Windows undocumented features
In this article I want to talk about some of the undocumented and hidden features of Windows. And also some windows secrets, windows descriptions and windows tricks. 1.) To warm…

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Book or internet?
Many are confident that in the near future the computer will completely supplant the book. And I am convinced that this will never happen. Computers and the Internet are crowding…

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What is conversion and how to correctly calculate it?
Conversion is an important concept in marketing. It gives an assessment of the effectiveness of the advertising campaign, displays the number of visitors who completed the targeted action on the…

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computer comes

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VPN on L2TP technology

L2TP is a tunneling protocol used to create virtual networks. Its main advantage is the ability to create virtual networks not only over IP networks, but also in Frame Relay, X.25 and ATM networks. Despite being similar to the OSI link layer protocol, L2TP is a session layer protocol using UDP port 1701.

The development of the protocol can be traced back to 1997, and in 1999, the RFC2661 standard appeared, describing it. It is believed that L2TP combined the best of both L2F and PPTP.

Scheme of work
To establish a connection, the remote system through the PSTN telephone network initiates a PPP Continue reading

File encryption

Encryption is the most common and essentially the simplest way to protect any information. After all, it seems that it could be simpler to take the text, take some algorithm known to you and your friends and using the algorithm to make gibberish from the text that no one except you and your friends will parse. Simple and pretty angry. To date, the solution remains the most reasonable.

However, many may argue, “then what is the effectiveness and complexity of encryption?” But it is in the selection of the algorithm. At the moment, there are a huge number of encryption systems and ciphers. Continue reading

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 out to be the easiest to defend against them. The Internet is teeming with dozens of different antivirus programs that offer us a quick and easy solution to the problem. But how good are these programs? How to make a specific choice?

Laboratory Research – Clean Water Cheating
Very often you can find on the Internet studies of various laboratories or some scientists there, which talk Continue reading

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Local Area Networks and the Internet
When a local area network is connected to the global Internet, one of the PCs, called a server, becomes a kind of conductor and connects to the Internet using a…

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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…

...

Internet cheating
money Surely everyone who is not the first day on the network, faced with various types of swindle. They ask to send money, download something or go to some link.…

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What should be a good selling site?
The topic for this post was born to me a long time ago, but after the next communication with one potential client, I decided not to postpone it anymore and…

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