The Linux AX.25 Stack: A Forgotten Feature That Is Used To Talk To Space Stations!

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Did you know that Linux has the ability to communicate with space stations? That's what AX.25, a layer 2 protocol, is used for, and in this video, I discuss the history of AX.25, it's use on early TCP/IP networks, how it used to make terristal contacts via amateur radio on Earth, and then use it to communicate with the International Space Station. This is a project anyone with a basic Amateur Radio license can use to route network traffic between nodes, including space stations in Low Earth Orbit.

[lucyinchat]

To the one place uncorrupted by proprietary software, Space!

Secondarily, I am the target audience for this video.

[bartlomiejm]

next episode: how to send fax via command line using some obscure protocol (using pre-alpha ReactOS)

[dashorken]

Ax.25 is still alive and kicking be it through AGW, TCP-KISS, KISS or yes.. native Linux (I'm the maintainer of Linpac for Linux). if you come back to the project, check out packet over HF, AMPRnet, the many pockets of large packet networks in Northern California, etc. All this works for Linux, Mac, Windows and more.

[BotkillaK]

Came for the linux kernel stayed for the obscure radio lore. Good vid

[codewizard]

I wrote an X25 driver for Ultrix in the mid 80s. In the UK JANET was initially OSI based stack and later switched to TCP/IP : )

[jonstill]

Thanks for the video. Nice to see a video on AX.25 by someone who clearly understands it, rather than just a “how to use it” video. Cheers and I hope your life changes bring you whatever it is you need the most!

[tter]

I was really happy when you need a chromebook hacked, i had fun helping on the stream
also, hope everything you are trying is working irl

[scsirob]

Heh.. I ran a HAM radio Packet Radio node in The Netherlands (PI1NOS/PI8NOS). When I switched to Linux I found a couple of bugs in the 8530 SCC driver, submitted patches for it. Nice to see the subsystem is still there!

[team_alt_und_blind]

Used it for packet radio on CB in Germany in the mid 90s! Thanks for this professional made Video!

[torchristofferson]

This is the first video of yours I have seen and most definitely earned my subscription! I'm a long time ham and Linux nerd. You explained things extremely well in this video.

[milohoffman]

From what I remember you can use the Linux AX.25 to actually do an IP connection (very slow) over packet and but actually telnet or ftp between two stations over packet radio.

[georgH]

I've always wondered about the radio section in the kernel, and finally I know a bit!
Thank you that was amazing!

[TalmidAndy]

It is interesting to listen to an explanation of AX.25 presented as a networking subject for non radio operators.

[robertfurr]

3:48 I have this as a poster on my wall! It was a lucky find at a garage sale and an excellent talking piece, even if it is from the late 90s.

[ThePolishCan]

did not expect a life update in the video, wow, back on the track...
So the kernel stack works, but it needs to work better. That keyboard to keyboard communication was a nice addition, so was the mention of packet radio BBS-s, which I didn't even know they existed (imagine, we could have the BBS back in the 70's...). Good vid

[bennetfox]

Aww man I haven't seen a make menuconfig or compile a Linux kernel in a time!!

[MaxUgly]

You have a knack for niche like no other! Always facinating stuff from Ncommander, man

[sinisterpisces]

This is awesome. I love the history and explanation of how it works before even getting to how to use it. You pack so much information into a relatively short amount of time. I really feel like I better understand the subjects of your videos after I watch them, instead of just having a list of buttons to press and knobs to twiggle to get a result from the black box machine.

[thebitbeast]

5:17 First layer is physical not network. Easier to remember as a sentence: Please Do Not Throw Salami Pizza Away

[crusaderanimation]

0:30 Not to make y'all feel old but i'm grown working adult and 2001 is before i was even born (last day of 2002)