5 examples of designer pain: the most common phrases coming from customers and clients
No matter how many years have passed, and TK for the designer always remains a topic of discussion. Yes, what! Everything can be perfectly painted: what kind of pictures, fonts,…

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PPTP VPN
This protocol allows you to implement a secure point-to-point connection by creating a tunnel in an insecure network. The work of PPTP is to implement PPP frames in IP packets…

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Destination of proxies and NAT
A proxy server is designed to mediate between a workstation and a worldwide network. The proxy computer passes user requests through itself and then returns the results received from Inetrnet.…

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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

What is a firewall and why is it needed?
We will not go into little things like translating words, occupying them some part of the article. Just point out that a firewall (from the English - fire wall), or…

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Present day viruses
There are a huge number of computer viruses in the world. To establish their exact number (along with all modifications and upgrades) no one is taken. Instead, it is customary…

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Present day viruses
There are a huge number of computer viruses in the world. To establish their exact number (along with all modifications and upgrades) no one is taken. Instead, it is customary…

...

How to write articles. To help copywriters
Today, more and more people are trying themselves in copywriting. This is both good and bad. Good - because, as they say, the more professional the party, the more interesting…

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