DNS stands for Domain Name System, it is the protocol used globally for domain name translations. What does it mean? When we type in the name of a website (e.g. spaceclick.com) our computer sends a DNS request to an appropriate server to translate this name into an IP address (e.g. 105.0.0.155). And then it connects to that IP address […]
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Punycode is an encoding system that serves to represent a sequence of unicode characters via an ASCII character sequence, to make it possible to use these sequences in domain names, without having to modify existing infrastructure and standards. In this way you can manage internationalized domain names (IDNA) by adding the characters ‘xn–‘ to the beginning of the punycode string. For example, by entering xn–google.com as address, we
A computer or any device, when connected to a network (LAN), is identified by an IP address assigned by the router. This address is usually in the form 192.168.X.Y and it is released by the router’s DHCP to identify the various devices connected to it. However, since the router itself is connected to the Internet
What is cUrl cUrl is an open source object programming language, it’s very useful in web applications where a strong inter-compatibility between protocols and documents is required. In particular, it avoids the developer having to use multiple programming languages, making a single framework available in a series of functions combined between markup (HTML or JS) and computational languages (Java, C#, C++…).
Sigcheck is a useful tool provided free of charge by Microsoft to check your computer for harmful digital certificates. You can download it from the Ms-TechNet website. You can download it from the site, click on How to use and once you have downloaded the tool and extracted the .zip, open a prompt window on the folder (by pressing the SHIFT key
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A simple guide to create a shared folder accessible and writable from any device on the local network. Valid for Ubuntu, Debian, RaspberryPi, etc… Warning: this is one of the simplest and shortest procedures and creates a public folder; to create folders with users and passwords the procedure is more complicated. 1. install samba sudo apt-get
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Everything you need to know about Connections – Protocols – Modems – P2P – Browser – HTML – WWW – Viruses – Antivirus – Firewall – Ports – Your IP – Speed Test – General Facts WHAT IS A CONNECTION The network connection In general, a computer is said to be connected to the
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Test open ports and firewalls Test TCP and UDP ports, to check the correct communication of your computer with the outside, through your NAT. You can check a particular port or run a complete test of all ports. TCP PORT SELECTIVE TEST Enter the number of the port to check and press ‘Test’ from
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All the new generation browsers allow you to store passwords entered by the user, so that you can enter them in the forms the next time you visit the site. Internet Explorer used to do this, but so do Firefox, Edge, and Chrome as of recently. For IE and Edge, passwords are encrypted
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To display the Windows 10 Product Key Open a command prompt as administrator, you will find it by right-clicking on the start menu logo. Type the following command: wmic path SoftwareLicensingService get OA3xOriginalProductKey and press enter. Alternative to PowerShell: open PowerShell as administrator and execute the commands Set-ExecutionPolicy RemoteSigned .\GetProductKey.ps1 The currently installed Windows product key will be displayed. You
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