kijiki

14 ms·

91.
by kijiki 5y ago
Unless your bots are doing things that get their messages reported by recipients, this shouldn't affect you at all.
92.
by kijiki 5y ago
No one can give you a 100% answer, but I can relay some personal anecdotes which might help. I have consulted for the Signal Foundation in the past. None of the employees or consultants I worked with indicated that they'd had any probl
93.
by kijiki 5y ago
Caches aren't a problem, you can just persist memory. The problem is the non-RAM internal state of everything. You can preserve CPU register state and various operating modes, but persisting the state of every hardware device you use i
94.
by kijiki 5y ago
Your switches run a routing protocol (almost always BPG) and your load balancers all announce the same IP to them. This results in a routing table with many next hops for the LB IP, and traffic is distributed across them using ECMP, typical
95.
by kijiki 5y ago
I haven't tried it lately, but last time I tried it around a year ago, if you try to use the web client and the moderator hasn't shown up yet, you have to solve a Google ReCaptcha every couple of minutes while you're waiting,
96.
by kijiki 5y ago
I haven't been to snow ranch in years, but early Spacex investor Steve Jurvetson was a regular at the high power amateur rocket launches there. Probably other Spacex folks there as well. Launches have all been shutdown for COVID reason
97.
by kijiki 5y ago
Plexxi tried something along those lines. It was cool, but very expensive, so it didn't really go anywhere.
98.
by kijiki 5y ago
A legit concern. Basically everything that connects directly to the cache controllers has to get CCA right. Coherent GPUs are the big, complicated one. Intel had an SGX bug where the GPU could access the last 16 bytes of every 64 byte cache
99.
by kijiki 5y ago
Intel and AMD do it in the memory controller. The caches, by virtue of being entirely on-die, are assumed to be inaccessible. It is unclear what AMD intends to do here for their TSV stacked mega-cache thing. Perhaps they'll declare the
100.
by kijiki 5y ago
Big Internet BGP servers also aren't super exposed due to the common use of TCP MD5 (RFC 2385) or TCP AO (RFC 5925). The userspace daemon won't even see packets from attackers who don't have the shared secret for that peer li
101.
by kijiki 5y ago
Sonic sells gigabit for $40/month if you're lucky enough to live somewhere they're allowed to get pole access.
102.
by kijiki 5y ago
amd64 is more RISC now than ia32 was in 2001 as well.
103.
by kijiki 5y ago
Tried it out on Debian Bullseye x86_64: $ objdump -w -j .text --no-show-raw-insn -d /usr/bin/emacs-gtk | egrep '^ *[0-9]+:' | awk '{print $2}' | sort | uniq | wc -l 130 $ objdump -w -j .text --no-
104.
by kijiki 6y ago
TLS is used, but there is another layer of encryption e2e from the client to inside the enclave. Your MITM server B can decrypt the TLS layer, but still can't see the actual traffic.
105.
by kijiki 6y ago
I used a burner gmail account to try it out. It was slow enough the idea of creating new burner gmail accounts every time I wanted to use it was uninteresting. IIRC, it was below 128kbit/s for me, though there was at least one mesh hop
106.
by kijiki 6y ago
I don't know anything about the SF program, but I lived in Mountain View at the time (still do). They put one of the mesh nodes on a street lamp about 200 feet away from my house. I played around with using it as a backup for when the
107.
by kijiki 6y ago
Everything old is new again. https://en.wikipedia.org/wiki/Channel_I/O
108.
by kijiki 6y ago
> Looks like Wind River discontinued RTLinux Xenomai is still under somewhat active development.
109.
by kijiki 6y ago
Inline images. Faster loading, and will still work when I look at the email years later when all the img links have rotted.
110.
by kijiki 6y ago
gmail presumably doesn't need to use a tracking pixel to determine if someone opened an email in the gmail interface...
111.
by kijiki 6y ago
These blocks tend to be reactive, so if a blocked app starts using Tor, Iran will block Tor fairly quickly. So in return for a short-lived regain of the use of Signal, all of Tor gets blocked. This proxy arrangement is better because folks
112.
by kijiki 6y ago
https://assets.moma.org/documents/moma_catalogue_2101_300062... Unsurprisingly it was funded by Intel.
113.
by kijiki 6y ago
> silicon valley is thousands of miles away from all of them. Intel does 10nm production at their fab complex in Chandler, AZ. About 600 miles away from Silicon Valley.
114.
by kijiki 6y ago
The govt did it back when it was Japanese DRAM manufactures that were outcompeting the US: https://en.wikipedia.org/wiki/SEMATECH
115.
by kijiki 6y ago
Really? I used a HT FPGA back then, but it came on an HTX card that fit into the HTX slot on the motherboard. Never heard of putting it into the socket, would be a real pain to attach JTAG to program/debug your design...
116.
by kijiki 6y ago
> It will be "historically significant" if Intel adds a feature to their chips in order to stay competitive with this development. TFA points out that this Apple AMX is similar to the existing Intel AMX, even (confusingly) usin
117.
by kijiki 6y ago
The secure constant time implementations in Ring are from OpenSSL, and written in assembly, because that sort of code cannot be written safely in C or Rust.
118.
by kijiki 6y ago
Cumulus used to use a pile of Chromebooks with USB SSDs attached for ARM builds. One day in the lab I noticed that 2 of them had popped their cases open due to the battery expanding. Asking around, we were not the only folks to find that ch
119.
by kijiki 6y ago
They're just mistaken, RTLinux is hard realtime. It works by running a tiny real time OS on the bare metal, and then running a Linux kernel as a (lightly) paravirtualized lowest priority task. You write your hard realtime code to run o
120.
by kijiki 6y ago
2/4 rounds (and the overwhelming majority of the $$$ raised) were years after the EMC acquisition, and immediately before the IPO. Not really what people think of when they talk about raising VC. The 5 million and 20 million rounds in

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