Edit: He answers the question in his FAQ
> The borosilicate glass laughs at laser beams
..which makes sense. Seems like sand blasting would be the best way.
Thanks for answering, and congratulations on your book's anniversary.
My job gives out copies of your book as a somewhat prestigious award to those who find and report security problems, and I'm very happy to have both received and read a copy.
I still don't think it would work well for your purposes - borosilicate just doesn't mark well, and you'd need to start with an accurate 3D model of the object - but I hope you enjoy the video!
(And thanks for writing the book!)
How thick is the rubber you use for sandblasting? Could it be laser cut to reduce the pain of making the mask? It sounds like you've exhausted all workable options but my curiosity is piqued.
Also, why not use glass that's easier to etch?
E.g. "As a case example, one worker (case 1) splashed his left leg while transferring a cleaning solution of HF and sulfuric acid between containers. He did not irrigate the area and continued to work for approximately 1.5 hours with soaked pants and shoe until he developed an uncomfortable burning sensation" ...
To reliably etch glass, you need concentrations of 10% or preferably more, at which point you really want a PVC apron, a face shield and a heavy-duty fume hood to work with it, to avoid the sort of exposure in .
I'm going with "things I won't work with", Alex.
Seriously, don’t mess around with this shit - even IF you notice exposure (hard, because you may not even notice until it’s too late) there’s a good chance it’s already a done deal.
I'm not an expert in either chemistry or medicine but what I gathered was:
The medical team needs to try and offset what the fluor is doing to the balance of ions in your body, to keep your cells alive. HF will diffuse within pretty much all of your tissues (including diffusing into bone like it was a sponge iirc) and a medical team will check your blood ion levels every five minutes or so while sticking you with CaCl (iirc) injections along the path the HF may diffuse through your body (if you're lucky enough to have hit an extremety like a hand). While the HF is diffusing, you will not feel anything. They cannot just pump you full of the proper ions to counteract the effects of the fluor and maybe bind it because that would kill you as well, they have to hit the right elevated concentration locally to offset what the fluor is doing.
Edit: I've read up on it again and some of the things I wrote aren't right and I misremembered, like HF exposure being painless. At first it may be so but once the calcium levels drop, exposure is connected to extreme, "deep" pain. Treatment guides stress to not admister aneasthetics because the pain is the best indicator for successful treatment.
Also, Calcium Gluconate is recommended, not Calcium Chloride.
This  is a detailed source I found (PDF).
 (PDF) https://ehs.unc.edu/files/2015/09/hfaexposure.pdf
They're used at a local University for disposing of cattle remains from the veterinary school... takes several hours, but then the waste liquid is diluted and sent down the drain.
> the only times I even use the solution forms of the reagent are on a very small scale and in weakened form
The only tricky part of working with it is getting clean edges with a stencil.
To laser etch borosilicate you'd have to use an expensive laser, either an abnormally high powered IR laser or something higher frequency like a UV laser. It wouldn't be enough to just melt or heat stress bits off the surface, you'd have to micro structure (microscopic 3d carve) it to form something that would reflect light well, otherwise you wouldn't be able to see the etched pattern except in certain light.
On top of that the depth of field issues for a laser apply as well as the incident angle for the beam - you'd want something close to a surface normal angle to get a consistent, controllable result, so you'd have to use a 5 axis machining setup to make sure that happens. A 5 axis precision UV laser would probably cost more to run than the bottles are worth, despite their quality.
What I'd probably do if I had to label bottles like these with names is make a small soda glass plaque or tag with a mold and possibly some color tint for contrast, then etch it using an appropriate method (or maybe even mold the name in) and affix it to the bottle either by heating and slumping it into place or molding it to a matching curve and then using optical adhesive to affix it.
Or, just make a nice display box for it and put the name on a brass plaque on the front :)
May have a nicer result than a label maker, depending on taste.
Flips work table, opens secret door and...
It’s in my top five for most exciting page turner.
(for clarification, yes, that's me commenting on that site back in 2013)
This is the other ingredient to Stoll’s hacker-hunting obsession [...] a kind of low-burning moral outrage.
For an other example, here's what Neil Gaiman says about Terry Pratchett:
There is a fury to Terry Pratchett’s writing: it’s the fury that was the engine that powered Discworld
You lost me right there. At some point enough tinder on the lowest burn turns into fire. The end of the interview suggests much the same on the part of the subject.
I opened our email on Monday to see Cliff’s name and a truncated subject line. I then spent the next 20 minutes trying to figure out if a) I was looking at the wrong email account. B) wondering if it was some sort of phishing attempt c) had Cliff started or was working for a security company and he was trying to drum up business.
I finally clicked on the email and was surprised to find pictures of Cliff, a Kleinmug, a box with drawings on it, and his wife’s garden, the flowers were lovely.
I finally went back and read the text of the email to find out that my wife had ordered a Kleinmug.
Frankly it was the most excitement that I’ve had in a long time, getting an email from Cliff Stoll, very cool. I then needed to explain to my family what happened to me, and explain who Cliff was, and why it was important. I was an network admin during the Morris worm attack, and was on some email chains, and on some network news threads with Cliff, after the fact.
The box arrived, but we haven’t opened it yet to check and see if it’s OK, we are waiting for our son to go out. My wife and our daughters are really excited to see the Kleinmug now that they know the backstory, also I think the girls might want a Kleinbottle as well.
Reading The Cuckoo's Egg gave me a frisson of recognition, as I was similarly torn between the abstract world of physics and the (comparatively) more concrete world of computing, as well as running into people mucking about where they had no business being during a time period when law enforcement had yet to develop a solid framework for responding to those sorts of issues.
I have considered contacting him purely for some hourglass work, or at least tips as to what to look for.
Made reading the 409 dump when trouble shooting a bit tricky
There are many hucksters out to make money from overstretched school budgets by pandering to parents’ tech anxiety, and no money in sage warnings, and in our marketing-driven attention economy, that means the latter is ignored to the detriment of the common interest.
That unselfconsious joy about stuff is exceptionally wholesome.
The other trap is to figure that even if you're really into something you somehow have to be "serious" about it in a way that means you can't admit that you're having any fun -- or that you have to work on "serious problems".
You avoided the traps! You are an inspiration, as a direct result. The very best people I know all have this trait -- a very early mentor in my life, my graduate advisors...
So, thanks. :)
To an introvert like myself, it's cool. I love seeing how far I can get (with my 40m Z-dipole mounted in my single story attic -- i.e. too low, and hiding inside a building -- I've gone 5150 miles on 10 watts).
But it doesn't offer the challenges (and rewards) as CW, or even SSB phone.
I wasn't brought up with a TV, and don't own one now. I haven't done cool things with klein bottles, but i know a bunch about how bicycles work!
https://www.sheldonbrown.com/sturmey-archer/aw.html has teardown photos, to boot.
Not exactly an entertaining day on television.
From the abstract: "On 7 January 1991 a cracker, believing he had discovered the famous sendmail DEBUG hole in our Internet gatewaymachine, attempted to obtain a copy of our passwordfile. I sent him one. For several months we led this cracker on a merry chase in order to trace his location and learn his techniques."
What impressed me most about Cliff though was the level of interest he displayed in everything. In what our company did when talking to the execs before the talk and in everyone who came up to him after the talk. He stayed in the conference room to take photos with each of the dozens of fans lined up one by one. Eventually we were kicked out since the next event was about to start.
15-year-old me would never have dreamed of meeting my childhood idol, but when I finally met him it was like he just had finished writing the book and walked onto the stage. Thanks Cliff!
LBNL should have given him a lab, a quarter million bucks for equipment he might find interesting and permanent access to the machine shops and library. The fact that they didn't is ... one of the reasons I no longer work there and why modern science and its culture is a trash fire.
Cuckoo's Egg is a great thriller. Silicon Snake Oil was ahead of its time. The thing I liked about both is that they showed me what a rich life could be like beyond computers. And what was this magical place called Berkeley?
Cuckoo's Egg is also something of an anecdote to 'imposter syndrome'. It showed how someone who was coming in to the field from the outside could trust their instincts and do something important. As others have said, a lot of us have come into this field from a wide variety of backgrounds. Stoll's books showed me how that can actually be an asset.
It's not an aesetic desire you're only tired of junk food for your brain. You're tired of being spoon fed predigested pablum. You're not happy with circular stories with characters that never change.
You're interested in yourself and being better. You're interested in your friends and loved ones and their journeys and lessons.
- Very knowledgeable across a range of studies
- Likes to build homebrew projects
- Impressive work ethic and devotion to projects
- Does it not for money or fame, but just because it's what they do
> “I remember when the internet was innocent, when it crossed political boundaries without a care, when it was a sandbox for intellectually happy people,” Stoll had told me in our first phone call. “Boy, did that bubble burst.”
> He never imagined, 30 years ago, that the internet would become a medium for dark forces: disinformation, espionage, and war. “I look for the best in people. I want to live in a world where computing and technology are used for the good of humanity,” Stoll says. “And it breaks my heart.”
Idealism and 'the greater good' are locked in a perpetual battle with human factors, and human factors always seem to win. :(
I find it quite relevant to your quoted passages and, I suppose, corroborative of your commentary.
Bit of a long read.
And I have no idea what we discussed...
30 years ago the US phone network was losing about $6 billion / year to toll fraud, operator fraud, and cellphone fraud. Captain Crunch had been arrested in '72. https://en.wikipedia.org/wiki/John_Draper
So what are these people doing to make their stuff so elusive?
But seriously, I have no problem with over 90% of the sites I visit using this Firefox instance. But then there's wired.com and imgur.com, for example, which display just blank pages.
I have no clue what it is. I've made too many changes.
But I'm reasonably confident that it's something evil that they're doing, rather than something silly that I've done.
I'm fairly sure it comes down to the automatic tracking protection Firefox touts, but I can't seem to find how to turn it off for one specific site. Or better yet the specific requests that cause breakage on the specific site.
However, the images are missing
The kleinbottle website is better
$ w3m -dump https://www.wired.com/story/meet-the-mad-scientist-who-wrote-the-book-on-how-to-hunt-hackers/ | less
I wonder what I've done to Firefox. Maybe I'll take some time to figure that out.
Pretty crazy duo. I liked it.
Don't tell his wife!
I think she is now his ex-wife.
I have one of his books about polytopes and find it hard to wrap my head around the details, despite a childhood interest in higher dimensions. The diagrams are terrific!
Seriously, the article is talking about German hackers intruding military targets:
"the hacker’s intrusions to the Department of Defense’s MILNET systems, an Alabama army base, the White Sands Missile Range, Navy shipyards, Air Force bases, NASA’s Jet Propulsion Laboratory, defense contractors, and the CIA"
"Stoll’s hacker-tracking work at Lawrence Berkeley National Labs inspired its sister institution, Lawrence Livermore National Labs"
This is where nukes are designed.
And after that "Don’t go screwing with information that belongs to innocent people!", "You have a responsibility to your colleagues like me to behave ethically", "low-burning outrage", "[the Internet] was a sandbox for intellectually happy people".
Innocent, ethical, intellectually happy people creating means to murder hundreds of million people and pesky hackers who have no right to be snooping around.
...working on behalf of the KGB, seeking military advantage for the totalitarian police state they served. Yes, let's be on their side instead.
I remember joking that you had better hope that you got caught in order by: the local police; The Met; The service (MI5); internal security rather than me :-)