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VPN Basic Concepts and Classification
The term VPN (Eng. “Virtual Private Network”) refers to a group of technologies that provide a network connection, or the so-called logical network, functioning on top of some other network, usually the Internet.
Although data is transferred to a VPN over networks with a low level of trust, thanks to the use of cryptography, the level of trust in a VPN can be arbitrarily high. Among the cryptography tools used are encryption, means to protect against changes in transmitted messages, public key infrastructure and authentication. Depending on the final destination, the VPN implements three types of connections: network-to-network, node-to-network and node-to-node.
VPN implementation and structure 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 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 about the advantages of various antiviruses over others. Do not pay attention to this bluff, all antiviruses have disadvantages and advantages, and there is no better. In addition, often these laboratories are subsidiary laboratories that develop certain antivirus programs. You yourself can guess how objective their judgments are.
No matter what. Continue reading
What is important for the internet user?
What is important for the internet user? Speed and price? Aw, users! Speed, price and service are said by users. Support – the most literate pronounce weightily. You are at one in the night in a video chat with a friend from Singapore. Or just watch YouTube, football and your favorite series on YouTube. And here are the problems with the signal. And you are a normal person, that is, you do not understand the configuration and maintenance of networks at all. What to do? Mouse out the window? A keyboard on the floor and a sistemnik foot?
Specialists of the technical department of the Express company answer unequivocally and categorically: 80% of the problems of signal disruption can be solved by telephone, without leaving your computer. Unless, of course, your provider has a 24-hour customer support service.
The Internet service provider Express has such a support service, and has been working since the foundation of the company in 1998. Its employees know about the Internet not just everything, but in general everything that you can know. They study and apply the latest technologies in their work. We ask them what are the advantages of the newfangled 4G? Continue reading
