johnvaluk · HackerTrans

The older Intel-based Dell XPS 13 machines have the same footprint as some 11 inch Chromebooks. Some models have thermal quirks that cause a shutdown, which is easily addressed by lowering the CPU frequency. Battery life is pretty good (but I replaced the batteries before I realized the CPU issue was the culprit).

johnvaluk

18天前讨论

There are a lot of old Chromebooks with only 2GB of RAM soldered to the motherboard. Other than that, they're surprisingly capable machines after you flash them with MrChromebox firmware.

johnvaluk

去年讨论

Is it possible to override shellcheck? It's a valuable tool that I use all the time, but it reports many false positives. It's not unusual for junior developers to introduce bugs in scripts because they blindly follow the output of shellcheck.

johnvaluk

2年前讨论

And a CLI you can use interactively or for automation (once you get the quoting right).

johnvaluk

3年前讨论

Like any documentation system, its success depends on its audience.

As an administrator, I wish MediaWiki had a built-in updater (bonus points if it could be automated).

johnvaluk

3年前讨论

Can you describe the fix?

johnvaluk

3年前讨论

This isn't fair. Researchers put an extraordinary burden on administration in an academic institution. Research by its very nature is cutting edge and is always testing limits. "I want it now!" ignores existing streamlined processes and administration often provides value by enforcing compliance. This kind of oversight also minimizes a lot of abuse.

johnvaluk

3年前讨论

Yes, your local agent can be accessed on the destination host by any other user with the necessary privileges (including your own account -- a root compromise is not required). This has been known for a very long time and a warning is included in the documentation. No, it does not compromise any private keys.

Your private keys are more likely to be compromised when you store them on untrusted systems. SSH-Agent allows you to avoid that risk.

Another mitigation is to use a dedicated agent per private key (or group of keys) to prevent forwarding keys to destinations that don't need them.

SSH agent restriction (ssh-add -h) looks promising, but support isn't widespread and it doesn't cover all use cases.

The article assumes a remote attacker, but the attacker can more easily be your boss or team. Keep this in mind whenever you forward your agent and plan accordingly.

johnvaluk

3年前讨论

SSHFS provides enormous value precisely because it doesn't rely on configuring a file server or elevated privileges. It's convenient, secure and performs well. The ability to create ad hoc mounts for any remote location I can access via SSH is awesome (though I prefer rsync or scp for file transfers).

But relying on SSHFS in production... Yeah, that's insane.

johnvaluk

3年前讨论

This is a nice guide.

In my experience, it isn't necessary to configure ChromeOS by logging into a Google account after enabling Developer Mode, if you simply want to ditch ChromeOS and flash the UEFI firmware. Just press ctrl+alt+F2 to get a shell, login as chronos (no password), then type `sudo bash` or `sudo -s` to get a root shell.

In addition to the other recommended distros, NixOS runs well on all my converted ChromeOS devices.

It's a great way to get continued use out of hardware that no longer receives ChromeOS updates. Even underpowered devices can be appealing for some tasks because they're lightweight and fanless.

johnvaluk

3年前讨论

Great novel. It's a shame the author never gave it a title. /s

johnvaluk

3年前讨论

I started refusing local anaesthetic for dental procedures when I was teenager. I discovered the pain of the procedure itself (such as drilling a cavity) was the same, but I was spared the pain of the injection and lingering numbness afterwards. I was happy to leave my appointments alert and pain-free.

I imagine any color light or other type of distraction would provide the same results. It's not even a placebo effect, so much as the fact that a lot of these procedures are well within most people's pain tolerance and/or can be over in a minute.

I gladly went under general anaesthesia to have my wisdom teeth removed, however.

johnvaluk

5年前讨论

Note that seasoning cast iron has nothing to do with flavor. It refers to the coating that develops after seasons of use. The primary benefit is that it prevents rust. A very nice side effect is that food tends to stick to it less. Seasoning is best accomplished in a controlled environment, but it's also fine to just start using it (with oil) and lightly clean without soap after use. Eventually, it might start to develop a useful coating in key areas.

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