Many classical email clients have the option to edit the senders address while composing the email. If the mail server does not allow this you usually get an error message on sending.

You are technically correct in saying that it’s not a registration. Instead it’s a sponsoring: https://en.wikipedia.org/wiki/Sponsored_top-level_domain

senders can only be easily forged if you control the senders mail server or if they don’t use best practices for running a mail server.
See also:

• DKIM
• DMARC

there are cryptographic signatures on almost all mails sent by large mail providers these days, which makes it very hard to just forge an email that will hold up to closer examination with the help of the provider. so basically the IT techs of the company would need to be on board with whatever the perpetrator is doing, for them to get away with it.

The situation isn’t that different in Germany: emails can be used as evidence in court, though they aren’t as strong as evidence as say: a signed letter. There is also the issue with proving that an email actually arrived, but i would assume that in this case that is already covered.

https://en.wikipedia.org/wiki/Earth's_circumference#Eratosthenes

Actually using AI gibberish for this might be the best strategy of all, since Reddit seems hell bent on making money with AI training and feeding AI generated text into AI training has been shown to yield increasingly worse results over time. So you make the product Reddit is selling less attractive.

So it still uses a MSDOS partition table, interesting. This usually only happens on systems that do not support EFI at all.

Is your BIOS and main board fairly old per chance?

Ok, that looks like a fairly standard setup. I guess taking a look at the boot loader itself would be the next step. When you see the Debian bootloader you could try pressing ‘e’ to view what commands it uses internally to boot. The lines starting with “linux” and “initrd” would be most interesting.

Hi, it would be useful to know what kind of device you are installing on. For a laptop the model and make would be especially useful. If it is a PC then the drive configuration would be interesting (what kind of drive, how many etc.)

So, i read the “Red Mars” trilogy. I also keep up with research into the Martian atmosphere, its soil and geology.

My take is that all of this is still a pipe dream as much as it was 30 years ago when we did not know many of these things.
People don’t want to see just how hostile Mars is to life. They pick a couple of the most obvious problems (e.g. radiation, no liquid water, no oxygen) and then they look for the first solution that seems viable and then declare Mars somehow liveable because look we can just implement those things.

But they are completely ignoring that: none of these proposed solutions have been implemented at scale yet, at least not outside of earth’ atmosphere, there are hundreds of other known problems that often just don’t make it to the head lines because they don’t look that interesting or threatening (example: dust is suuuuper deadly on Mars, probably even worse than moon dust) and many problems will undoubtedly only become obvious once living beings are on the surface of Mars.

I am glad that there is hard sci-fi dealing with some of these problems in very optimistic ways, because we should try to better our understanding of them and not just give up, but we also should not have any illusions about how hard this task is and that this can take centuries of work.

Most modern operating systems randomize the MAC.

[citation needed]
having the option to randomize the MAC is not the same as actually doing that. There are also a few downsides to random MACs, like captive portals not remembering you on public WiFis.

You mean server? If so, the server is also open source

That is what i meant. It is OSS but not FOSS because you need a key to start it.

Bitwarden has a FOSS client app and FOSS server apps exist (though the default service is not FOSS).

Syncing 2FA keys brings the danger with it that you accidentally sync the key to the device that is used for the first factor thus making it not 2FA anymore.

If they are all installed in the same wine prefix you could back up everything in one go by archiving the “.wine” folder in your home. that will include all applications installed in wine and all settings for those applications.

if you want to separate them into one archive per app you should look into wine prefixes, otherwise you would need to identify every folder a given app created during installation and archive those together manually, which can be very tedious.