b4 0.11.0 is available

Many improvements to the contributor-oriented features (b4 prep, b4 trailers, b4 send). If you haven't tried those out yet, please check them out, they are documented here:

https://b4.docs.kernel.org/en/stable-0.11.y/contributor/overview.html

Release announcement:

https://lore.kernel.org/tools/20221219213715.2qozw5emt5j7t3xr@nitro.local/

#b4

Would #JohnMastodon be considered a megafounder? 🤔

PSA: just having a DKIM-Signature: header in your email isn't really enough, unless it has a d= part matching your From: address.

E.g., this is good:

From: foo@example.com
DKIM-Signature: v=1; d=example.com; [...]

This, on the other hand, serves no real purpose outside of Google:

From: foo@example.com
DKIM-Signature: v=1; d=example-com.20210112.gappssmtp.com; [...]

When there is no DKIM alignment, DMARC-enforcing servers will fall back to only using the SPF record, which doesn't work at all with mailing lists unless they rewrite the From: header.

So, please-please properly set up your DKIM infrastructure if you send messages to mailing lists. Or at the very least don't put p=reject into your DMARC policy.

Does the Tesla executive board loudly beep at you when everyone's asleep at the wheel? I think we're at the point where they have to consider cordoning off the Twitter dumpster fire.

I need a "don't blame me, I bought this car before Elon went gaga" sticker.

📢

The #LinuxSecuritySummit announcement channel has moved here, to social.kernel.org, from Twitter (previously: https://twitter.com/LinuxSecSummit).


#kernel #linux #security #infosec #selinux #apparmor #smack #landlock #lsm #linuxfoundation #lf #conference

Why is Google Groups "Collaborative Inbox" *SO BAD*? It feels like a summer intern project that was abandoned 10 years ago.

I did a lot of tweaking and then a lot of untweaking to social.k.o database and elixir backends this morning. Hopefully, this had a net positive result -- many queries are a lot faster now.

Sorry if you had a rough ride in the past few hours. #meta

Desire to switch to akkoma increasing.

Apparently, running some of the "database maintenance tasks" can seriously peg pleroma's database backend. I think I managed to fix most of the problems that caused. Sorry if you've been getting 500 errors.

I didn't end up releasing b4-0.11 today, since I ended up rewriting some hurky code in it and it needs to go for another round of testing.

Hopefully, 0.11 will be out on Tuesday.

#b4

Sometimes you write a piece of code that is "hacky," but kinda clever. Well done.

Other times, you write a piece of code that is both a nasty hack and really quite terrible to look at. That code isn't just hacky, it's downright "hurky." It's called that, because that's the sound you make at the back of your throat when you look at it.

I may be the only person who says "hurky," but now you can start saying that, too.

You're welcome.

(Hopefully in the context of fixing hurky code, not writing it.)

@toke let me know if the changes I pushed to the config helped at all.

b4 v0.11 should be out by the end of the week. There are improvements and new features for both maintainers and contributors, so if you're a regular user of b4, I would appreciate if you try the latest master.

https://lore.kernel.org/tools/20221206215340.556ov3bdfyf3qvyy@meerkat.local/

Okay, so let me tell you about my doorbell, from a #networking perspective.

When you push the button by the door, it sends a message over the #zigbee wireless mesh network in my house. It probably goes through a few hops, getting relayed along the way by the various Zigbee light switches and "smart outlets" I have.

Once it makes it to my utility closet, it's received by a Zigbee-to-USB dongle, through a USB hub (a simple tree network) plugged into an SFF PC. From there, it gets fed into zigbee2mqtt, which, as the name implies, publishes it to my local #mqtt broker.

The mqtt broker is in the small #kubernetes cluster of #raspberrypi nodes I run in my utility closet. To get in (via a couple of #ethernet switch hops), it goes through #metallb, which is basically a proxy-ARP type service that advertises the IP address for the mqtt endpoint to the rest of my network, then passes the traffic to the appropriate container via a #linux veth device.

I have #HomeAssistant, running in the same Kubernetes cluster, subscribed to these events. Within Kubernetes, the message goes through the CNI plugin that I use, #flannel. If the message has to pass between hosts, Flannel encapsulates it in VXLAN, so that it can be directed to the correct veth on the destination host.

Because I like #NodeRed for automation tasks more than HomeAssistant, your press of the doorbell takes another hop within the Kubernetes cluster (via a REST call) so that NodeRed can decide whether it's within the time of day I want the doorbell to ring, etc. If we're all good, NodeRed publishes an mqtt message (more VXLANs, veths, etc.)

(Oh and it also sends a notification to my phone, which means another trip through the HomeAssistant container, and leaving my home network involves another soup of acronyms including VLANs, PoE, QoS, PPPoE, NAT or IPv6, DoH, and GPON. And maybe it goes over 5G depending on where my phone is.)

Of course something's got to actually make the "ding dong" sound, and that's another Raspberry Pi that sits on top of my grandmother clock. So to get *there* the message hops through a couple Ethernet switches and my home WiFi, where it gets received by a little custom daemon I wrote that plays the sound via an attached #HiFiBerry board. Oh but wait! We're not quite done with networking, because the sound gets played through PulseAudio, which is done through a UNIX domain socket.

SO ANYWAY, that's why my doorbell rarely works and why you've been standing outside in the snow for five minutes.

I hate it when I implement something and then immediately think of a better way to do it.

#b4

Periodic reminder not to set your system hostname to "linux.com". I really don't want to see your cPanel alerts.

.plan files + finger = the original microblogging platform

Me: I just want to send this 8bit message, k?
SMTP Elder Gods: Repent, ye puny mortal.