This is dated 2017, so must have been through a few phone-to-phone days transfers to be on my current one.
But in my main store of files that’s synced across machines, I have this from 1999
Memes were still finding their feet back then.
It’s a watering can’t.
I’ve used bookshop.org which sells ebooks and has a reader, but you can nominate a local bookstore to get part of the profit.
My point was really how there was little to no verification on SMTP servers back then and that you could send mail with a simple terminal program, or, more practically, a script.
Not hacking, but using knowledge of the insecurity of SMTP servers of the time, to allow spoofing easy spoofing.
Not so easy to find SMTP servers to do that with now.
Not really hacking, but in the 90s you could usually just connect to a mail server and it would believe what you told it.
If you were careful you could just type an email directly: MAIL FROM, RCPT TO, etc.
I would write scripts at work to send spoof emails sometimes, you could put anything as the FROM address, like “info @ catfacts” or whatever.
Another “not really hacking” example is that when some companies first got an Internet connection, they would just allocate public IP addresses to everyone, no gateway or firewall. So you could browse any non-passworded smb shares just knowing the IP.
I heard of it from this video
It’s just one of several tells. Although you can’t really rely on anything. Just like “badly-drawn hands” is less likely to show up now.
Once I heard this, I had to learn how to type them, btw!
I tested some more and can’t get it to work any more. I found a post saying it worked in 1.5.2 so maybe something broke in newer versions.
You need to enable Bluetooth as a method of connection in the app settings (and can turn off wifi and data there).
The phones can be in airplane mode but with Bluetooth turned back on (as you would to use earbuds).
I don’t recall pairing the phones, but there is a “connect via Bluetooth” option on each chat that might be doing that automatically.
You link accounts to each other by scanning qr codes.
It does have a group chat but I haven’t used it, so I don’t know if that works with Bluetooth alone.
I just tried testing this with an old phone of mine, but can’t get it to work right now (maybe because it has Graphene os?), but I have actually used it on flights in the past.
I’ve used it to message someone while on a flight.
I have it add a backup suffix based on the date. It moves changed and deleted files to another directory adding the date to the filename.
It can also do hard-link copied so that you can have multiple full directory trees to avoid all that duplication.
No file deltas or compression, but it does mean that you can access the backups directly.
I’m referring to Amcrest Pro cameras, btw. They are the ones that let you configure them to be independent of their cloud service, write to a NAS, etc.
I’m just testing out thingino, but it’s currently lacking features compared to amcrest.
There’s no option to only save video when events trigger, so it fills the card quickly.
And I can’t get the tinyCam app to access recorded files, so I have to use the web-based file browser.
But then Amcrest’s apps (both old and new) have do many faults and glitchy behavior.
Lots of features, but not simple and a big learning curve is you don’t already is emacs.
I don’t think that there’s a way for it to do drag and drop, either, although it’s emacs, so who knows?
There are some good comments in this discussion
Rsync can rename/move target changed or gone from the source.
I use those options so that I get a separate ‘archive’ dir next to my backup target, with old versions of files.
It’s useful for loose collections such as photos.
I think I get more of what you mean, now. I’m sure that there are technical issues to solve, like you said from the start, but that doesn’t mean they can’t be solved.
Realistically that single sent packet is going to get copied multiple times in order to re-route it just to the subscribers. We’re not all one one big LAN.
What mechanism causes a single sent packet to get to all the subscribers (and only them)?
Assuming that we all have a static IP for simplicity, a sent packet needs to be routed to the subscriber IPs (via their ISPs). Where is that table stored? Is it sent with each packet so that it can be routed on the way? That would be a huge bloat of the packet size.
BTW, I do remember life before VCRs. Pre internet, I downloaded QWK packets from BBSs.
I get the appeal of removing communication from the hands of FB etc, but I don’t see how switching to a broadcast system that increases unreliably would help. And I don’t see how the broadcast would work on the Internet that we have.
So when a video is created it is immediately sent to subscribers?
In that case, for things to be sent once, it relies on the receivers always being online. That doesn’t work if my laptop is closed at the time.
That’s why I’m thinking that it needs online caching to work. Or everyone has a cloud server that handles sending and receiving while they’re not online.
In fact, that starts to sound like everyone running their own personal lemmy-like instance, to which their friends subscribe.
And in that case it wouldn’t matter if messages were sent more than once, each person’s server would handle it.
I just thought that it worked well with as a static image.
But maybe someone had a bit of fun doing that divider effect.
Oh, I should add that the plug in the 2nd pic is what keyboard connectors were back then (PS/2 connector).