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smiletolerantly @awful.systems
Posts 4
Comments 216
How would I go about gaining access to a locked-down Linux device I own.
  • Thanks! Yep, same thought about the version checks. I'll spin up a VM for now and see if that allows for suitable experimentation, otherwise fingers crossed I don't brick the device.

    The web-server thing is probably safer, agreed, but packaging my own update is just so much more tempting... :D

  • How would I go about gaining access to a locked-down Linux device I own.
  • Fantastic.

    Since the zip also includes a bunch of shell scripts, I think it's possible I could also just install ssh directly - but the image will certainly make experimenting in a VM the safer option until something works out... ^^

    Oh man, I can't wait to get home from work on Friday (currently stuck on the other side of the country 🫠)

    Edit: also, can I somehow buy you a beer/coffee somewhere digitally?

  • How would I go about gaining access to a locked-down Linux device I own.
  • No way!! You're the goat. I spent the day trying to get behind how the cracking worked by making simple examples, and you just... Solve the puzzle :D

    Awesoms, thank you so much!! I'll appreciate update this thread if this leads to something :D

  • How would I go about gaining access to a locked-down Linux device I own.
  • Oh, wow. I am so giving this a try. Huge kudos for checking the zip itself, btw! Thank you :D

    Just for clarification though, do I need 12 bytes of the original content or of the compressed (but unencrypted) byte-representation of the zip file?

    Edit: Ah, the repo links the paper. Reading now :)

  • How would I go about gaining access to a locked-down Linux device I own.

    Five years ago, I bought a Supernote A5. It was (and mostly still is) a great device for reading and writing on an eInk display, and it runs plain old linux.

    The deciding reason I went for this device instead of the competition is that I was "under the impression" that they were about to enable full SSH access to the device! Awesome!

    "Why were you under that impression?", I hear the skeptics ask. Well, their spokesperson has stated that they would do so. Via mail, and on reddit, publicly, multiple times. I was still torn, so sent them a DM, asking if this was ineed factual. "Yes", they said, "the next quarterly update will enable SSH access!".

    Great!

    Well, it's been 5 years. They did not follow through. A couple updates were published, none contained the promised functionality, the spokesperson stopped answering questions about SSH. The last software update I received is from 2.5yrs ago. Mentions of the original Supernote A5 have largely been scrubbed from their website.

    Let me be clear, the device still functions perfectly. But it is in danger of becoming e-waste because it is so needlessly complicated to get stuff on the device. I'm currently in need of an ebook reader with (ideally) OPDS capability, and I am pretty confident I'd be able to get something like koreader running on this, or at least just run a script to sync files over SSH. Also, I frankly feel wounded in my pride having a Linux device in my possession which refuses to do my bidding (I'm joking of course, but also I am 100% serious).

    Here's all I know:

    • plugging it in via USB, the device reads as an MTP device, with access only to the documents/books/... stored on it
    • you can place an update.zip file (obtained from the SN website) into the root of that MTP directory, and upon reboot, the device will update. To me, this appears to be the most promising route of gaining access.
    • unfortunately, the zip file is encrypted. The decryption key clearly has to be known to the device, but since I have no access to it,...

    I'm a software engineer, but I have zero knowledge of the "dark arts", so to speak. If anyone could help me (or point me into the right direction!), I would really be grateful. I don't want this (generally nice) product to turn into a paperweight instead of a paper replacement :(

    32
    Tasks and Calendar and CalDAV... why not?
    • Radicale hosts my calendars and contacts
    • zero-hassle setup in Thunderbird for both of those things
    • DAVx on Android works seamlessly for calendar and contacts Sync
    • Fossify calendar to view, edit calendar
    • default contact app for contacts
    • Infcloud as a web frontend for Radicale. Not pretty, but absolutely functional (and I hardly ever need it thanks to Android calendar app / Thunderbird)

    Haven't tried todo lists yet, but I would imagine they are similarly hassle-free.

    The only annoyance I have is that DAVx is required at all, but I'd suspect that's an Android/Google issue? IDK.

    But anyways, this setup works flawlessly for me.

  • Tasks and Calendar and CalDAV... why not?
    • Radicale hosts my calendars and contacts
    • zero-hassle setup in Thunderbird for both of those things
    • DAVx on Android works seamlessly for calendar and contacts Sync
    • Fossify calendar to view, edit calendar
    • default contact app for contacts
    • Infcloud as a web frontend for Radicale. Not pretty, but absolutely functional (and I hardly ever need it thanks to Android calendar app / Thunderbird)

    Haven't tried todo lists yet, but I would imagine they are similarly hassle-free.

    The only annoyance I have is that DAVx is required at all, but I'd suspect that's an Android/Google issue? IDK.

    But anyways, this setup works flawlessly for me.

  • Self-Hosted setup for remote music lessons?

    Basically, the title. After years of inactivty, I'll be taking music (cello) lessons again, with my teacher of yesteryear, from whom I've moved half a country away.

    She has suggested Zoom but is open to alternatives. I don't particularly like Zoom, plus I have a feeling better quality can be had through a custom solution - but I'm at a bit of a loss as to what exactly would be a good fit for this project.

    Maybe Jitsi? Does someone here have experience with it and could tell me if it's possible to set something like a "target" audio quality?

    For hardware, I basically have two options. Both are already in use, for different things, and have sufficient processing capabilities - albeit no GPU:

    • host everything at home. Plus: lowest possible latency from me to the server. Not sure how much that is worth though.
    • root server in the Hetzner cloud: much faster network speed. Again though, not sure how beneficial that is, the ultimate bottleneck will always be my upload speed (40Mbit)

    OK, I realize that this post is a but of a random assortment of thoughts. I'd be really happy about suggestions and / or hearing about other's experiences with similar use-cases!

    33

    Can someone rule-splain this

    cross-posted from: https://lemmy.ca/post/25155152

    > - > - Author: /u/Ok_Astronomer_9326 > - Link Shared on Reddit > - Original Reddit Comments >

    12

    Can't use Crunchyroll via WireGuard

    Hi,

    not sure where else to post this. For a while now, I've unsuccessfully been trying to get WireGuard to work with Crunchyroll.

    Setup is as follows:

    • dedicated server hosts a wg-quick instance in [neighboring country]
    • OPNSense acts as peer on a single IP
    • I have a rule for routing the entire traffic of some source device via that IP

    This works just fine. Handshake successful, traffic is routed via the server. traceroute shows the server as the hop immediately after my device's local gateway. The connection is stable, and fast.

    ...except for Crunchyroll. The site / app itself is fine, but I can not, for the life of me, get a video to play. It just keeps loading forever.

    I don't think this is an issue with CR recognizing that I'm not where I say I am - looking online, it seems pretty easy to use CR with a VPN. I've also tried from multiple other devices, all with the same symptom.

    If anyone has suggestions, I'd love to hear them 😅

    EDIT: It was MTU. Had to manually set it to 1500 on both devices.

    Nope, still the same issues. I was using the fallback interface there briefly.

    EDIT: It WAS MTU related, I had to enable MSS clamping on the OPNSense.

    19