ay

13 ms·

91.
by ay 2y ago
It is not possible to distinguish between the absence of negative ACK and the loss of it.
92.
by ay 2y ago
There is a scenario called “simultaneous open”, which has 4 packets handshake and is a wonderful source of corner cases and debugging. Mostly doesn’t happen these days, but is possible by standard and is explicitly described.
93.
by ay 2y ago
Reminds me of https://ruby-talk.ruby-lang.narkive.com/buiXXTZh/what-is-hoo... :-)
94.
by ay 2y ago
I have a very mild intermittent tinnitus and I found this link (which I found on HN at some point), which definitely gave an instant (albeit temporary) relief: https://generalfuzz.net/acrn/index.html I also had some ot
95.
by ay 2y ago
(Deleted my initial messages since I didn’t realize retelling Claude is not okay :-) Thus I will just summarize my initial hunch based on watching the video which wasn’t refuted by the upload of paper and asking about it: proximity of the s
96.
by ay 2y ago
. ~___@ /\ /\ It is a head of a dog with the open mouth. With a bit of imagination still looks quite like that even on the iPhone :-) (edit: not sure how to convince HN to do the equivalent of <pre> - the picture is
97.
by ay 2y ago
No it is not a referral link. I have searched for the book and then removed anything that looked like it would keep state/extra info. In retrospect, indeed posting a title would have been a simpler option :) thanks!
98.
by ay 2y ago
So much this. There is a great book which I think should be on a table of every single person (especially leadership) working in any place which involves humans interacting with machines: https://www.amazon.com/Field-Guide-U
99.
by ay 2y ago
Very interesting, and looks extremely flexible. I had needed a small interpretive environment that would be highly controlled, used in a proprietary configuration templating solution for parametrizing various values. I wrote https:/&#
100.
by ay 2y ago
FWIW, I have been working on a variation that is supposed to be eventually on a similar topic, but it is confined to a specific terminal - https://github.com/ayourtch/prompter For the time being it doesn’t do much othe
101.
by ay 2y ago
Ethernet was designed like this :-) https://en.m.wikipedia.org/wiki/IEEE_802.2 Back in the olden times, the Windows 3.11 and Windows 95 could even run services atop it using another protocol: https://en.m.
102.
by ay 2y ago
This feels to me very similar to my experience - I tend to joke that in order to express a thought to others I have to translate it into words first; and in doing so I also flatten the thought. And before it, the time of having a raw though
103.
by ay 2y ago
Looks cute on the surface, but if the program ever has to dump a core, it will eat up a fair bit of space, so RCA will be a massive pain. I made a small experiment with 1-million int array, which has a single element written to at index 100
104.
by ay 2y ago
Lucky you! :-) The one additional bonus of this scheme that popped up somewhat as a side effect is one can deploy the new feature into the “prod” build even before it hits the master: code it up, add the instruction to cherry-pick the chang
105.
by ay 2y ago
Sometimes it’s still hard to tackle people psychology who are used to “comfort” of the “sta[b]le” branches. So at work I came up with the following observation: if you are a consumer and are afraid of unpredictable events at head of master&
106.
by ay 2y ago
Yeah, since the now the data is essentially random, probably the problem won’t even be possible to happen …
107.
by ay 2y ago
In a similar story, in my TAC support days (I supported the PIX firewall) I got an odd case: an FTP transfer of a particular file always stopped for a customer. At the same place. No other files were affected. I knew that there was nothing
108.
by ay 2y ago
What if we all are computer programs after all, to begin with ? :-)
109.
by ay 2y ago
Thank you! The second link was the missing one for me ;-) I did a breath work session once out of curiosity, but it was so much voodoo talk and so much obvious exploitative power dynamics from the “guru” after the session, I could barely ho
110.
by ay 2y ago
Any pointers to read more ? My GP friends only pointed me to respiratory alcalosis, which doesn’t appear to be about O2 levels at all - it’s the pH being out of the narrow “acceptable” band (too low in the case of hyperventilation) appeare
111.
by ay 3y ago
I don’t know if both authors being affiliated with HP Labs is a coincidence or a sign of a conflict of interest… But the article kinda reads like a desperate last-ditch promo for the inkjets. I haven’t had an inkjet for 30 years - only blac
112.
by ay 3y ago
The firsr question that popped up in my mind reading the paper - “does this mean anything in the context of AAKG food supplements ?” My impression from 15 minutes of googling (being completely clueless in this domain) seems that since AAKG
113.
by ay 3y ago
Very cool read! For the malicious links, did you have a chance to track whether the malware actors verify that their links do not work, e.g. by setting a cookie when they make a link and checking it later ? I wonder if making these maliciou
114.
by ay 3y ago
“Most” is a highly load bearing item here. You can’t go back and rewrite the scripts that don’t work so they do.
115.
by ay 3y ago
Perl (without dependencies) works awesomely well as a replacement for bash in scripts, in my experience. Unlike Python, chances that it will break the next month (or the next decade) are virtually nil.
116.
by ay 3y ago
It was fun to see a lot of flak towards fragments, when really just about everything you access today is delivered in fragments called TCP segments. Sure, the delivery mechanisms are quite a bit different - but not that much if we were to
117.
by ay 3y ago
I use Firefox since the time it was Netscape Navigator 2.0. Unfortunately that’s not the case for almost 70% of the others. Thus de-facto there is no browser diversity. The only saving grace for me as a user is majority of the things possib
118.
by ay 3y ago
Two isolated computers won’t get you very far in today’s network. They might get the auto configured 169.254/16 addresses and link-local IPv6, and get some Bonjour traffic but that is about it. But those protocols are not in TCP/
119.
by ay 3y ago
In this particular case a fair bit of noise was made when it was introduced; namely - the UI hiding the URI scheme. It started in Chrome. https://superuser.com/questions/1356867/chrome-69-hiding-www... All the noi
120.
by ay 3y ago
One can do even simpler: install a Linux host and run tcpdump / wireshark to capture its own traffic on an interface. If you time the start of capturing with the moment you connect, you can see the DHCP, and probably DAD and DHCPv6 and

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