use some kind of low-power chip to pair with the screen for a terminal that could last for days.

    … I’ve got to say, it’s a fair point. A low power hand-held that could run Linux and run for days would be pretty cool, even if it was underpowered compared to a Pi. No idea what you could use for such a thing though.