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agc.mastodon.social.ap.brid.gy
agc
@agc.mastodon.social.ap.brid.gy
9 followers 2 following 5 posts
Big guy

[bridged from https://mastodon.social/@agc on the fediverse by https://fed.brid.gy/ ]
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Reposted by agc
jschauma.mstdn.social.ap.brid.gy
System Administration, Week 1: Warming up to EC2

In this short video, we prepare for our first homework assignment and demonstrate how to launch a #NetBSD instance in AWS EC2.

https://www.youtube.com/watch?v=cA_pgRH0IDw

Note: the AMI in the video is outdated; I have up to date images listed […]
Original post on mstdn.social
mstdn.social
January 30, 2026 at 2:43 PM
Reposted by agc
imil.bsd.cafe.ap.brid.gy
Creating and booting a minimal NetBSD USB stick created using smolBSD Dockerfile new capability!
https://indymotion.fr/w/7e2rQwCbb3X74nGWvYgkdi
Building a minimal NetBSD bootable USB stick using a smolBSD Dockerfile
This is screen capture of an interactive session where we build a NetBSD USB bootable stick using smolBSD's Dockerfile interpretation feature. More info at https://github.com/NetBSDfr/smolBSD
indymotion.fr
January 26, 2026 at 9:14 AM
Reposted by agc
jschauma.mstdn.social.ap.brid.gy
This semester, I'm teaching my class on System Administration / Internet Operations once again.

The syllabus and all course materials are available here:

https://stevens.netmeister.org/615/

All videos for the lectures and exercises are public and available for free on YouTube […]
Original post on mstdn.social
mstdn.social
January 24, 2026 at 2:31 PM
Reposted by agc
imil.bsd.cafe.ap.brid.gy
Create a smolBSD image using a Dockerfile https://github.com/NetBSDfr/smolBSD/tree/main?tab=readme-ov-file#create-a-smolbsd-image-using-a-dockerfile
January 23, 2026 at 5:33 PM
Reposted by agc
matthewdgreen.bsky.social
Microsoft is handing over Bitlocker keys to law enforcement. www.forbes.com/sites/thomas...
Microsoft Gave FBI BitLocker Encryption Keys, Exposing Privacy Flaw
The tech giant said providing encryption keys was a standard response to a court order. But companies like Apple and Meta set up their systems so such a privacy violation isn’t possible.
www.forbes.com
January 23, 2026 at 1:59 PM
Reposted by agc
charlotte.akko.chir.rs.ap.brid.gy
there are five hand problems in software development:

1 naming things
3 absolute ordering
2 cache in5 concurrencyvalidation
́4 exactly-once delivery
6 off by one errors
4 exactly-once delivery
January 14, 2026 at 8:52 AM
Reposted by agc
imil.bsd.cafe.ap.brid.gy
Following on this, smolBSD has now a convenient feature that allows the host to pass variables and files to the guest:

$ ./startnb.sh -i images/base-amd64.img -k kernels/netbsd-SMOL -e FOO=BAR -E hosts=/etc/hosts
➡️ using QEMU version 8.2.2 (Debian 1:8.2.2+ds-0ubuntu1.11)
➡️ using kernel […]
Original post on mastodon.bsd.cafe
mastodon.bsd.cafe
January 10, 2026 at 11:03 AM
Reposted by agc
bsd.cafe
A few days ago, a client’s data center "vanished" overnight. My monitoring showed that all devices were unreachable. Not even the ISP routers responded, so I assumed a sudden connectivity drop. The strange part? Not even via 4G.

I then suspected a power failure, but the UPS should have sent an […]
Original post on mastodon.bsd.cafe
mastodon.bsd.cafe
January 8, 2026 at 9:16 AM
Reposted by agc
streetartutopia.mastodon.online.ap.brid.gy
Smart 🥸

What is the best/most fun snow sculptures you made/seen? I will put them in a post on the blog.

Funny Snow Sculptures (10 Photos): https://streetartutopia.com/2026/01/02/funny-snow-sculptures-10-photos/
A dark-humor snow sculpture in a suburban yard shows a large, rough snowman holding what appear to be a pair of children’s legs sticking out of its mouth, creating the illusion that the snowman has eaten a child. The legs wear blue jeans and red-and-black sneakers, with twig arms extending from the snowman’s sides. Patchy snow covers the ground, with a house wall visible in the background. White text at the top reads, “How to keep the neighbor kids out of your yard this winter…”, turning the scene into a provocative visual joke.
January 1, 2026 at 10:13 PM
Reposted by agc
gwaldby.mastodon.social.ap.brid.gy
The San Francisco Ballet has 7 performances scheduled at the Kennedy Center, May 27-31. You may email their Director of Events Chloe Mecum at [email protected]
#kennedycenter
December 31, 2025 at 2:06 AM
Reposted by agc
Dirty Van Art (8 Photos)
This collection focuses on drawings made directly into layers of dust and road grime on parked vans and trucks. The works range from detailed portraits and animals to pop-culture figures and quiet narrative scenes. Featured here are pieces by ProBoyNick (Nikita Golubev) in Moscow and James Gibson in the UK, where dirt becomes both surface and medium. 🔗 Follow ProBoyNick on Instagram and Dirty Van Art on Facebook 1. Seated Winged Figure A winged human figure is drawn into the dirt on […]
streetartutopia.com
December 29, 2025 at 11:18 AM
Reposted by agc
imil.bsd.cafe.ap.brid.gy
These NVMM and QEMU (pkgsrc for now) patches add a new `prefault` parameter to the nvmm QEMU accel so guest physical addresses are prefaulted instead of demand-paged, resulting in a modest x10 to x50 kernel load speed https://imil.net/NetBSD/nvmm_prefault.patch
December 27, 2025 at 10:34 AM
Reposted by agc
bobc7000.mastodon.social.ap.brid.gy
😍
#guitar #musicians #music
December 27, 2025 at 1:08 PM
Reposted by agc
jschauma.mstdn.social.ap.brid.gy
I finally jotted down a table of in how far the big three browsers currently support RFC9460 HTTPS records.

In summary:
- All browsers support ALPN
- Safari has the best support; it's the only browser that supports AliasMode, but Safari doesn't support ECH
- […]

[Original post on mstdn.social]
A table mapping browsers to capabilities: Chrome Firefox Safari AliasMode ❌ ❌ ✅ ALPN ✅ ✅ ✅ ECH ✅ ✅ ❌ IP Hints (no A / AAAA) ❌ ❌ ✅ IP Hints (with A / AAAA) ❌ ✅ ✅ Port ❌ ✅ ✅
December 12, 2025 at 10:11 PM
Reposted by agc
lukesteuber.com
I made a Chrome extension that swaps Times New Roman for Calibri on every site or just .gov. It also had Open Sans and Open Dyslexic, because f**k these people.

I’m waiting for Google’s approval for it to install automatically, but you can download it and install it in 90 seconds. Instructions 👇
ReCalibri
They always make us do everything ourselves, anyway
Dr.eamer.dev
December 11, 2025 at 10:03 AM
Reposted by agc
jschauma.mstdn.social.ap.brid.gy
Advanced Programming in the Unix Environment

The entire semester in one 157 slides deck: https://stevens.netmeister.org/631/f25.pdf

Full playlist on youtube of all 72 video lectures: https://www.youtube.com/watch?v=BsB9Cg6yJc4&list=PL0qfF8MrJ-jxMfirAdxDs9zIiBg2Wug0z

#apue #Unix #Programming
December 9, 2025 at 4:04 AM
Reposted by agc
imil.bsd.cafe.ap.brid.gy
I've integrated @khorben 's new kernel feature into smolBSD: -I flag will instruct QEMU to load the image in an initrd RAM disk.While at it I made smol images smoler, here's an example of a fast, read only user shell microvm with basic UNIX tools and ssh client, all in 50MB […]
Original post on mastodon.bsd.cafe
mastodon.bsd.cafe
November 30, 2025 at 7:47 AM
Reposted by agc
jschauma.mstdn.social.ap.brid.gy
Nice, Amazon AWS is really stepping up #PQC support at last. In addition to S3, they now also offer TLS 1.3 PQC hybrid key exchange on Application Load Balancers (ALB) and Network Load Balancers (NLB) […]
Original post on mstdn.social
mstdn.social
November 25, 2025 at 3:08 PM
Reposted by agc
sundogplanets.mastodon.social.ap.brid.gy
I haven't yelled that many (overwhelmingly excited) swear words at the sky for a long time. WWOOOOOWWWWW. Reddest auroras I've ever seen!! Usually it takes a long time exposure/CCD camera to see red at all. This is BRIGHT!! You can actually see easily outside […]

[Original post on mastodon.social]
A bright red arc over a bright green arc, with some small trees silhouetted below Looking straight up at red and green pillars Looking straight up at red and green pillars, some are almost white. Bright red auroras peeking through bright green auroras, with some silhouetted trees below
November 12, 2025 at 1:28 AM
Reposted by agc
arclight.oldbytes.space.ap.brid.gy
Whatever brain genius thought up paying by cell phone in massive concrete parking ramps needs to be abandoned in the desert with no water, 5% phone charge, and zero bars of cell service.

Peak web startup mentality. Great job there chief, Ruby-on-Railsing your way past EM wave propagation […]
Original post on oldbytes.space
oldbytes.space
November 11, 2025 at 6:35 PM
Reposted by agc
imil.bsd.cafe.ap.brid.gy
WOAAAA!!!! #smolbsd with libkrun on aarch64!! By the one and only @slp ❤️

https://x.com/slpnix/status/1984400857077572027?t=h59EGz3mWrbKtTDdlq6fOA&s=19
November 2, 2025 at 7:04 AM
Reposted by agc
brucelawson.vivaldi.net.ap.brid.gy
Following Rishi Sunak and Nick Cleggs' move to advising tech companies, let's all wish Liz Truss well on her first day at Amazon Web Services.
October 20, 2025 at 9:09 AM
Reposted by agc
jschauma.mstdn.social.ap.brid.gy
Related to our discussion of time(3), here's a deeper dive into the Unix epoch, its origins, and how the Y2K38 issue actually affects different unix systems well before the heat-death of the universe.

https://www.netmeister.org/blog/epoch.html

#apue #Unix #Programming #Time
Time is an illusion, Unix time doubly so...
Unix counts time as seconds since the epoch. Seems straight forward. What could possibly go wrong?
www.netmeister.org
October 8, 2025 at 1:54 PM
Reposted by agc
imil.bsd.cafe.ap.brid.gy
LUTINOS! à vous la beauté des (vrais) microsevices, le live d'hier soir est en ligne et il vous apprendra *ENFIN* à créer facilement votre propre microvm NetBSD qui démarre... ce que vous voulez.
Enjoy https://youtu.be/yiWTi18oG8M et partagez vos expériences !
October 3, 2025 at 6:32 AM
Reposted by agc
imil.bsd.cafe.ap.brid.gy
KNOCK KNOCK LUTINOS!
Connaissez-vous notre sauveur smolBSD?
Ce soir je vous montre comment implémenter une microvm de bounce SSH qui se déclenche sur port knocking 🚪
Rendez-vous à 20h sur https://twitch.tv/imilnb
October 2, 2025 at 5:17 AM