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Ullebe1

@ Ullebe1 @lemmy.ml

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16
Joined
3 yr. ago

  • [YT] Demystifying SELinux vs. AppArmor

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  • What do you do on your machine that requires you to completely disable a fundamental security feature of your distro? I haven't had SELinux cause any issues for years.

  • Pipewire vs PulseAudio: What's the Difference?

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  • Nice appeal to authority. Are you referring to a formalised security model (of which I'd love to read more, if you have a link?), or the actual clipboard on your PC?

    But not all interaction is equal. Access control and granularity of permissions is something X11 is sorely lacking in, which Wayland has built in. Which is why X11 is a bad fit for common treat models and Wayland is not.

    Ohh, @LainTrain@lemmy.dbzer0.com said so, so it must be true! I'll let you keep believing that while I enjoy them and watch them grow in popularity and usage, just like Wayland.

  • Pipewire vs PulseAudio: What's the Difference?

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  • Not even close, you're even more off base than you were before. I mean what do you even base your ridiculous statements about my opinions and perceptions on?

  • Pipewire vs PulseAudio: What's the Difference?

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  • Not at all, seems like you're reading things into it that aren't there.

    By modern distros I mean that for the newer variants of multiple large distros (Like Fedora Silverblue and its cousins, openSUSE MicroOS, etc.), even ordinary Ubuntu, Fedora and their derivatives and cousins, across the major DEs like Gnome and KDE, for all of them apps packaged like Flatpaks and Snaps have an increasingly large role.

    I'm specifically not saying it's the only way to be modern or that other approaches can't have merit, I'm saying there is a clear trend among some of the largest players in the game.

    I think it's dangerous to put words in other peoples mouths and then argue against those imaginary statements, and I think it's sad that you seemingly feel it's the best way to argue for what you believe in. You can do better.

  • Pipewire vs PulseAudio: What's the Difference?

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  • The X11 connection is generally an enormous hole in such containment, but yes. Such containment definitely helps. That is why I run as many applications as possible as Flatpaks, as they employ similar countermeasures, and why they're playing an increasingly big role in modern distros.

    And it's great that you're risk averse and able to avoid untrusted scripts to that degree. It's just not feasible for the general user, which is why things need to be secure even if a malicious script is mistakenly allowed to execute.

    I'm not saying that that specific annoyance is a security measure. I'm saying that the whole paradigm shift that Wayland is is partially motivated by improving security. Such paradigm shifts come with paper cuts, especially in the beginning. But the rough edges are being filed down one by one. That's not to say that Wayland is the answer for everyone yet, nor that it will ever be. There'll always be exceptions. But for the vast majority of users it is, and it helps keep their systems safer than they are without it.

  • Pipewire vs PulseAudio: What's the Difference?

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  • So I guess your question wasn't in good faith then, but just bait so you'd have an excuse to rant about things unrelated to my answer?

    The security issue that Wayland helps solve has nothing to with systemd or logind, so I'll just ignore your tirade against them. If you don't want to use them, then good on you.

    The issue is an inherent issue with the X11 protocol. It can be worked around, but it can't be fixed without something changing in the protocol on a fundamental level. The core premise that any client can be trusted unquestionably is broken and was broken the second browsers began running JavaScript. Not to mention all the other times most modern computers run opaque code of uncertain origins.

    Keeping it simple is definitely a great basis to build a secure system upon, it just can't stand alone because of reasons like the above.

  • Pipewire vs PulseAudio: What's the Difference?

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  • I absolutely am. Calling Wayland "something that has been broken for more than a decade" rather than "something that has been in active development for more than a decade" is also an interesting take. By that measure X.Org is "something that has been broken for almost two decades", so let's just not go there. And I'm not saying that Wayland magically makes everything secure. I'm saying that Wayland (or something like it) is a necessary step if we want a desktop that is secure. I have seen people propose something like nested sandboxed X servers with a single application for each as an alternative, but I think it's probably better to actually fix the underlying problem.

    That's an interesting use case. It isn't really anything I've had a need for, so I don't know what the best way to do something like that is. If your compositor doesn't allow it, could it perhaps be possible to run as a different user in a nested compositor, like Cage or gamescope? Also, how do you sandbox the applications X11 access? If they share the same server, then a sandboxed application can just wait for you to launch a terminal and use sudo, at which point it can inject a malicious command as root.

  • Pipewire vs PulseAudio: What's the Difference?

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  • Pipewire vs PulseAudio: What's the Difference?

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  • Allowing any app unrestricted access to the input and output of any other app (like in X11) is a terrible security practice. It allows for trivially easy keyloggers and makes horizontal movement to other apps after the first has been exploited super easy.

    Many people's answer to this is "then just don't run untrusted apps, duh", but that is a bad take since that isn't realistic for 99% of users. People run things like Discord or Spotify or games or Nvidia drivers all the time, not to mention random JavaScript on various websites, so the security model should be robust in the presence of that kind of behaviour. Otherwise everyone is just a single sandbox escape in the browser away from being fully compromised by malware installed with root privileges. Luckily we know better now than when X11 was designed and that is the reason for things like Bubblewrap (used in Flatpak for sandboxing), portals and the security model of Wayland.

    And in the end: the people who decided this are the people actually willing to do the work to build and maintain the Linux desktop stack. If anyone knows what the right approach is, it's them.

  • Deleted

    Permanently Deleted

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  • Even people on Arch should use it. It ensures better isolation of processes and is the only supported installation method if you ever have issues.

  • Is there a downside to Flatpak?

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  • That seems like a shortcoming in those tools, that I'd expect them to fix as Flatpaks are pretty commonplace.

  • Rust-Written Linux Scheduler Showing Promising Results For Gaming Performance

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  • What makes you think that? The whole point of it is to create a rustc backend that uses libgccjit instead of LLVM.

  • Matrix vs. XMPP, Security, Privacy, Apps, Efficiency ?

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  • I did, yes. TBH it is very anti-Matrix right out of the gate, makes a mountain out of a molehill and it even admits that it contains FUD.

    There's a couple of things that are misleading in it (for example the section on bridges) and the critique basically boils down to "if you use the identity servers that are run by Matrix.org with your self-hosted homeserver they can see the info you send to them" and "Google Analytics in Element is bad".

    All in all I didn't find it very convincing, and very lacking in nuance.

  • Matrix vs. XMPP, Security, Privacy, Apps, Efficiency ?

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  • Do you have a source for the claim that collecting userdata is ultimately what funds Matrix?

  • TIL You can use systemd-analyze plot > plot.svg to plot the service startup time to find bottlenecks

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  • It is supported by systemd to use FIDO2 + pin to decrypt luks partitions with many security keys, including Yubikeys. I use it every day on my laptop.