Universally unique identifier

You can actually see this at this directory.

And on the website, if you look, this is a live reload you can see the explorer picture went ahead and fed in there so within you know five to ten seconds i'm able to really make snapshots and create uh screenshots and put them all in here in seconds instead of maybe a minute on a traditional website where you'd actually submit the file and then have to move it around or if you're trying to do it manually through markdown it's it's even worse so that's kind of where this is and just one of the powerful things about it but let me show you another use case let's say i'm in fstab a lot of times it uses uud and i want to grab one of the uds from the the other one so what i can do is actually go into standard mode retrieve and then just go blkid pulling all my UUIDs for all my devices so this is really powerful on servers or headless systems because normally you'd have to write it down or maybe you could use like click paste or something like that to do a copy and then feed it directly in through a paste but this is just so much easier so let's say I wanted to grab the UUID for P1 right here which It's all right there, you can see, but let's say I just wanted to isolate this down.

I can just grab everything in this block, yank it, and then just say, you know what, I'm going to create a whole new entry with this UUD and just go UUD equals that, bam, paste it in, and then start going.

so much better than having to type all this crap in and all this without having to mess with it.

But even more so, the disabled global device identifier, a lot of people were talking about this.

I know there was a tweet by, I think it was Dave Plummer, where he incorrectly said it was UUID and Microsoft doesn't track.

That's incorrect.

There is a GDID.

So we're just going to go back to fstab here.

And you'll see our UUID equals that number we copied.

We paste that in.

And then we do root media data.

And I said to Copa, look, anything that's a database hit when we're dealing with really, really large volumes of data, we have to be cautious with.

Because if we're using a GUID and we're taking that GUID and we go into the database and say, give me the record for this GUID, even if we cache the result, if someone just starts enumerating GUIDs, then that's a problem because then you can just start hammering the database, query after query after query.

So it went, well, we'll just chuck it in a cryptographic wrapper.

We'll take that GUID, we'll encrypt it, chuck it in the email.