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ARP Poisoning Currently, apart from the viruses that surf the Internet freely, waiting for an unsuspecting user to fall into their traps, there are people who are dedicated to trying to force their entry into other people’s computers. Today we present what is the ARP Poisoning, a very effective technique, although a little old, used by hackers to achieve their …

Animated GIFs One of the most popular virtual resources currently are the gifs; we find them on Facebook, on Reddit, on Adds, and on hundreds of other websites and social networks; they can contain memes, fragments of films, motivating phrases, etc., and what makes them so popular is that they are moving images, like small fragments of video but with …

DNS Server DNS servers play a fundamental role in Internet browsing, and have an important influence on the speed and performance of your access to the network. The use of some or other servers, their modification, or the dangers of using the wrong DNS servers are some of the aspects you should know about. In fact, DNS servers are one …

There are different types of computer attacks that websites or servers suffer all the time. One very simple but that bears its fruits is the so-called brute force attack. Here we will show you how they steal a key by trying all possible combinations until they find the one that allows access. The intention is to show you how these …

A distributed system is defined as a collection of computers connected by a network, and with the appropriate distributed software so that the system is seen by users as a single entity capable of providing computing facilities. Distributed systems are implemented on various hardware platforms, from a few workstations connected by a local area network, to the Internet, with a …

Whenever we connect to a service on the Internet, be it a website, a mail server, a remote terminal server, or any other service, we usually do so by invoking a domain name. In this article we will talk about the domain name system, or DNS (Domain Name System), and its operation. Now, every connection between us and any service …