Advanced routing on Linux

I'm having a problem with a Linux based router with a non-trivial setup. I was wondering if there are some recommendations on where to read up on advanced routing. The problem in a nutshell: packages coming from VLANs (which I see coming in with tcpdump) are not being forwarded to their destination to the other, directly connected networks. No idea why or how to debug the routing decisions of the kernel.

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btw: the router has multiple NICs, 2 of them are bonded into bond0 and serve as a trunk. On bond0 I have several VLAN interfaces towards the internal networks, these interfaces have the IP addresses.

https://redd.it/mbc5vc
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Good mini PC to run a firewall?

Hello,

I'm looking for recommendations to run a firewall at home. At the moment I'm using an Ubiquiti Edgerouter 4. I'm looking to replace it with a mini PC with at least one SFP+ port to handle a symmetric 2Gbps Internet connection.

Something like this https://shop.opnsense.com/product/dec840-opnsense-desktop-security-appliance/

https://redd.it/mbbocj
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Advice on a convertible notebook for Linux

Hello,

I am about to switch to Linux for the first time ever.

I plan to get a convertible notebook, probably either a Lenovo, or a Dell, or an Asus device, and install Debian on it. Convertibles in general seem to be going a bit out of fashion, and although Asus seems to have the widest selection of models, I'm leaning towards Dell.

Can you recommend a brand, and should I expect any hardware issues with a convertible?

Thanks for advice,

s

https://redd.it/mbarkt
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How often should I rotate my ssh keys?
https://tailscale.com/blog/rotate-ssh-keys/

https://redd.it/mbdqhv
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Firefox 87.0 released
https://www.mozilla.org/en-US/firefox/87.0/releasenotes/

https://redd.it/mbfr04
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What advice do you have for my son who is into Linux?

My son is in elementary school. For some weird reason, he is into Linux. He reads books on Linux. Martin helmke, Linux Bible, cur rently reading Linux Command Line, autobiography by Torvalds etc. He knows a lot of the terminology - he says stuff related to KDE, GNOME, distro, etc. which I dont understand. I am assuming that is fairly simple stuff but I cannot tell how deep his knowledge goes.

I looked up these forums and realized that he should not just read but also actively do. So sometimes we sit together and tinker around with the command line on his Raspberry Pi.

What else should he be doing? He is in it purely out of interest. So can you recommend any new activities, any other books? If he continues, what should he do next? With coding, usually you make an app or create websites etc when you are older. What do you do with knowledge in Linux?

Also, is there another subreddit I can ask this question?

Edit: Thanks to everyone for your encouragement, comments and suggestions. I will look into each and everyone of them.

https://redd.it/mbg14f
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Announcing the release of Fedora Linux 34 Beta
https://fedoramagazine.org/announcing-the-release-of-fedora-34-beta/

https://redd.it/mbfivx
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Dr. Marshall Kirk McKusick talks about the TCP/IP wars and UNIX.
https://vimeo.com/526183538

https://redd.it/mbhw3a
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System76 engineer interview with Louis Rossmann on right to repair.
https://odysee.com/@rossmanngroup:a/system76-laptop-engineer-supports-right:c

https://redd.it/mblru8
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OSI response to Richard Stallman's reappointment to the Board of FSF
https://opensource.org/OSI_Response

https://redd.it/mbnkyn
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One shortcut to search docs and Stack Overflow at the same time from our desktop app
https://redd.it/mbnu9y
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The junior sysadmin course at r/LinuxUpskillChallenge restarts shortly


This free month-long course is re-starting again on the first Monday of next month.

Daily lessons appear in the sub-reddit /r/linuxupskillchallenge - which is also used for support/discussion.

Has been running successfully now every month since February 2020 - more detail at: https://LinuxUpskillChallenge.org

- Steve

https://redd.it/mbonjn
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I think I just found an easter egg in TeXstudio?
https://redd.it/mbq8jg
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Linux doesn't need marketing, it needs hardware
https://tilvids.com/videos/watch/489a3db3-de98-4006-83b9-319b8374f63a

https://redd.it/mbq1jk
@r_linux

Crystal v1.0.0 has been released!
https://github.com/crystal-lang/crystal/releases/tag/1.0.0

https://redd.it/mbjny2
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My saga with the almighty Gentoo continues.

Just started with merging the 276 packages of Plasma 5.

Nvidia driver is installed and working...

Luckily there are binary packages for Firefox and LibreOffice. :)

This experiment is being very educational.

Started this today 3PM... Its now 9:33PM...

5 hours and 33 minutes... Not bad :)

https://redd.it/mbt5wy
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issue with steam games (fedora)

hey yall, I've recently started Linux and im having some issues, Ive successfully installed and have been running steam.

The issue Ive been facing is a game called loop hero is not launching, the preparing to launch box pops up for half a second then nothing happens...

Any ideas?

https://redd.it/mbw9yv
@r_linux

RoshanOS 1.1 released. RoshanOS is developed specially for Windows users. You may try but I suggest you to offer it to Windows users only. Video: https://youtu.be/74x03RrLmlY. Download: https://sourceforge.net/projects/roshan-os/
https://redd.it/mbv5ar
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Create Your First Helm Chart (Part 03)
https://blog.opstree.com/2021/03/23/create-your-first-helm-chart-part-03/

https://redd.it/mbjal1
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How screen capture softwares are built?

I'd like to get an insight on how these kind of screenshot or video recorder softwares are built. Do they read /dev/fb? They mess with video drivers and the gpu raw output? They work with the compositor? Wayland? Xorg? Framebuffer? Kms?

I checked Spectacle source code and got pretty far, but did not understand where a read function call come from

It's too much terms, someone please give me an insight on how I could build a proof of concept of a screen recording app

https://redd.it/mbyikr
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Linus Torvalds on where Rust will fit into Linux

https://www.zdnet.com/article/linus-torvalds-on-where-rust-will-fit-into-linux/

https://redd.it/mbyjqj
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