![]() # The following is an example of downloading all SSH keys for a GitHub user, replace `rickmark` with your username. $ echo "\nChallengeResponseAuthentication no" > /etc/ssh/sshd_config # Disable Challenge-Response authentication ![]() $ echo "\nPubkeyAuthentication yes" > /etc/ssh/sshd_config The example below just downloads my SSH public keys from my GitHub account, but you could also have downloaded your public key in the browser or moved it to the device via a flash-drive. You can perform the following steps from a SSH connection to the device, a local VT-2 terminal ( ) or from a crosh shell prompt ( ). If you are OK with password based auth because the network is relatively private, you can skip this step. ![]() A device with Developer Mode and Debugging Features will already be running this sshd by default, but it uses password authentication. Now that the device is effectively “rooted” as in an Android device would be (you have a working root account and mutable filesystem), it’s time to setup the remote SSH server. You can always try the default of test0000 and if that doesn’t work, powerwash and re-enable debugging features. I’ve also noticed that updates sometimes break R/W filesystem and reset the root / chronos password. After entering developer mode, select “ Enable debugging features” on the first screen of the setup process and set a password ( ). The instructions for this vary by device and I find it is just easier to refer you to Google / Chromiums instructions (here ). Entering Developer Mode and Debugging FeaturesĬhrome devices can be put into “ Developer Mode” which is a configuration which allows running the operating system that has been modified in such a way that it is no longer in the most secure configuration. Restore the ChromeOS configuration to the non-Developer version before re-using the device for any other purpose. Big Scary - Much Dangerīecause this guide is showing you how to disable security protections in ChromeOS, and that it will make the browser remotely (albeit with a generally safe SSH configuration) accessible, I do not recommend logging into this Chrome device with your actual Google account or using it as anything other then a test device. I settled on using jsdom and webusb from NPM for lightweight local testing, and the following to remotely drive tests via the Chrome DevTools protocol to a Pixelbook Slate. Moreover I really wanted to target WebUSB from a Chromebook as an ideal test case. As I was working with this, developer ergonomics and testing became very important, and unlike a regular website “headless” testing was infeasible because of the reliance on WebUSB which is a full browser feature. Recently I’ve been working on using Chrome and WebUSB to communicate with Apple iPhone/iPads which implement the usbmuxd protocol.
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