jof

9 ms·

1.
by jof 11mo ago
SSL was developed by Netscape in the 90s and evolved into TLS. Netscape Navigator essentially evolved into Mozilla. "They've" been at it from the beginning, so it somehow seems understandable that Mozilla has a lot of "S
2.
by jof 2y ago
It seems to me like the underlying issue was ignoring HTTP semantics and making a state-changing link like a logout link a plain <a> (HTTP GET) and not something like a form submission (HTTP POST). Having intuition for the foundationa
3.
by jof 3y ago
Make an LED blink. Then, connect an RGB LED and experiment with PWM signal generation. Then, experiment with network programming, accepting a UDP packet to the ESP32 that sets the color of the RGB LED.
4.
by jof 4y ago
Could it also be, with the advent of Satellite SOS, that Apple is starting to explore non-conventional mobile RF protocols, and that Qualcomm's product offerings are only really geared towards generic, standards-based mobile networks.
5.
by jof 9y ago
The GPS P(Y) and Military codes exist to (hopefully) prevent spoofing.
6.
by jof 12y ago
This probably leads to a great user experience. However, if this catches on, SMS sniffing over the air is going to really pick up! :p SMS messages are often carried over GSM control channels, generally unencrypted over the air. Even when th
7.
by jof 12y ago
Recall that Visa and Chase are major investors. It's rather difficult to "eat their lunch" with them on your board.
8.
by jof 13y ago
As one of the volunteers operating the existing Market St. WiFi and the housing project WiFi, I can say that this is definitely being discussed and evaluated, but I don't have a lot of hope for the Department of Technology making anyth
9.
by jof 13y ago
Well, let's just say it's an architecture Square knows well. :)
10.
by jof 13y ago
Jekyll? There's not much more than a repo and text files on the admin side, but enables super-fast blogging on light hardware.
11.
by jof 13y ago
This is _exactly_ what Aircell does in the US. I'm not sure what spectra they're using, but the bandwidth would likely be quite variable, as planes with non-directional antennas will interact with one another over wide areas. Weather could
12.
Stripe Enables Cloud Payments with StackMob(blog.stackmob.com)
11 points by jof 14y ago|0 comments
13.
by jof 14y ago
I haven't run across or know of any tutorials on this exact problem, but I think you're right that you'll end up doing a lot of the synchronization yourself. You might check out PubNub and other messaging services. PubNub is a stackmob part
14.
by jof 14y ago
Seems decently useful. Pretty cool that they can do asynchronous jobs in node, php, go, java, .net, python, and ruby
15.
by jof 14y ago
BOOTP and DHCP use the same ports and general packet structure, so Wireshark has the dissectors grouped. I was humored by that Wireshark screenshot. ARPs and DHCP/BOOTP requests from a freshly-booted device are not al that unusual.
16.
by jof 14y ago
This is the dopest WebGL application, IMO. Totally loving this, including the green mode.
17.
by jof 14y ago
In my favorite static analysis toolset (Radare, http://radare.org/ ), there's a nice feature similar to this. It "zooms" out on a big file by summarizing portions of it into chunks and displaying colored ascii characters in a chart to repr
18.
by jof 15y ago
This article raises a good point, and AFAIK there's noone doing something like this on a large commercial scale. There are systems for mapping telephone numbers into DNS, like ENUM ( http://en.wikipedia.org/wiki/ENUM ), and e164.arpa. in DN
19.
by jof 15y ago
There are a couple of factual errors in this piece that I feel obligated to point out: 1. The root DNS server pool only hosts glue pointing TLDs to other pools of servers that administrate those TLDs. No amount of pressure on ICANN or the
20.
by jof 15y ago
There are a couple of factual errors in this piece that I feel obligated to point out: 1. The root DNS server pool only hosts glue pointing TLDs to other pools of servers that administrate those TLDs. No amount of pressure on ICANN or the
21.
by jof 15y ago
Isn't this what C99's uintptr_t type tries to address?
22.
by jof 15y ago
I think startup politics generally reflects the power structure surrounding it; whether that be founders or investors that hold a relatively big stake in an organization, or the society surrounding it. The US is not always the most meritocr
23.
by jof 15y ago
No number is made explicit -- they can't really be demanding more than 40 hours / week for exempt employees in California. You're expected to "find your own work/life balance", but there is strong social pressure to stay in the office night
24.
by jof 15y ago
I'm pretty familiar with Jack's situation. Yes, this is indeed true, now. For a time he was splitting one day on / one day off at each company. Frankly, Jack has very little time outside of his work, but I wouldn't say that he doesn't have
25.
by jof 15y ago
Just a point of interest -- most of the SF BART stations are not "repeaters" per se (except perhaps in the context of a network or higher layer protocol), but are actually full blown computerized radio systems themselves. I suspect most are
26.
by jof 15y ago
I just can't stand this mentality. Avoiding doing something just because there might be a mere possibility of being sued for it is a total copout. If you have pretty a good reason to believe something bad will happen, one ought to do thei
27.
by jof 15y ago
This site just keeps linking datasheet links to ads for me. I use Octopart. They're an awesome startup and have a great collection of datasheets already.