I still feel like there's space for a MATLAB replacement...

GNU Octave?

https://en.wikipedia.org/wiki/GNU_Octave

using a language that is mostly compatible with MATLAB

[-] moonpiedumplings@programming.dev 1 points 3 days ago* (last edited 3 days ago)

Wikibooks, wikiversity, for learning resources. There are also other wikimedia projects like wikivoyage for travel resources, or wikinews which you already put.

Libretexts for learning resources.

Pip in a venv doesn't get you non python tools.

Conda also has venvs, for seperate environments for stuff as well.

This reminds me of kasmweb, but fully open source.

[-] moonpiedumplings@programming.dev 18 points 2 weeks ago

I just use termux + the simple http server built into python

[-] moonpiedumplings@programming.dev 21 points 1 month ago* (last edited 1 month ago)

No one complained when s6, another init system, also offered a sudo alternative (before systemd did, too). But when Poettering does it, it's bad and wrong and ununixlike!

Maybe setuid has been extremely problematic, and more than one entity has sought alternatives?

29

According to the archwiki article on a swapfile on btrfs: https://wiki.archlinux.org/title/Btrfs#Swap_file

Tip: Consider creating the subvolume directly below the top-level subvolume, e.g. @swap. Then, make sure the subvolume is mounted to /swap (or any other accessible location).

But... why? I've been researching for a bit now, and I still don't understand the benefit of a subvolume directly below the top level subvolume, as opposed to a nested subvolume.

At first I thought this might be because nested subvolumes are included in snapshots, but that doesn't seem to be the case, according to a reddit post... but I can't find anything about this on the arch wiki, gentoo wiki, or the btrfs readthedocs page.

Any ideas? I feel like the tip wouldn't just be there just because.

[-] moonpiedumplings@programming.dev 34 points 2 months ago

https://forgejo.org/compare-to-gitea/

I dunno, some of these are a pretty big deal, in particular:

Gitea repeatedly makes choices that leave Gitea admins exposed to known vulnerabilities during extended periods of time. For instance Gitea spent resources to undergo a SOC2 security audit for its SaaS offering while critical vulnerabilities demanded a new release. Advance notice of security releases is for customers only.

Gitea is developed on github, whereas forgejo is developed on and by codeberg, who use it as their main forge (also mentioned on that page). Someone dogfooding gives me more confidence in the software.

[-] moonpiedumplings@programming.dev 21 points 2 months ago

What? Github is not open source.

And plenty of people have issues with Github: https://sfconservancy.org/GiveUpGitHub/

their entire hosting site is, itself, proprietary and/or trade-secret software

23
submitted 3 months ago* (last edited 3 months ago) by moonpiedumplings@programming.dev to c/foss@beehaw.org

I've recently done some talks for my schools cybersecurity club, and now I want to edit them.

My actual video editing needs are very simple, I just need to clip parts of the video out, which basically every editor can do, as per my understanding.

However, my videos were recorded from my phone, and I don't have a presentation mic or anything of the sort, meaning background noise, including people talking has slipped in. From my understanding, it's trivial to filter out general noise from audio, as human voices have a specific frequency, even "live", like during recording or during a game, but filtering voices is harder.

However, it seems that AI can do this:

https://scribe.rip/axinc-ai/voicefilter-targeted-voice-separation-model-6fe6f85309ea

Although, it seems to only work on .wav audio files, meaning I would need to separate out the audio track first, convert it to wav, and then re merge it back in.

Before I go learning how to do this, I'm wondering if there is already an existing FOSS video editor, or plugin to an editor that lets me filter the video itself, or a similar software that works on the audio of videos.

[-] moonpiedumplings@programming.dev 18 points 4 months ago* (last edited 4 months ago)

https://nixlang.wiki/en/tricks/distrobox

https://distrobox.it/

Not the nix way, but when you really need something to work, you can create containers of other distros.

15
submitted 7 months ago* (last edited 7 months ago) by moonpiedumplings@programming.dev to c/askscience@lemmy.world

cross-posted from: https://programming.dev/post/6822168

I was watching a twitch streamer play the game pogostuck (A game similar in frustration and difficulty to Getting over it with Bennett Foddy — Don't Fall!).

They were also reading chat at the same time (usually out loud, as well). Multitasking.

Lots of sources (here's one) say that true multitasking is impossible. Rather, it's very fast switching, where there is a degradation of performance.

Knowing this, I naturally made it my mission to trip the streamer up with seemingly benign messages.

I was sharing some actual information about another streamer who beat another game, but a made a typo something like:

I remember a streamer beat the game a game ...

And I noticed how much more the streamer struggled to read this compared to previous, accidental typos (missing spaces, extra spaces, etc.). He spent a good 5 seconds on this message, and during the process, he fell really far. 😈

So I decided to do some testing. Inserting words, swapping them around, and whatnot, to see what tripped him up the most. Most typos didn't affect him.

There was one typo that tripped him again, where I said something like:

If it wasn't for a for

So it seems to be repetition? But I couldn't always replicate this with other forms of repetition.

Later on, I copied the two guards riddle, with an alteration:

One of the guards always lies and the other always lies as wekk. You don't know which one is the truth-teller or the liar either. However both guards know each other

Sadly, I didn't cut the part about "don't know which is truth teller or liar" out.

The streamer spent a good 5 minutes interpreting this puzzle, and eventually interpreting it as the original puzzle. Then, he was trying to solve a riddle, game, and read chat all at once.

He was stuck on the bottom until he gave up on the riddle (I revealed that I meant what I said when I said both guards lie). 😈

Anyway, that was a bit off topic but still relevant.

I'm wondering if any studies have been done on this? I know studies have been done on human's ability to read words with the letters partially scrambled, but what about typos?

How can I improve my distraction game (with plausible deniability of course)?

20

I was watching a twitch streamer play the game pogostuck (A game similar in frustration and difficulty to Getting over it with Bennett Foddy — Don't Fall!).

They were also reading chat at the same time (usually out loud, as well). Multitasking.

Lots of sources (here's one) say that true multitasking is impossible. Rather, it's very fast switching, where there is a degradation of performance.

Knowing this, I naturally made it my mission to trip the streamer up with seemingly benign messages.

I was sharing some actual information about another streamer who beat another game, but a made a typo something like:

I remember a streamer beat the game a game ...

And I noticed how much more the streamer struggled to read this compared to previous, accidental typos (missing spaces, extra spaces, etc.). He spent a good 5 seconds on this message, and during the process, he fell really far. 😈

So I decided to do some testing. Inserting words, swapping them around, and whatnot, to see what tripped him up the most. Most typos didn't affect him.

There was one typo that tripped him again, where I said something like:

If it wasn't for a for

So it seems to be repetition? But I couldn't always replicate this with other forms of repetition.

Later on, I copied the two guards riddle, with an alteration:

One of the guards always lies and the other always lies as wekk. You don't know which one is the truth-teller or the liar either. However both guards know each other

Sadly, I didn't cut the part about "don't know which is truth teller or liar" out.

The streamer spent a good 5 minutes interpreting this puzzle, and eventually interpreting it as the original puzzle. Then, he was trying to solve a riddle, game, and read chat all at once.

He was stuck on the bottom until he gave up on the riddle (I revealed that I meant what I said when I said both guards lie). 😈

Anyway, that was a bit off topic but still relevant.

I'm wondering if any studies have been done on this? I know studies have been done on human's ability to read words with the letters partially scrambled, but what about typos?

How can I improve my distraction game (with plausible deniability of course)?

[-] moonpiedumplings@programming.dev 15 points 8 months ago

Was watching a twitch streamer learning linux, and chat convinced them to open vim for the first time. Not a single person gave the real answer of how to exit, all joke answers like "Power off," and it was hilarious.

12

cross-posted from: https://programming.dev/post/5669401

docker-tcp-switchboard is pretty good, but it has two problems for me:

  • Doesn't support non-ssh connections
  • Containers, not virtual machines

I am setting up a simple CTF for my college's cybersecurity club, and I want each competitor to be isolated to their own virtual machine. Normally I'd use containers, but they don't really work for this, because it's a container escape ctf...

My idea is to deploy linuxserver/webtop, as the entry point for the CTF, (with the insecure option enabled, if you know what I mean), but but it only supports one user at a time, if multiple users attempt to connect, they all see the same X session.

I don't have too much time, so I don't want to write a custom solution. If worst comes to worst, then I will just put a virtual machine on each of the desktops in the shared lab.

Any ideas?

19
submitted 8 months ago* (last edited 8 months ago) by moonpiedumplings@programming.dev to c/linux@lemmy.ml

docker-tcp-switchboard is pretty good, but it has two problems for me:

  • Doesn't support non-ssh connections
  • Containers, not virtual machines

I am setting up a simple CTF for my college's cybersecurity club, and I want each competitor to be isolated to their own virtual machine. Normally I'd use containers, but they don't really work for this, because it's a container escape ctf...

My idea is to deploy linuxserver/webtop, as the entry point for the CTF, (with the insecure option enabled, if you know what I mean), but but it only supports one user at a time, if multiple users attempt to connect, they all see the same X session.

I don't have too much time, so I don't want to write a custom solution. If worst comes to worst, then I will just put a virtual machine on each of the desktops in the shared lab.

Any ideas?

[-] moonpiedumplings@programming.dev 95 points 10 months ago* (last edited 10 months ago)

where does diagonal fall?

42

So basically, my setup has everything encrypted except /boot/efi. This means that /boot/grub is encrypted, along with my kernels.

I am now attempting to get secure boot setup, to lock some stuff, down, but I encountered this issue: https://bbs.archlinux.org/viewtopic.php?id=282076

Now I could sign the font files... but I don't want to. Font files and grub config are located under /boot/grub, and therefore encrypted. An attacker doing something like removing my hard drive would not be able to modify them.

I don't want to go through the effort of encrypting font files, does anyone know if there is a version of grub that doesn't do this?

Actually, preferably, I would like a version of grub that doesn't verify ANYTHING. Since everything but grub's efi file is encrypted, it would be so much simpler to only do secure boot for that.

And yes, I do understand there are security benefits to being able to prevent an attacker that has gained some level of running access to do something like replacing your kernel. But I'm less concerned about that vector of attack, I would simply like to make it so that my laptops aren't affected by evil maid attacks, without losing benefits from timeshift or whatnot.

I found the specific commit where grub enforces verification of font files: https://github.com/rhboot/grub2/commit/539662956ad787fffa662720a67c98c217d78128

But I don't really feel interested in creating and maintaining my own fork of grub, and I am wondering if someone has already done that.

[-] moonpiedumplings@programming.dev 41 points 10 months ago

The issue people have with snaps isn't the containerization or the bundles, but the proprietary backend. There is no way to point the snaps at a different store other than the one canonical controls. Canonicals forcing snaps on people pisses a lot of people off because it's a blatant power grab, an attempt to get people dependent on something they have control over in a microsoft-esque move. Flatpaks and docker don't have that issue.

11

I'm having trouble with networking on linux. I am renting a vps with only one NIC, one ipv4 address, and a /64 range of ipv6 ones. I want to deploy openstack neutron to this vps, but openstack neutron is designed to be ran on machines with two NIC's, one for normal network access, and entirely dedicated to virtualized networking, like in my case, giving an openstack virtual machine a public ipv6 address. I want to create a virtual NIC, which can get it's own public ipv6 addresses, for the vm's, without losing functionality of the main NIC, and I also want the vm's to have ipv4 connectivity. I know this setup is possible, as the openstack docs say so, but they didnt' cover how to do so.

Docs: https://docs.openstack.org/kolla-ansible/latest/reference/networking/neutron.html#example-shared-interface

There is an overview of what you need to do here, but I don't understand how to turn this into a usable setup. In addition to that, it seems you would need to give vm's public ipv4 addresses, in order for them to have internet connectivity. I would need to create a NAT type network that routes through the main working interface, and then put the neutron interface partially behind that, in order for ipv4 connectivity to happen.

I've been searching around for a bit, so I know this exact setup is possible: https://jamielinux.com/docs/libvirt-networking-handbook/multiple-networks.html#example-2 (last updated in 2016, outdated)

But I haven't found an updated guide on how to do it.

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moonpiedumplings

joined 11 months ago