TIL about systemd-cron

systemd-cron is a third party project, not affiliated with the systemd project, that adds a generator that reads a traditional crontab and creates .timer and .service units for systemd that's equivalent to what crond would have run. It handles both cron and anacron and because it's a generator, it only runs once on boot and then exits. There's no extra daemon running at all for it, it just sets it up to run with systemd and adds a .path unit for the crontab and other directories to rerun it if the config is edited. It also supports an easy way to alter the service files being run so that you can e.g. make it persistent so it'll run cron jobs that it missed if the system was offline when the cron job would have run (like anacron, but still tied to a specific date rather than some interval), change the CPU and IO priority so it'll only use up idle resources, set a randomized offset so hourly stuff will run spread through 0 - 30 minutes instead of all starting exactly at the same time, etc.

It's packaged and shipped under Debian and Ubuntu as systemd-cron and it looks like a great drop-in replacement for crond with only a couple minor caveats. The current version is built using Python but there's a rewrite of it done in Rust.

https://github.com/systemd-cron/systemd-cron

https://redd.it/cx8v3w
@r_linux

Deleting Mint and installing Ubuntu

Is there a way to delete mint on my ssd and install a new distro or even just download it straight from mint?

https://redd.it/cx7ha8
@r_linux

Any distro that automatically keeps the latest driver?
https://redd.it/cxbdq9
@r_linux

Steam proton was enough to move me to Linux on my home desktop

It plays enough of the games I want to play and Lutris fills most of the rest. Easy anti-cheat is the only thing in the way for me at this point.

I hope Valve find statistically enough people took advantage of Proton to continue development, it seems regardless of user base percentage they're dedicated to the project.

https://redd.it/cxbb2u
@r_linux

(Noob Question) Why Linux only have 3 permission groups?

Why Linux only have owner, group and others as permission groups? What if the user want a more finer permission control? For example, assume user A belongs to group B and C, how can he/she allows a file to be readable, writeable and executable to group B but only readable to group C?

https://redd.it/cxch51
@r_linux

How to Run a Usability Test | Sam Hewitt
https://samuelhewitt.com/blog/2019-08-27-how-to-run-a-usability-test-on-free-software-linux

https://redd.it/cxczqw
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Arch Linux on the LG gram 17: Linux friendly, nice screen, incredibly light, bios encryption
https://www.sspdd.com/2019-08-29-lg-gram17/

https://redd.it/cxdc56
@r_linux

Recommended minimal software to ssh into a local machine from the web browser?

I want to be able to command line access my raspberry pi from any device, simple by using a web browser so I dont have to depend on putty or other tools to be present.

https://redd.it/cxd4en
@r_linux

ElementaryOS

Hello.
I really like the design of this linux distro. And as I understood, I have to pay for this OS. So questions are:
1. Is it worth as OS?
2. How is gaming (I mean Dota 2 + Blender)?
3. Does it support crossfire rx 570 8gb?
Thank you and have a nice day. 🙂
P.S. sorry for grammar mistakes and non logical sentences.

https://redd.it/cxeibl
@r_linux

How to analyze the dot net app using Linux
https://onlineitguru.com/blog/how-to-analyze-the-dot-net-app-using-linux

https://redd.it/cxed04
@r_linux

ULauncher IP Lookup extension

Hi all,

I am pleased to announce that I have released a IP Lookup extension for ULauncher. Please have a look and your feedback will be highly appreciated.

Github: [https://github.com/munim/ulauncher-ip-lookup](https://github.com/munim/ulauncher-ip-lookup)

NOTE: You will need to sign up at [https://ipdata.co](https://ipdata.co) and get an API key in order to work

Regards.

https://i.redd.it/evv5iy0vgyi31.gif

https://redd.it/cw1oyz
@r_linux

Use curses, don't swear
https://www.youtube.com/watch?v=eN1eZtjLEnU

https://redd.it/cxfuk6
@r_linux

Just discovered GraphicsMagick.

I didnt know this existed. I've used ImageMagick and alot of utilities Ive seen that have a backend tend to call ImagickMagick. Though apparently this is a faster program and has a stable consistent API and update system. (RE: http://www.graphicsmagick.org/FAQ.html#how-does-graphicsmagick-differ-from-imagemagick)

I loaded it up and it looks and feels similar to ImageMagick.
Havent tested it thoroughly, so I cant say much (other than IM gracefully tells me it cant read a DICOM/Kodak RVG (Encapped DICOM) image and believes it's a JPEG), while GM segfaults on it

me@home:~/Pictures$ display R1.rvg
display-im6.q16: Unsupported JPEG process: SOF type 0xc3 `/tmp/magick-7452EBP-VrhRXeWJ' @ error/jpeg.c/JPEGErrorHandler/322.
me@home:~/Pictures$ gm display R1.rvg
gm display: abort due to signal 11 (SIGSEGV) "Segmentation Fault"...Aborted (core dumped)
me@home:~/Pictures$


However, that's a probably an oddity use case. For general uses does anyone who does more image oriented tasks have a deeper take on this? Also any field exerience setting this as an update-alternatives replacement or alias (for drop in replacement that default to IM noscripts that do large scale image conversion)

https://redd.it/cxgqy6
@r_linux

How to Perform Comprehensive Linux Kernel Module Security Testing
https://www.apriorit.com/dev-blog/634-qa-how-to-perform-comprehensive-linux-kernel-module-security-testing?utm_source=reddit&utm_medium=blog-aug19

https://redd.it/cxh2hm
@r_linux

Using YAD (Yet Another Dialog)

I wrote a quick set of help notes on ways to use YAD on a Linux Desktop.

​

https://i.redd.it/lbryq7e48lj31.png

Enjoy.

[http://eirenicon.org/knowledge-base/yad-yet-another-dialog/](http://eirenicon.org/knowledge-base/yad-yet-another-dialog/)

https://redd.it/cxgw8c
@r_linux

Managing GNOME Sessions with Systemd - GUADEC 2019
https://guadec.ubicast.tv/videos/managing-gnome-sessions-with-systemd_85843/

https://redd.it/cxiikw
@r_linux

Weekend Fluff / Linux in the Wild Thread - August 30, 2019

Welcome to the weekend! This stickied thread is for you to post pictures of your ubuntu 2006 install disk, slackware floppies, on-topic memes or more.

When it's not the weekend, be sure to check out r/WildLinuxAppears or r/linuxmemes!

https://redd.it/cxjucz
@r_linux

Port-based BPF firewall for systemd services
https://kailueke.gitlab.io/systemd-bpf-firewall-loader/

https://redd.it/cxk8as
@r_linux

Linux Privilege Escalation [95] - Pentesting Training
https://www.youtube.com/watch?v=Ur-IAz3zMaQ&feature=share

https://redd.it/cxjjvx
@r_linux

Is Asus Vivobook E200HA fully supported now?

I saw some old posts where they said that sound and sd card reader didn't work but i couldn't find any newer posts.

https://redd.it/cxlvit
@r_linux

KDE v/s GNOME - Which do you prefer and why?



https://redd.it/cxjchj
@r_linux