How to calculate a person’s location by IP
Each computer has its own network card - IP, designed specifically for searching, receiving and transmitting information. The IP address on the PC can be local, dynamic, or static. The…

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E-Wallet Protection
When comparing the degree of protection of client programs of payment systems Yandex.Money and Webmoney, it turned out that the latter offers more reliable means of protecting client data. However,…

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Destination of proxies and NAT
A proxy server is the link between users and the Internet. Proxy server - a server that is constantly on the Web, transmitting all requests from the user computer to…

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your abilities

Code optimization

In the process of writing code, it is impossible to detect all errors and correct them. Writing a code, especially in large volumes, is a monotonous thing, somewhat tedious and often repeated, so the eye becomes blurry. Search and correction of errors is for me personally a separate finishing procedure. In addition to obvious errors, illogical sections of code often pop up, which also have to be rewritten, simplified, and eliminated.

In addition to fixing errors and other shortcomings, you need to take care of optimizing content for search engines. Search engines impose certain requirements on websites, which only multiply every year, and if you have not decided to deliberately close the site from indexing, you should adhere to these requirements. Continue reading

Linux operating systems

Linux is not an operating system, but just its kernel. Everything that you are accustomed to see and understand as an OS (buttons, windows and panels) – in fact, it is not. What you see is the GUI (Graphical user interface), that is, the graphical user interface, also called the graphical environment or graphical shell. GUI is a program designed to simplify the life of the user so that he does not suffer from the console. In fact, any OS looks like a console, that is, like the good old DOS.

The types of operating systems built on the Linux kernel vary widely both in providing a working environment and in the set of applications available in the OS. This is partly because some programs support only some GUIs or depend on other programs that are not in the system. A quick overview of the differences Continue reading

Bat files, examples

You can perform all the examples published below not only by creating and running a BAT file containing these commands, but also copying them directly to the command line.

To open the command line in the right place (in the folder with files, for example), you need to call the context menu (RMB) with the Shift key held down:

command line call

You can read about how to work with the command line in this article. We pass directly to the teams. Continue reading

Creating BAT files
People who are familiar with the term batch file know that BAT files can significantly simplify life and save time if you can write and use them correctly. In this…

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Computer assembly, pitfalls
Assembling a computer, especially a new one, is a lottery game. A number of factors that are not dependent on the builder can lead to the fact that the computer…

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Overview of modern antiviruses
Of all the threats to the security of user information, viruses stand apart. These small malicious programs, if not handled carefully, can steal or destroy any data. But it turns…

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Apple iPhone OS
Preamble: Recently, all sorts of mobile and, especially fashionable, cloud technologies have captured the attention of mankind. Desktops and laptops faded into the background, giving way to more compact and…

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