Linux kernel

Hello all,

hope everyone is keeping safe through the crises..

I'm a Linux beginner to intermediate user, and would like to ask if any of you could recommend a good book to help me understand the Linux kernel. I understand programming and hardware enough to grasp the terms but not looking for something too advanced..

Thank you guys

https://redd.it/fy5kvs
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How to set up a remote school environment for kids with Linux | Opensource.com
https://opensource.com/article/20/4/school-home-linux

https://redd.it/fy4c9a
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swiper - a libinput gesture handler

[https://git.sr.ht/\~maringuu/swiper](https://git.sr.ht/~maringuu/swiper)
Hello r/linux

I really like having gestures on my trackpad and wanted to do some programming so I decided to write my own programm.

The main feature that I did not find in other gesture handlers are "continous" gestures which means that one command gets execute multiple times during one single gestures. One example is swiping up and down to adjust volume. Or switching workspaces.

​

The code is kind of wip in the sense that I can image some features that could be implemented sometime.

https://redd.it/fxvb96
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Setting up an email server in 2020 with OpenSMTPD and Dovecot
https://prefet.ch/blog/2020/email-server/

https://redd.it/fxt1ak
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Making a living during Coronavirus lockdown (with a little help from bash and Ubuntu Studio)
https://www.circusscientist.com/2020/04/09/making-a-living-during-the-coronavirus-outbreak-part-2/

https://redd.it/fy0qjt
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Distros on Distrowatch

I'm going to vent here a little bit...

So, I check the front page of Distrowatch on occasion and tonight I noticed a peculiar distro called EnTix. It was released on 4/2/20 and it's based on Ubuntu 20.04... Why would anyone build a distro around a beta version of anything? That just sounds like someone is looking for problems.

>The best thing with ExTiX 20.4 is that while running the system live (from DVD/USB) or from hard drive you can use Refracta snapshot (pre-installed) to create your own live installable Ubuntu 20.04 system.

So, you can create your own 20.04 beta system? OK...

I could see how this might be practical with a release but using it behind a beta version of anything doesn't sound like a great idea.

OK, I'm done venting.

https://redd.it/fyajs5
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LibreOffice QA/Dev Report: March 2020
https://qa.blog.documentfoundation.org/2020/04/09/qa-dev-report-march-2020/

https://redd.it/fyazu6
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How fast is too fast

I work for a company that created a monster of a hybrid computer (if that’s a thing). The purpose of the damn thing is for a VPS company running on 2X100 Gb/s PCI Cards, 3XMicron X100 SSD, and a NVIDIA® Tesla V100 and some custom configuration for the motherboard, Debian and a AMD EPYC 7601. When we put it into a data center we were amazed at how fast is was. However now we’re puzzled with “who would want this.” The question I’m asking is do people really want fast servers running Linux at the backend?

https://redd.it/fybyiy
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Mobile NixOS March 2020 round-up
https://mobile.nixos.org/news/2020-04-07-march-2020-round-up.html

https://redd.it/fyd9s2
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Making linux fast by disabling Spectre Meltdown Mitigations in the Kernel?

Recently I came across a hacker news [discussion](https://news.ycombinator.com/item?id=22830330) on disabling Spectre Meltdown mitigations in the kernel to make your machine faster. The whole premise is of course that a user/admin should be able to decide if they can tolerate the risk for performance benefits.

Someone also put the code snippet under a domain:
https://make-linux-fast-again.com/

What does the reddit community think about this?

https://redd.it/fydnjz
@r_linux

Git version control system hits 15 year milestone
https://www.itwire.com/the-linux-distillery/git-version-control-system-hits-15-year-milestone.html

https://redd.it/fyf1jr
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Git Becomes 15: Q&A with GitHub and GitLab
https://www.infoq.com/news/2020/04/git-fifteen-anniversary-qa/

https://redd.it/fyf2yj
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Turning Old TV Boxes into a "raspberry pi".

I don't know where to post this. Hello, I have some old tv bones and was wondering if it would be possible to convert them to an arm compatible Linux distro, like a raspberry pi. Has anyone done this? I was thinking about rooting the devices, then installing Linux. Would this work? How would I do this?

https://redd.it/fyhfyd
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Linux on Laptops: ASUS Zephyrus G14 with Ryzen 9 4900HS
https://arstechnica.com/gadgets/2020/04/linux-on-laptops-asus-zephyrus-g14-with-ryzen-9-4900hs/

https://redd.it/fygc3c
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Weekend Fluff / Linux in the Wild Thread - April 10, 2020

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/fyjwjj
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New version of Tails OS (4.5) came out, supports Secure Boot so no need to mess around with BIOS. Tails is an OS that protects your anonymity online by sending all connections thru Tor. Sites see exit relay IP Address and you can browse special sites ending in .onion. Spread to as many as possible!
https://tails.boum.org

https://redd.it/fyjack
@r_linux

I've crawled dotfiles on GitHub and want to share some statistic.

Most common window managers (extracted from `.xinitrc`)

* `exec i3`: 221
* `exec bspwm`: 129
* `exec dwm`: 96
* `exec awesome`: 28
* `exec xmonad`: 23
* `exec $(get_session)`: 21
* `exec openbox-session`: 15
* `exec emacs`: 8
* `exec startplasma-x11`: 7
* `exec sowm`: 6

Most common Bash aliases (`.bashrc`)

* `alias la='ls -A'`: 183
* `alias l='ls -CF'`: 178
* `alias ll='ls -alF'`: 158
* `alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'`: 144
* `alias ls='ls --color=auto'`: 83
* `alias grep='grep --color=auto'`: 48
* `alias ..='cd ..'`: 38
* `alias gs='git status'`: 36
* `alias mv='mv -i'`: 34
* `alias rm='rm -i'`: 30

Most common daemons (`.xinitrc`)

* `dunst &`: 88
* `sxhkd &`: 80
* `xsetroot -cursor_name left_ptr &`: 37
* `done &`: 30
* `numlockx &`: 29
* `unclutter &`: 28
* `nm-applet &`: 27
* `picom &`: 23
* `~/.fehbg &`: 21
* `compton &`: 19

Most common Vim set statements (`.vimrc`)

* `set expandtab`: 434
* `set number`: 415
* `set laststatus=2`: 339
* `set hlsearch`: 339
* `set shiftwidth=4`: 323
* `set nocompatible`: 312
* `set incsearch`: 307
* `set tabstop=4`: 300
* `set encoding=utf-8`: 291
* `set ignorecase`: 290

There is much more in the repo: https://github.com/Kharacternyk/dotcommon

If someone finds this interesting, he is encouraged to contribute! I'm not the only one who finds this interesting, right?

https://redd.it/fyll8s
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IDEs on Linux?

Hey, so I'm a programmer like I'm sure a lot of Linux users are. I've been interested in Linux pretty much my entire life, and recently made the switch to Linux (yay)! On Windows, I used visual studio for programming, which isn't available on Linux. I mostly code in Java, C++, Python, and do some Web Development stuff. I just wanted to know what IDE, or groups of IDEs, I could use for these languages. I've heard of Visual Studio Code, and I like it, but I want to know what other options there are. Thank you guys for your time <3.

https://redd.it/fym4ee
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Clean and reliable setup for dependency installation
https://www.collabora.com/news-and-blog/blog/2020/04/10/clean-reliable-setup-for-dependency-installation/

https://redd.it/fyk2lz
@r_linux

Week 4 of quarantine, I stumbled across a KDE Window Manager setting and got triple monitor gaming to work in Manjaro!
https://redd.it/fyp8hk
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Where to find a list of open source "service" companies? If you know any companies, I'd love to know!

Hey friends!

I'm trying to learn more about the open source "services" market. I think that it is going to grow significantly in the coming decade.

**Does anyone know any open source "services" companies?**

**Is there any publicly available list?**

**Does anyone know the best way to identify open source "services" companies?**

What does an open source "services" company do? They offer services around open source software like [RedHat](https://www.redhat.com/en) does for support and [Quansight](https://www.quansight.com/) does for consulting, support and customization. A non-exhaustive list of services may include:

* support (bug fixes, customization, 24/7 help etc),
training
* customization (new features added to open source projects)
* hiring/placement (high demand open source contributors)
* managed services
* migration services
* mentorship

I'd love to discuss this with y'all!

Thanks for your help in advance.

https://redd.it/fyl4m9
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