Yeah. Open one PDF normally. File > import a second one and select whatever option imports by appending pages.
This is a really good question!
I believe the general answer is, until the compressed file is indistinguishable from randomness. At that point there is no more redundant information left to compress. Like you said, the 'information content' of a message can be measured.
(Note that there are ways to get a file to look like randomness that don't compress it)
By default, an enencrypted boot drive is not sufficient to be able to decrypt a LUKs drive. If you have to type in your password to start the computer/unlock LUKs then you should be good.
If you've setup a keyfile or TPM based decryption of LUKS, then your data is probably not safe (though a TPM based decryption could be if the OS is secure and secure boot is setup properly)
In this case, if you have another server then you could setup a mutual tang/clevis system where each device gets the keys it needs from the other server on the LAN. Both would be LUKs encrypted. So if one is online the other gets the required key from the online one while booting. But if both are offline then no keys are available and you have to type in a LUKS password to boot. Something like https://www.ogselfhosting.com/index.php/2023/12/25/tang-clevis-for-a-luks-encrypted-debian-server/ but what they do with multiple servers is probably overkill
That's probably only for selling steam keys on another store. You might be able to sell non steam versions for any price you want
The original is something like "it's all Ohio" "always has been". The globe shown is just a large landmass that looks like Ohio. They're probably astronauts since you'd have to be in space to see it. The astronaut killing the other has the Ohio flag on them and is killing them for knowing too much.
If there's a 0 day in the VPN software then I'm also probably boned. The chances of that seem on par with the likelihood of an openssh vulnerability? I feel like vpns are useful to secure services without good authentication, but their use in front of an openssh server has never made much sense to me.
Sorry for the series of edits. Yeah, just starting timers.target or graphical.target again when you're done without using isolate seems like a pretty good strategy!
I think if you switch back to the original target that depends on those services they should start again?
Like systemctl isolate yourtarget.target and then a systemctl isolate graphical.target to return to normal operation
Isolate will stop any services that aren't required by the dependency chain.
Some of these might be user services though, in which case you'd need to create a user target
It's possible that you don't need to use isolate though, and can just start a target that conflicts and then instead of stopping it, start graphical.target
I semi-regularly put the milk in the cupboard and usually realize when I try to put the cereal in the fridge and it doesn't fit
I would understand working to be accomplishing its stated goal, which is increasing birthrates. I believe there's very limited evidence for that.
Nothing on that linked page implies it works, just that some countries have done it.
We were in upstate NY, and got extremely lucky with a hole in the clouds right around the sun at totality.
The red at the bottom was unexpected and very cool to see. It's a solar prominence
If you haven't seen it, the open source driver for 3d connexion stuff is also pretty good, and I believe might be necessary for blender to work with it. It's also probably packaged in the distro repositories.
https://github.com/FreeSpacenav/spacenavd