Brad Fitzpatrick 🌻
@bradfitz
Followers
50K
Following
101K
Media
4K
Statuses
26K
I do computers. Married to @radkat. 3 kids. Xoogler. @golang team '10~'20. Made LiveJournal, memcached. Now @Tailscale. Mostly in bluer skies these days.
Joined January 2007
Kid just asked me whether there was a negative zero. I knew this day would come but I wasn't quite ready to have The Talk about IEEE 754 quite yet.
77
687
7K
Network interface naming. Linux: "wlan0". macOS: "en1". Windows: "The Broadcom 802.11 Network Adapter provides wireless local area networking.".
30
338
3K
Handed in my corp devices and badge! Bye, Google!. Officially unemployed.
89
33
2K
I can't keep up with the news lately (and most of it's depressing), but the #HongKong protests seem like the most optimistic thing that's happening in the world lately. We're cheering for you, Hong Kong! 🇭🇰 (well, most of us, except stupid corps and bots).
328
479
2K
@ScottBatemanMan @jeremypgordon I see a few dozen emails with your name! Including a few 2000-2003 PayPal receipts. Thanks for supporting LJ!
8
11
1K
Today LiveJournal is 20 years old. 🐐🎂🎉 It's a few months older but before that it was a CGI script I copied to friends who ran it on their own servers. Today is domain anniversary. Hosting it for others helped it grow. :).
30
197
937
OpenSSL. Fixing CVE-2016-6307 caused CVE-2016-6309 and CVE-2016-7052? Can't make this up.
6
901
878
Coworker closes laptop lid in sadness and frustration at some code. Coworker 2 asks why he doesn't throw his laptop across the room. "Because I'm afraid I'd then need to upgrade to one with USB-C".
14
135
865
Remember when I quit my well-paying job in January because it was "time for me to do something new"?. I suppose pandemic lockdown childcare is "something new" but this isn't quite what I had in mind; I should've been more specific.
14
21
870
When I went to Google in 2007 to learn how the grownups did distributed systems, I searched internal docs for things I'd made and found that YouTube was using Perlbal (LiveJournal's HTTP load balancer) for some stuff at the time. Honored 😜.
30
38
865
Whoa, run Apple II Print Shop in the browser, with a virtual printer that generates a PDF:. OMG so many memories! 😍
28
205
803
How will AWS and GCP respond to this new offering? 🤔☕️☁️
28
164
770
Tailscale-for-wasm shipped!. Now you can SSH in your browser to @Tailscale nodes. It runs all of Tailscale+WireGuard+gVisor netstack+SSH client in your browser locally. #WebAssembly.
To make a web SSH client from scratch, you must first create the network stack. It was a lot of fun turning @bradfitz’s @tailscale Wasm prototype into Tailscale SSH Console. We wrote up a bunch of behind the scenes details at
24
127
708
Is there nothing left to do in tech if everybody's working on Dark Mode?.
26
98
683
Turns out Google's internal business card order form only allows a few email address domain names in its <select> drop-down. But that's easy enough to fix by editing the DOM with Chrome DevTools. My parting gift arrived. (I couldn't change the Google to a gopher, though.)
9
28
691
Somebody just found some old pictures of my 21st birthday party and noted that I stepped away from the party to deal with a LiveJournal thing in the middle. Look at that retro battlestation! And a fax machine?!
42
9
650
Twice today I've spoken up in meetings and was totally ignored. I guess my idea wasn't even worth a reply? :-/. Five minutes later: oh, right, I forgot I'd muted myself.
10
30
581
coworker pointed out he's closer in age to my 4 year old than me 🪦.
15
2
547
115 KiB of our binary is #golang compiler-generated equality funcs for structs used as value types. Make it all go away with this one dirty trick:. Make your struct types not comparable by adding an unnamed 0-sized array of func pointers. Now it can't ==:. _ [0]func(). 🤮 🤷♂️
19
93
560
more IPv4 plotting. Yellow = AWS.Orange = GCP.Purple = Azure.Brown = DoD / US Govt.Gray = Reserved (e.g. 127.0.0.0/8 in the middle).Blue = you guess
66
82
545
10 years of my technical writing being critiqued by the Go team and I can still hear Rob et al telling me: "Drop Useful. Useful is subjective. And if it's not useful why would it be here anyway?". java.util.Locale: .
21
29
535
My regular bartender gave me a haircut in 2013 and I paid in $BTC. Good haircut. (She still has it, now $12,500 or whatever.)
15
116
550
Dear onesie manufacturers,. Please use alternating colored snaps to prevent off-by-one errors during baby wiggling. All silver doesn't help anybody. Love,.Parents
33
82
504
Well, it only took 7 months for Google recruiters to start contacting me. (Then again, they also contact you while you're still employed at the company, so I shouldn't be too surprised.).
20
12
493
useless idea that maybe already exists:. add song metadata in source code comments so each file can have a theme song that starts playing when you open it (e.g. integrate with vscode-spotify or whatever).
40
35
481
We made a thing: Таilscale SSH. We put an SSH server in the @Tailscale tailscaled process that integrates w/ Tailscale auth (authN+authZ) so you don't need SSH keys. And works alongside any existing SSH server on your machine. Props to @maisem_ali for doing the hard parts! 😅.
🚀 Say hello to Tailscale SSH — and say goodbye to managing SSH keys, setting up bastion jump boxes, and unnecessarily exposing your private production devices to the open internet.
15
68
484
Go 1.14 should be great. Much #golang runtime work this cycle. Hope all lands:. * async preemption (.* fast defers (.* scalable timers ( .* new page allocator (.
#golang defer statements got faster in Go 1.13 and got much faster just now, for Go 1.14:. "cmd/compile, cmd/link, runtime: make defers low-cost through inline code and extra funcdata".
7
134
481
Pass-through RJ45 connectors still feel like cheating
41
21
457
Today's my two years at @Tailscale anniversary! 🔐🎉. After about 3,000 commits I'm getting closer to understanding networking. (admittedly a BS metric; nobody will truly understand networking).
7
5
464
Google's all, "Oh, you're logged into Google so we know who you are and your country and every personal detail of your life and looking at a map of Hawaii, so we'll show you miles not km, but OH MY GOD YOU HAVE A GERMAN IP ADDRESS SO WE'LL USE A COMMA FOR THE DECIMAL POINT!".thx
13
64
463
Unix: The Rule Of Silence ( . "when a program has nothing surprising, interesting or useful to say, it should say nothing.". Windows:. " OK!"
17
60
451
Dear internet,.Have I ever shown you my LGTM foot pedal?
16
194
442
I'm preparing to do an interview. This applicant has an impressive tenure at their previous job. "Jan 1970 - present · 52 years".
28
13
448
So,.* FB pays teens to track them with app (market research). ~Fine.* Apple doesn't approve said iOS app.* FB says F that, distributes sideloaded corp app.* Apple says F that, blacklists Facebook's corp cert.* FB employees can't check lunch menu etc. Cool.
15
165
424
I wrote a doc:. CRFS: Container Registry Filesystem. "CRFS is a read-only FUSE filesystem that lets you mount a container image, served directly from a container registry (such as , without pulling it all locally first.". Code later.
13
98
447
We just made the first bits of the @Tailscale code public, starting w/ the Linux client + its dependent/common code:. Still lots of rough edges & TODOs everywhere so temper expectations accordingly. We want to hack in open and not wait until it's perfect.
15
68
443
My Unix/Linux knowledge is pretty decent in parts & not so in others. Stuff around process groups, sessions/session leaders, controlling terminals, ptys, termcaps, login shells, uid/euid/suid, capabilities. very fuzzy. There a canonical guide/book to all this? Time to learn.
38
29
412
The 3-year-old talking about his little brother who smashed his tower:. "He's just a little boy. He doesn't know what to do. But I'm a big boy and I also don't know what to do.". Deep.
7
27
408
serverless-to-cgi-bin -- A browser extension that replaces occurrences of 'serverless' with 'cgi-bin'.
4
124
379
"hey @nickoneill, what's your wifi?"."We don't have wifi."."What? You don't have wifi?!"."No, we don't have wifi". "Goddamnit, Nick."
7
27
387
So @Tailscale is now officially free for open source projects & friends/family use cases when using GitHub orgs:. We launched GitHub auth support without clarifying that. Consider it clarified. :).
10
76
383
When I left Google apparently all my old App Engine and GCP projects were auto-transferred to my team or something, including my very first one when I wanted to run Hello World but it nagged me for a "project ID" (whatever that was!) and I entered:. "your-mom". So Go got that. 😂.
6
15
381
This hose has 6 useful spray patterns and one utterly stupid or broken one. #verticalvideo
26
60
374
Good on @AWSOpen for forking ElasticSearch. Sorry Elasticsearch, but if you open source something and then up-open source it, don't be surprised if people carry on using & contributing to the old open source version. Play stupid games, win stupid prizes, etc.
14
49
371
Thanks to @FiloSottile for sending out to remove hurtful terminology in the #golang tree. Better late than never. (Preemptive: yes, whitelist/blacklist terms aren't racist by etymology. That's not the point. Rather, not perpetuating white=good/black=bad).
17
58
369
Lolz at internet comments saying that Google couldn't have possibly paid "millions" on Go because #golang is so simple. Probably a troll, but my napkin math w/ git log + ~glassdoor salaries puts Google-paid accumulated salaries alone at least $45 million since 2009.
17
55
357
A good stopping point for going to bed is when you think you know the solution to a problem or at least a good next debugging step. DON'T ACTUALLY TRY IT, though! If you fail, you'll be up longer: either fighting it more, or thinking about it in bed. 💤.
18
71
364
Whoa:. "Run VS Code on a remote server". I haven't been able to fight Emacs+screen+mosh addiction for ~20 years now (well, mosh was recent addition) because I loved being able to move between machines & have my state preserved. I've been waiting for this!.
18
56
369
"logrotate.service: Failed to run 'start' task: No space left on device". You had one job.
6
20
338
The IRS has a new authentication provider: So to pay taxes to the US government I need to use an identity provider with a Montenegro domain. 🙄🤷♂️.
23
44
353
If any of y'all would like to experience something, uh, special, then express support for Hong Kong and watch your email and DMs blow up with Chinese bots and nationalists. Wow. Good times.
I can't keep up with the news lately (and most of it's depressing), but the #HongKong protests seem like the most optimistic thing that's happening in the world lately. We're cheering for you, Hong Kong! 🇭🇰 (well, most of us, except stupid corps and bots).
64
118
345
Week 1 (0.5?) at @Tailscale:. * set up internal Tailscale godoc server (running on Tailscale itself!); memories of Google internal godoc on Borg. * set up many accounts, 2FA, computers (Windows + Linux) . tedious, but necessary. * started prepping for open sourcing stuff 🎉🎉.
7
7
340
