Today, spam is a threat to computer security. We will look at where spam comes from and how it has changed.
We explore the fight between spammers and security experts. Plus, we will talk about how to stop harmful messages.
An end user is a mass of users who do not have professional knowledge of a computer’s hardware and software resources or perform basic tasks.
A Proxy is in the context of computer networks and refers to a program or device that acts on behalf of someone else. Its most common purpose is a server used to allow Internet access to all computers in an organization when only a single computer or IP address is connected.
Gopher was a system that existed before the World Wide Web to organize and view files on Internet servers.
PfSense (PF) is a FreeBSD-based operating system designed to install and configure a firewall that can be easily configured through the web interface and can be installed on any PC.
A firewall in a computer network is part of a system or computer network designed to prevent unauthorized access while allowing authoritative communications.
PHP is an interpreted programming language designed for the creation of dynamic web pages. It is often used in server-side interpretation.
It can be used from a command-line interface or in the creation of other program types that include applications with graphical interfaces using Qt or GTK+ libraries.
Google Chrome is a web browser developed by Google company and compiled based on open-source components such as the WebKit rendering engine and application development framework.
Microsoft Corporation is a computer company founded in 1975 by Bill Gates and Paul Allen. The company, which develops, produces, and licenses software and electronic equipment, is headquartered in Redmond, Washington, USA.
Netscape Navigator is the first commercial web browser developed by Netscape Communications and created by Marc Andreessen.
JavaScript (JS) is a programming language interpreted as the dialect of the ECMAScript standard and is defined as object-oriented, prototype-based, mandatory, poorly written, and dynamic.
The Opera web browser is a web browser created by the Norwegian company Opera Software. It is one step ahead of other browsers with its speed, security, standard support, small size, and continuous innovation.
It has differentiating features such as tabbed browsing, speed dialing, mouse movements during navigation, personalization by site, and thumbnail view on tabs.
The keyboard (KB) is the peripheral device that allows you to enter information, and it has about 99 and 108 keys. It is divided into four blocks: function, alphanumeric, particular block, and numerical block.
Infrared (IR) light is one of the many types of light that make up the electromagnetic (EM) spectrum. Moreover, visible light has wavelengths between 4000 and 7000 A, or between 0.4 and 0.7 microns.
That is, infrared light has wavelengths between 0.78 and 10,000 thousandths of a millimeter, and its frequency ranges from 0.3 to 384 trillion hertz.
Bluetooth is an industrial feature for Wireless Personal Area Networks (WPAN) that provides voice and data transmission over a radio frequency link in the 2.4 GHz ISM Band.
A laser beam is light amplification by stimulated emission of radiation. It allows us to perform welds, cuts, surface treatments, and drilling operations more effectively and quickly than traditional methods.
It is basically a handy tool in most branches of science related to mechanical engineering and materials processing.
An LED (Light-Emitting Diode) is a semiconductor device that emits low-spectrum inconsistent light when the PN joint is directly polarized and an electric current passes through it.
Fiber optic is a fragile transparent glass material widely used in data networks through which light representing the data to be transmitted is sent.
A twisted-pair cable is a connection in which two insulators are crossed to have less interference, increase power, and reduce the crosstalk of adjacent wires.
