Huh. The Remarkable2 tablet has a USB port for charging, but if you plug it into a PC it shows up as an ethernet adapter.
So then you can SSH into it.
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that's an interesting approach to PC connectivity. Why be a serial port or a mass storage device when you can just be ETHERNET, with a virtual network to the tablet.
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info from here:
https://github.com/danielebruneo/remarkable2-hacks
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the SSH is also weird: It's not a fixed password. It apparently generates a random password, and if you go into the menus (Menu->Settings->Help->Copyright and licences) it'll tell you the SSH password it generated
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I guess that's a good (or at least not terrible?) way to do it. It's slightly more secure, you're not going to get hacked by someone SSHing into your tablet because you're on their wifi, but anyone with physical access can SSH in if they need to
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still you could have skipped all of this and just made it a serial port. you don't need authentication if it's a serial port.
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you will not regret giving your USB device a serial port
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I guess doing it this way makes it possible to reuse the same functionality to connect to the device from both wifi and USB? Since it's just some kind of linux machine.
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@foone and it means you can scp and rsync without anything fancy.
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@tithonium good point
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@tithonium @foone and they have a built in web server that runs on that interface to drag&drop files between the device and your big computer
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@jpm @tithonium @foone How well does the USB ethernet approach play with typical OS network configuration? Is there a DHCP server that assigns an address without a default route? Does it interfere with normal real network traffic? What if the assigned address collides with something on existing real LAN?
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@jpm @tithonium @foone The reason I ask os that I've wanted to try the same (actually bluetooth ethernet) for device control from phone, but was worried about problems like this.
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@dalias @jpm @tithonium @foone I assume it uses a zeroconf address: https://en.m.wikipedia.org/wiki/Zero-configuration_networking
Remember that the "Ethernet" device here isn't connected to your actual network, it's just a protocol over USB. You can do this with a Raspberry Pi Zero, too: https://learn.adafruit.com/turning-your-raspberry-pi-zero-into-a-usb-gadget/ethernet-gadget
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@dalias @jpm @tithonium @foone also this is all in the kernel so it's probably effectively free for them to enable on the remarkable
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@tedmielczarek @jpm @tithonium @foone Right, but clashing address would still prevent you from accessing the same-address device on LAN. Zeroconf sounds kinda viable but slow to come up waiting for DHCP to timeout, no? IPv6 only would be ideal but I doubt they were brave enough to do that..
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@dalias @jpm @tithonium @foone With NetworkManager you can just give it a "shared" profile and it runs a DHCP server and sets up appropriate routing automatically. Then you can access the device without checking its IP over mDNS.
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@dalias
The device always gets 10.11.99.1 and the computer always gets 10.11.99.2 (IIRC) across the usb network interface
@jpm @tithonium @foone
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@tithonium @foone It also makes it easy to put it on Tailscale so that you can SSH into it even if both the reMarkable and your laptop are on a network that blocks direct connections between them.
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@foone if you have physical access, how long does it take to bypass the screen lock?. That might be the answer.
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@foone I used to use the web interface using wifi all the time. Occasionally I would ssh into it too. But at some point someone had the bright idea to disable this interface at every reboot and the setting to enable it shows up only after plugging the remarkable using a usb.
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@foone I got halfway through doing this with my phone before realizing I had no way to photograph it
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@foone is this firewire
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@emily yes, that's definitely firewire
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@emily nice!
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