cnvogel

19 ms·

121.
by cnvogel 10y ago
The network could blindly accept any phone, and distinguish by IMEI (phone identification) instead of IMSI (subscriber identification), I think. But as the former doesn't have any cryptographical authentication, it's trivially eas
122.
by cnvogel 10y ago
> use /dev/urandom and nothing else Or the getrandom() syscall, once it has trickled into all mainstream distributions' libcs. Which is basically /dev/random, but without the need to open() and close() the device
123.
by cnvogel 11y ago
Thanks, your help in visualizing woodwork is really appreciated ;-).
124.
by cnvogel 11y ago
I guess most people, when they hear the word Router, they think of their DSL-box. And those commonly have a WiFi access-point built in. (commonly also called CPE (customer premises equipment) by the telephone companies). $ ip route
125.
by cnvogel 11y ago
During the "Linux-Setup" part of the article: """ ...and whether you want automatic security upgrades. (Spoiler: Yes, you do.) """
126.
USB 3.1 now has digital signatures: may force you to use vendor chargers only(usb.org)
63 points by cnvogel 11y ago|65 comments
127.
by cnvogel 11y ago
> Not enough isolation between the line side and the > output side. Classic cause of electrocution and fires. I'd doubt that any significant amount of fires are caused by loss of isolation between line and output side. While it
128.
by cnvogel 11y ago
I really like this project for the aesthetics of the old switchboard. And the guy's blog has many pretty pictures. http://blog.lazerwalker.com/switchboard/2016/02/21/switchboa... What I find funny,
129.
by cnvogel 11y ago
Also my approach. I always (try to) bring some notepad and pencils. Most often it's not even notes for myself, but just writing down a few points I find remarkable, or on which I'm going to ask questions or make a remark at a late
130.
by cnvogel 11y ago
Yes, it's amazing to watch. But sometimes this doesn't work, then you have to purchase e.g. a supported IP connected femtocell.
131.
by cnvogel 11y ago
Yes, I had assumed such things in the past, too... ;-). But of course you are right in general: A smartphone, notebook or tablet manufactured will likely be built to stricter standards than a random cable from a random Amazon seller. Nevert
132.
by cnvogel 11y ago
Ok, this is all nice and true, but how would such a thing be handled in practice? There's a difference between "Standards Compliant" and "Does not work for me". Many of the standards compliant cables might work just
133.
by cnvogel 11y ago
Just pondered... there might be everything already be installed in a typical linux system, "split" does the right thing and can pipe into a command. Probably not the most efficient (making several copies of the data), but certainl
134.
by cnvogel 11y ago
https://github.com/jeelabs/esp-link replicates what's commonly known as a terminal server. The default firmware already emulates a modem. http://wiki.iteadstudio.com/ESP8266_Serial_WIFI_Module#AT_C
135.
by cnvogel 11y ago
For the pretty limited usecase of a "record only" dashcam, you might consider recording in chunks. Create an ephemeral key for a symmetric encryption in advance, encrypt this ephemeral key with the public-key method of your choice
136.
by cnvogel 11y ago
Most of the devices with more that one (especially >2) Ethernet port actually have only one network controller and a small VLAN-capable switch. That's the standard configuration of almost any plastic access point/"router&q
137.
by cnvogel 11y ago
> the American people will once again be > given only two choices for president They might on "final election night", but the same people who will have (most likely) to choose between the lesser of two evils, h
138.
by cnvogel 11y ago
The RTL SDR can (unmodified) only receive down to a few ten MHz. At least for some of their research they used a soundcard. As far as I know you will access different types of information. kHz range is mostly power consumption. Tens/hu
139.
by cnvogel 11y ago
To me it looks like the coil of an wireless charger, or of an RFID reader.
140.
by cnvogel 11y ago
And the "--" option to most utilties that make everything follow the "--" parse NOT as an option. e.g. "rm -- -r -f blubb" will delete the three files "-r", "-f" and "blubb".
141.
by cnvogel 11y ago
Specifically https://msdn.microsoft.com/en-us/library/windows/desktop/bb7... https://code.msdn.microsoft.com/windowsapps/CppShellKnownFol... hr = SHGetKnownFolderPath(FOLDERID_Progr
142.
by cnvogel 11y ago
I guess the number of "enthusiasts" running Memtest on their (or their acquaintances') PCs still is miniscule. So in my opinion no one would notice, except if a return questionnaire explicitly included a [√] error while
143.
by cnvogel 11y ago
The ratio of the observable universe's circumference to a proton diameter may be 10^-35, but that doesn't really say anything for the precision of Pi you'd need in practice for any calculation involving these scales. Because
144.
by cnvogel 11y ago
I seriously was amazed about the result, with a "block" of water being able to withstand tension. Also the working principle of a siphon, I think, never was about atmospheric pressure. It's only the maximum height limit where
145.
by cnvogel 11y ago
This revolting plan sounds almost like "Dr. Strangelove"... https://www.google.de/search?q=world+targets+in+megadeaths&t... (read the title on the spine of the book)
146.
by cnvogel 11y ago
Quote from the conclusion: """Extrapolating these results from even the most conservative experimental measurements of the tension under which cavitation occurs it is possible that the cohesive strength of fully degassed wate
147.
by cnvogel 11y ago
I don't see any shame and blame yet. The only thing these emails show is the claim by BMW that no software not developed or fully owned by BMW is running on their cars infotainment system. A shame and blame game would start when one an
148.
by cnvogel 11y ago
Interesting. Could be that they are mandatory when you have ports sourcing higher currents? That would be reasonable, to avoid damage on shorts. -- But I've never seen such things on "simple" (500mA) ports, only polyfuses. I&
149.
by cnvogel 11y ago
> Controlling USB-C ports is so complicated that Cypress's IC has a 32-bit ARM processor ...it's a Cortex-M0, 4k RAM, 32k Flash. By today's standards, this is a very small controller. For the Arduino-Crowd, it's rough
150.
by cnvogel 11y ago
> "Your device tried to draw too much current and so the USB port has been disabled." In USB 1 and 2 (probably also in 3, but I don't know about this), the device has two power modes. Initially it is only allowed to draw a

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