Let’s see how to set up a Raspberry Pi to use it as a server on your local network. Below you will find a list of commands and actions to perform step by step to configure the device. [1] SERVER FTP mkdir -p /home/pi/files/ chmod 777 /home/pi/files/ sudo bash apt-get install pure-ftpd -y pure-pw useradd pi […]
Node.js and Python are two of the best back-end technologies. There are no “better” or “worse” programming languages, according to popular belief, and it all relies on the tastes of each developer. Node.js Node.js is a server-side platform based on the JavaScript Engine in Google Chrome. It employs an event-driven, non-blocking I/O architecture. It enables
Node.js Vs Python: What’s the Difference? Read More »
The latest version of Spotify has seen a big change in its graphical interface, and you can no longer find the button to manually clear all the cache of the files you listen to and download. After some time listening to streaming music, you may need to delete the old temporary files that the program
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What they are Hash are used in computer science to map a string (a sequence of bits) of arbitrary length into a string of predefined length. It is a sort of ‘signature’ of an electronic document. For each string you can calculate a hash, so each different string will have different hashes. However, calculating the
How to calculate hash MD5-SHA1-SHA-256-CRC32 in Windows Linux Mac and online Read More »
The MAC address (or MAC Address) is used by network cards to identify themselves in the exchange of information. MAC stands for Media Access Control and consists of a 6 byte (48 bit) long code. It is assigned by the manufacturer of the card at the time of its creation and is unique for each
How to change the MAC address to the network card on Windows Read More »
SOHO – Solar and Heliospheric Observatory EIT 304 EIT 195 EIT 171 EIT 284 LASCO C2 LASCO C3 H-Alpha H-Alpha Contrasted Nobeyama 17 GHz Magnetogram 525.02nm (Fe I) Solar X-rays Geomagnetic Field X-Ray flux Electron flux Proton flux Magnetometer Satellite Environment SOLAR WIND Total Electron Content (TEC) Latest 48h of photon data Solar
Solar activity in real time with SOHO (NASA ESA NOAA) Read More »
They say that the most used passwords are always the same (example: 123456, password, qwerty, etc. …), or in any case referable to birth dates or memorable moments of someone’s life. Well, using public characters or real places is not a good idea anyway: in fact there are some software (like John the Ripper) that are able to use huge dictionaries,
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How do I choose a password? There are many combinations, some more efficient, some less so; those that reminds us of our real lives should definitely be avoided. Google’s message is clear: “Man’s best friend (the dog) does an exemplary job in protecting your home – so begins an article by Fox Van Allen, writing
The ten most used (and not to be used) passwords Read More »
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
What are DNS, how to configure and protect DNS on Windows Read More »
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
