Placement of a web application on Amazon Web Services. Cheap. Is it possible?

 
Surely everyone has heard about Amazon Web Services (AWS). And some even looked at page Pricing . And noticed that the prices there are noticeably higher than on DigitalOcean, Linode, Hetzner Cloud, etc. Here's a table for comparing prices:
 
 
 
 
 
Type
 
RAM
 
CPUs
 
Disk
 
Traffic
 
Price
 
 
 
 
 
DigitalOcean
 
-
 
4 GB
 
2 vCPUs
 
80 GB
 
4 TB
 
$ 20
 
 
 
Linode
 
Linode 4GB
 
4 GB
 
2 vCPUs
 
80 GB
 
4 TB
 
$ 20
 
 
 
AWS
 
t2.medium
 
4 GB
 
2 vCPUs
 
-
 
-
 
$ 40
 
 
 
 
Amazon takes money for traffic, and the prices are also not low:
 
Placement of a web application on Amazon Web Services. Cheap. Is it possible?
 
So w...
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A couple of thoughts about the features of the Russian Data Science

A couple of thoughts about the features of the Russian Data Science  
 
Today at Moscow Data Science Major he talked about privacy, ethical Data Science, and many interesting technical innovations. People listened attentively, asked questions, thanked. But what happened next was very revealing. About this under the cut.
 
 
 
 
And then there was a report about the new Russian developments on NLP with this here's a slide.
 
 
 
 
The only amendment I made to it publishing here is the gray fields that closed the name, surname, quality and address of the living person. A person whose personal data and medical secret were so calmly and casually revealed to a thousand people who are not burdened by any nondisclosure agreements.
 
 
And the most terrible thing is not even that at the same time a whole series of federal laws were violated (No. 323 Article 13 and No. 152 at least). The worst thing, in my opinion, is that almost no one saw anything unexpected or bad in it
 
 
I really want to believe that I'm wrong, and the author changed the ...
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Effect of protection against Specter, Meltdown and Foreshadow on Linux performance ???

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Device for measuring CO2

Once, sitting at work and feeling uncomfortable in breathing, I decided to collect a CO2 meter.
 
Having studied several articles on this topic, formulated the requirements for the device.
 
 
 
The device should be with a screen, since it should be a portable device.
 
The device should not depend on the Internet for the same reason.
 
The device should be able to log values ​​in time, which are convenient to view at any time. And this means that it must have its own web server and its Wi-Fi point.
 
 
The last point ambiguously led to the introduction that the device will be on ESP. Since I do ...
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How I did the line-interactive UPS (Part 1)

How I did the line-interactive UPS (Part 1)Once the task arose to develop a line-interactive UPS. This is actually the simplest type of UPS with a "modified sine" output, but additionally it has the ability to adjust the output voltage when changing the input voltage. Something like the simplest voltage regulator. The idle function, but quite useful, allows not to switch to power from the inverter for short-term failures in the network. Later I will write about this in more detail, but for now here I would like to open a short cycle with this first article. All interested please under kat.
 
 

Introduction


 
Let's start with the structural ...[/h]
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Spy tricks: to remain in secret

About cryptosystems and machines was mentioned more than once in previous articles. But how to ensure the safe transfer of keys and codes, without which the work of secret services and spies would be equal to "0". There is an International Spy Museum, the exhibits of which are thousands of all sorts of spyware and accessories, often these are ordinary everyday items. Earlier, one of the resources published the top-10 of the most famous and unknown spy things of this museum. Among them (sorry, but not always items of use):
 
 
Spy tricks: to remain in secret ...
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Thirty-six degrees of beauty

Grid coordinate systems in which the plane is divided into the same symmetrical elements - into squares, triangles, hexagons, are sufficiently known. They correspond to square, triangular, hexagonal symmetry. But still there is a tenfold symmetry.
 
In it, the plane is not divided into decagonals, instead all the lines are located at angles of multiples of 36 °. Coordinates in this system can be written as integers, two integers per horizontal and vertical direction.
 
Thirty-six degrees of beauty
 
I'll tell you how to draw this.
 
 
 
The number of unit vectors in all directions in this frame is ten. If we take into account the ...
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Dracula Theme - a universal theme for almost

Dracula Theme - a universal theme for almost

 

Introduction


 
Hello everyone, some time ago I have to deal with a lot of different text editors and IDE, on different operating systems. Then I really began to get annoyed at such a moment that each of them has its own theme of code design, plus a few others to choose from. There were good and bad, but they were all different, which for me at that time was a problem and constantly had to get used to the new design.
draculatheme.com .
This site is a universal theme for different applications - Dracula Theme ( ? license MIT
).
 
 
On this site I found exactly what I need. There are ...[/h]
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Interest and usefulness of python

I've been programming python for several years, however, I recently realized that many useful tricks and interesting moments passed me by, maybe I'm not the only one, so I decided to list them here, I hope these techniques will be useful to someone at work or will prompt them to get acquainted with this language closer.
 
in the language. "Hung" them on the logical operators .
 
 

a = {? ? 3}
b = {? ? 4}
print (a & b) # -> {2}
print (a | b) # -> {? ? ? ? 4}
print (a ^ b) # -> {? ? ? 4}
print (a - b) # -> {? 3}, but one arithmetic is
# The operator still left

 
Continuing the conversation ...
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Welcome to the Android Devs Meetup on September 8

Welcome to the Android Devs Meetup on September 8  
 
We are pleased to invite all those interested in Android development on the eighth Android Devs Meetup Mail.Ru Group. Experts and developers of mobile applications will talk about mobile development technologies, discuss the features of using new tools and approaches, share personal experience. Mitap is held on the eve of the conference MBLT DEV 201? guests and authors of the best questions are expecting gifts from the organizers of the conference and Mail.Ru Group.
 
Program of the meeting under the cut.
 
here .   We are pleased to invite all those interested in Android development on the eighth Android Devs Meetup Mail.Ru Group. Experts and developers of mobile applications will talk about mobile development technologies, discuss the features of using new tools and approaches, share personal experience. Mitap is held on the eve of the conference MBLT DEV 201? guests and authors of the best questions are expecting gifts from the organizers of the conference and Mail.Ru Group. Program of the meeting under the cut.  here ...
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