Wild guess. Libspa version has changed and thus its path too. You will have to put (probsbly new version) of aac.so file to new libspa directory.

Yeah, it might require new one if dependencies have been changed.

Note. Before rebooting, regenerate initramfs for all kernel versions. I am not in debian, but dpkg-reconfigure initramfs-tools might do it.

If computers are in same network, even with different ip addresses, they still can see all broadcast and multicast traffic. This means for example dhcp.

If you fully trust your computers, and are sure that no external party can access any of them, you should be fine. But if anyone can gain access to any of your computers, it is trivial to gain access and sniff traffic in all networks.

If you need best security, multiple switches and multiple nics are unfortunately only really secure solution.

If you just rename the dir, and then find all broken symlinks in your system?

find . -xtype l

I had laptop running Ubuntu 16.04, which was running for 2273 days without reboots or anything. It was located in safe place so not even security updates were installed during that time. And it was still completely fine after all these days (little bit over 6 years). It was finally shut down when there was electricity break, and its battery failed, and I decided that it was time to retire it.

There of course were tons of updates available then, but no one forces you to install them. and in Debian system instead of Ubuntu, there will be lot less, their release policy is much stricter.

First of all, in Linux everyone should only use software from distribution repositories (eg. via apt command in Debian, Ubuntu, Mint, dnf/yum command in Fedora etc…). Package managers will install software in controlled way and it is really easy to remove them too. And, there is usually gui app for installing apps from distribution repositories.

Second way is to use flatpak / snap. They are pretty much similar and will keep things easy.

Do not install sh packages or tar.gz if you really do not know what you are doing. These are only for expert cases.

One fundamental change coming from Windows is that in Linux, you should never worry about location where software is installed (except for those expert cases, which you should not use). They will be put in correct places always. In Linux, apps are sorted so that executables go to /usr/bin, library files to /usr/lib64 and /usr/lib, applicatoin other non-modifiable stuff to /usr/share etc. It gets quite a lot to get used to, but in long term it feels more natural than Windows way to dump everything in app directory.

My recommendation will be to install some user friendly distribution (Ubuntu, Fedora, Mint) and just go ahead with default package management things what it offers. If you see Android way handling software good, Fedora Silverblue is kind of like that - System upgrades are handled same way, and applications are installed as flatpaks.

Can you access your wan ip when you are somewhere else than on your own lan?

If not, then this is probably just that your router does firewalling and nat is such order that you can access admin interface from local network via wan address.

If yes, then router has some serious misconfiguration.

Also check your bios version. I had similar problems with usb-c and fans on HP Elitebook, they were fixed with bios upgrade.

Edit: I also had troubles waking from sleep. They were caused by wwan/lte modem, I disabled it on bios and now sleep works flawlessly.

For first-time Linux users, I always recommend one of the main user friendly distributions - it is much easier to ask or look for help this way.

So, Fedora, Ubuntu or Opensuse.

Their installers all can live boot

Blog makes valid point, but why on earth there would be any current Linux distribution without usr merge?

EDIT: Especially when every major Linux distributions have already implemented usr merge long time ago.

Hardy Heron

Ah, I really liked Ubuntu looks in old (4.04 - 8.04) versions. The brown/orange is so much better than the newer gray/purple/red whatever. Since 10.04 the theme and color scheme has been awful.

Asus Vivobook Go 11, width is 279 mm.

I have seen this on HP laptop with WWAN device installed. Disabled device from Bios and problem went away.