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Joined 2 years ago
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Cake day: June 14th, 2023

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  • Btw: does anybody know what bad things actually happen if there is no metal cage that blocks all the radio?

    Noise happens. Could be no problem, or it could hurt your wifi or mobile data connections, or maybe raise a neighbor’s ham radio noise floor. I saw this recently when setting up a pi to run BirdNet-Pi. The USB3 connection to an SSD caused enough noise in the 2.4GHz band that the onboard wifi radio could only connect on the 5GHz band.


  • To start - moving services from bare metal to rootless Podman containers running via quadlets. It’s something I have had in mind for a while but keep second guessing the distro choice. Long-ish release cadence, systemd-networkd and a recent Podman version in the native repos, well supported, and not Ubuntu.

    So far openSUSE Leap seems like the winner. A testing machine is up to install everything, write some deployment scripts, and decide on a storage layout and partitioning scheme.

    If anyone has another distro to recommend that checks these boxes let me know!

    I like rolling release for the desktop, but only want critical patches in any given month for this server, and a major upgrade no more than every 3-4 years. Or an immutable server distro. But it doesn’t seem like networkd is an option for the ones I’ve looked at (Fedora CoreOS, openSUSE MicroOS), and I am not sure if I want to figure out Ignition/Combustion right now.

    Next project - VLANs on Mikrotik.

    OP - Navepoint makes good racks for reasonable money. I have a Pro series 9u from them and it went together without any problems. It’s on the wall with a pretty big ups in it.


  • If you want to keep using networkd, you might want to consider if multiple interfaces are causing the wait. NM doesn’t care, but networkd gives more granular options for dependencies. If you have wired and wireless and only one in use the systemd-networkd-wait-online.service waits for a timeout period. You can find lots of info on it related to boot delays with that service.

    Try the --any switch on the systemd-networkd-wait-online.service launch configuration. This will tell the wait-online service that any single routable interface is enough, you don’t need them all.

    Run:

    sudo systemctl edit systemd-networkd-wait-online.service

    That adds the override.conf for the service. Add these lines:

    [Service]
    ExecStart=
    ExecStart=/usr/lib/systemd/systemd-networkd-wait-online --any
    

    The other possibility is if you have virtual .netdev devices configured (VPN, bridging, etc) and some of them are not essential for the machine to be online, you can set RequiredForOnline=no on the ones that aren’t essential.







  • Here’s my messy-cabled 9u rack.

    Image

    It has:

    • Fiber gateway out of view on top of the rack.
    • Switch, which also powers 2 Ruckus APs and 2 other switches.
    • Mikrotik RB5009 router.
    • Raspberry Pi x3 all running Debian Bookworm. I have too many pis right now, running Home Assistant, LibreNMS, Log collection, and a read-only NUT server that orchestrates shutdowns and startups on power loss. I need to consolidate these.
    • 1L PCs. One is on Debian serving media and files. The other is a test server where I’m trying out Immich on openSUSE. I’m considering moving to that and rootless podman for services. To that end I have another of these 1L boxes on my desk trying other options (MicroOS, Fedora IoT, maybe others).
    • HDs. These are backup drives for the 1L server. I keep them powered off except when needed.
    • UPS and a managed, switched PDU.

    Everything is set up for low energy consumption (~90w), remote admin, and recovery from power loss.



  • If you’re buying new cameras they’ll be 802.3af PoE. Passive is becoming much less common. So that model router I linked would work great.

    I think if you’re a moderately technically inclined person you would be happy with that solution. If you are intimidated at the idea of writing or adapting some scripts, I would probably recommend a router on one of the other platforms plus a PoE switch.


  • The easiest part of your requirements are the custom DNS records. All of the platforms recommended so far can do this. OpenWRT has the advantage of WiFi capabilities. If you want the router to also be your WiFi access point then it may be your best option. But it sounds like you only need it to be a wired router, which is good.

    As far as the ad blocking, I have done this with pi-hole, and with the built-in DNS and block capabilities of OpenWRT, Mikrotik and OPNSense. They are all fine. The router ones don’t have the fancy web UI like pi-hole. So if you use that a lot you will be disappointed. Mikrotik’s is the most basic and a new feature for them, but they are actively developing it. Plus their current routers can run containers, so you can run pi-hole on the router as a container if you want.

    PoE ports as a requirement is what narrows your options considerably I think. You could get that from a separate switch. If you want that in the router itself then you have very few options.

    Mikrotik has a lot of routers with PoE out. Their newest model in the RB5009 series can do either passive or 802.3af/at PoE out. Many of their older routers have passive PoE only. Make sure you know what your cameras need.

    I had similar requirements as you and got this: https://mikrotik.com/product/rb5009upr_s_in

    It has PoE out available on all 8 Ethernet ports. The default 48v power supply works with 802.3af/at PoE. It is a 96 watt supply, and can support ~76 watts of PoE downstream. If you need passive PoE then you would need to change to a 24v power supply.

    Mikrotik RouterOS requires some learning to use its advanced features, but their quick setup defaults are good. And the platform is super reliable and flexible.

    For DNS you would use their Adlist functionality along with a script similar to the one from BartoszP in this thread to enable DNS name resolution for lan hosts: https://forum.mikrotik.com/viewtopic.php?t=181640. That script is added to the DHCP server config to run when each client gets an address lease. And then you would add static name records in IP / DNS / Static for the other host.domain names you want your lan devices to connect to by name which can’t be resolved via your upstream DNS server.


  • That SATA port is what you need. You can use that to connect an external eSATA drive enclosure (external jbod).

    For a clean install, get a SATA to eSATA adapter - the kind with an expansion slot plate. Something like a STCESATAPLT1LP. Unscrew the eSATA end from the plate, cut a matching hole in the PC case and mount the port to the hole. This is better than going straight from the internal port in my opinion.

    It looks like you have a mini-PCIe slot as well, probably intended for WiFi. That may work with an mSATA to SATA adapter to give you a second port. Or it may work with an mSATA SSD. I would test with something cheap or get confirmation it works from other users of this PC before investing in an expensive SSD.