A gentle introduction to Linux Kernel fuzzing
https://blog.cloudflare.com/a-gentle-introduction-to-linux-kernel-fuzzing/

https://redd.it/cbgq10
@r_linux

I have 1 month to prepare for my Linux+ (XK0-004) exam, is this enough study material?

I have this book

[https://www.amazon.com/gp/product/B0143PXC6Q/](https://www.amazon.com/gp/product/B0143PXC6Q/)

​

I am also using these udemy video courses

[https://www.udemy.com/introduction-to-linux-centos-7/](https://www.udemy.com/introduction-to-linux-centos-7/)

[https://www.udemy.com/tutorial/linuxforbeginners/installing-centos-from-scratch/](https://www.udemy.com/tutorial/linuxforbeginners/installing-centos-from-scratch/)

[https://www.udemy.com/linux-mastery/](https://www.udemy.com/linux-mastery/)

[https://www.udemy.com/linux-shell-course-for-beginners/](https://www.udemy.com/linux-shell-course-for-beginners/)

​

and thats basically it. Will I do fine on just this alone?

​

P.S. I feel I should mention I have no prior experience with Linux, but I have CentOS installed in a Virtual Box to practice commands in.

https://redd.it/cbgvg0
@r_linux

A long standing kernel driver bug in snd_hda_intel affecting AMD platforms using Realtek audio codecs has existed since 2017. It causes static/distortion on both input and output channels. Can we get this some visibility to help move toward a resolution?
https://bugzilla.kernel.org/show_bug.cgi?id=195303

https://redd.it/cbijks
@r_linux

Fire Up Your VMs with Weave Ignite
https://www.weave.works/blog/fire-up-your-vms-with-weave-ignite

https://redd.it/cbhoq3
@r_linux

TIL that Snappy package manager has a proprietary backend, its not open source software
https://en.wikipedia.org/wiki/Snappy_(package_manager)

https://redd.it/cbjmjn
@r_linux

Story about linux rescue after rm -rf /

Some times ago I read a story about two guys who rescued a linux system after canceling the `rm -rf /` command.

Do you know the story and could you give me the link?

Would be very nice!

Thanks!

https://redd.it/cblw25
@r_linux

Sandboxing a folder

Hi there!
I'm running a server using Debian 10.0.0 (Just upgraded), and i have a really unique folder structure i have made for myself:
/home/user/dns: folder with domain subfolders which contain certs and DDNS passwords
/home/user/web: folder with domain subfolders which contain actual websites and applications
/home/user/hosts: folder with .conf files for each domain, because i run 20+ domains from my system.

what i am trying to get, is isolation between the directories in /home/user/web themselves and the system.

i want to be able to run a risky php in one of these directories and not worry about command execution and accessing files in a parent directory.

can that be done somehow?

(i really dont wanna run docker or kubernetes, just a native solution if there's one, or a really simple one.)

if you want to check out the folder structure of one of my websites to understand what im talking about: https://github.com/NadavTasher/WebAppBase

Thanks in advance!

https://redd.it/cbmixj
@r_linux

Hackers Infect Pale Moon Archive Server With a Malware Dropper
https://www.bleepingcomputer.com/news/security/hackers-infect-pale-moon-archive-server-with-a-malware-dropper/

https://redd.it/cbmv8w
@r_linux

When gnome used less resources than vista...
https://redd.it/cblm07
@r_linux

Arm CPUs and software

So I plan on getting the pinebook pro once it releases, and I'm curious what do people think of arm on Linux? Plan on either running what it comes with or manjaro arm. What's the software availability like?

https://redd.it/cbnu6z
@r_linux

Support for ACPI CPPC2 (for Ryzen 3000) in cpufreq?

I am not a Linux expert, so please forgive and correct me if I say something wrong here.

With the Skylake architecture Intel added something branded as [SpeedShift](https://www.anandtech.com/show/9751/examining-intel-skylake-speed-shift-more-responsive-processors) which is enabled by using the [intel_pstate cpufreq](https://unix.stackexchange.com/questions/513330/does-linux-kernel-support-intel-speed-shift) driver with HWP enabled. This technology allows the OS to hand control of P-states back to the processor so the processor selects what P-state it is in. This reduces the time taken to transition between states when a load is applied.

Now with the Ryzen 3000 series, AMD has added similar functionality called "[Collaborative Power Performance Control 2 \(CPPC2\)](https://www.sqlskills.com/blogs/glenn/category/glenns-tech-insights/)". Sorry for the article, it's the only I could find that discussed this in detail. This appears to be an ACPI spec, not a proprietary implementation (?). With that in mind, AMD's recent focus on open-source software, and the fact that AMD does not have a custom cpufreq driver, I would expect support for this feature to be rolled into the default cpufreq.

Has there been any discussion about adding CPPC2 support for hardware P-state control to cpufreq? If it already exists, how would I turn it on? [Here is a patch](https://patchwork.kernel.org/patch/7539651/) that enables it for ARM only, but I can't find anything about enabling this for x86 - probably because this is the first(?) x86 processor release to support this.

https://redd.it/cbl2um
@r_linux

RoyalTS Linux Equivalent

Hi all,

I've done a fair bit of looking online but can't seem to find a solid answer to my query.

I'm looking for a Linux equivalent to Royal TS because as much as I love working in command line I simply prefer a more structured GUI layout to manage my RDP, SSH, Telnet sessions. I also like that Royal TS on Windows can autocomplete logins for certain webpages that I bookmark on there.

Aside from the obvious "use commandline" suggestions; I've seen and looked at Remmina and it still doesn't complete my needs nor is is anywhere near as polished as Royal TS.

So I look to my community brethren and ask - is there anything I've missed that is close to the polished state of Royal TS that I can use on linux?

I look forward to seeing everyones answers.

https://redd.it/cbpreg
@r_linux

Simple way to switch ON Caps & Num lock in Linux Mint
https://www.tecdig.com/visual-indicator-for-caps-lock-and-num-lock/

https://redd.it/cbq5cd
@r_linux

Media Server Tips Wanted: Originally posted in r/LinuxServer
https://www.reddit.com/r/LinuxServer/comments/cbrfzw/very_basic_questions_sorry_in_advance/

https://redd.it/cbrosn
@r_linux

Samba will have SMB1 disabled by default with upcoming v4.11

> SMB1 is disabled by default
> ----------------------------------------

> The defaults of 'client min protocol' and 'server min protocol' have been changed to SMB2_02.

> This means clients without support for SMB2 or SMB3 are no longer able to connect to smbd (by default).

> As Microsoft no longer installs SMB1 support in recent releases or uninstalls it after 30 days without usage, the Samba Team tries to get remove the SMB1 usage as much as possible.

> SMB1 is officially deprecated and might be removed step by step in the following years. If you have a strong requirement for SMB1(except for supporting old Linux Kernels), please file a bug at https://bugzilla.samba.org and let us know about the details.

ref: https://download.samba.org/pub/samba/rc/samba-4.11.0rc1.WHATSNEW.txt

https://redd.it/cbrxtb
@r_linux

Simplest way to switch ON visual indicator for Caps lock | Linux Mint
https://www.tecdig.com/visual-indicator-for-caps-lock-and-num-lock/

https://redd.it/cbrcqn
@r_linux

Like Linux? Then don’t buy Dell’s new XPS 13.
https://medium.com/@asmichx/like-linux-then-dont-buy-dell-s-new-xps-13-78952ae8e8bd?source=---------2------------------

https://redd.it/cbtg0u
@r_linux

Akademy 2019 schedule is now available: Virtual Reality, AIs and the future of KDE's goals are just some of the topics we'll be talking about
https://dot.kde.org/2019/07/11/akademy-2019-talk-schedule-out

https://redd.it/cbtacc
@r_linux

Best Linux Networking Tools That You Should Know - via Julia Evans
https://redd.it/cbufn7
@r_linux

ONLYOFFICE Desktop Editors v5.3 now available! In my personal experience, ONLYOFFICE has been the most compatible with MS Office unlike LibreOffice and WPS.
https://www.onlyoffice.com/blog/2019/07/onlyoffice-desktop-editors-v-5-3-all-recent-features-are-now-available-offline/

https://redd.it/cbu6c7
@r_linux

Manjaro. Second monitor don't detecting.

Manjaro.

My second monitor just don't work .

On windows 10 it works.

​

​

xrandr -q

​

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767

eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 340mm x 190mm

1920x1080 60.01\*+ 59.93 47.10

1680x1050 59.95 59.88

1400x1050 59.98

1600x900 60.00 59.95 59.82

1280x1024 60.02

1400x900 59.96 59.88

1280x960 60.00

1368x768 60.00 59.88 59.85

1280x800 59.81 59.91

1280x720 59.86 60.00 59.74

1024x768 60.00

1024x576 60.00 59.90 59.82

960x540 60.00 59.63 59.82

800x600 60.32 56.25

864x486 60.00 59.92 59.57

640x480 59.94

720x405 59.51 60.00 58.99

640x360 59.84 59.32 60.00

DP1 disconnected (normal left inverted right x axis y axis)

VIRTUAL1 disconnected (normal left inverted right x axis y axis)

​

​

What to do?

https://redd.it/cbv2ri
@r_linux