MariaDB is a free, relational, open-source database management system created through a fork from MySQL. You can read our guide MySQL Vs MariaDB for WordPress for comparison. The project was initiated by MySQL's former lead developer, Michael Widenius, who also developed the Aria storage engine on which MariaDB was originally built (the software layer that contains the basic functionality of the … [Read more...]
Basics of Bootloader
A bootloader, from the shortened form of the original word bootstrap loader), also known as a launcher, is a special piece of software that is usually installed by a computer's system firmware (e.g., the BIOS, Open Firmware, or UEFI) from a bootable medium. loaded and then executed. The bootloader then loads other parts of the operating system, usually a kernel. This is why we often talk about … [Read more...]
What is Rootkit
A rootkit (administrator kit; root is the user with administrator privileges on Unix-like operating systems) is a collection of software tools that is installed on the compromised system after breaking into a software system in order to hide future logins of the intruder and hide processes and files. Today, the term is no longer limited to Unix-based operating systems, as rootkits for other … [Read more...]
What is Superuser (Root Account) in Unix & Linux
The root account or superuser account is the user account that must be created when installing an operating system and is equipped with the most extensive access rights. This account is not intended for day-to-day use of the system, but only for special administrative tasks because it involves extensive risks. For example, in the guide to Set up a passwordless SSH Login, we have asked the readers … [Read more...]
How To Set up a Passwordless SSH Login in Ubuntu 22.04
This guide is intended to disable the password-based SSH login for the root user and create an identity file-based SSH authentication like AWS, HP cloud provides a way to log in. If you are using VPSDime, you will get the option while reinstalling OS. Still, many of the web hosts deliver SSH login using the root user account. This is a security risk since any attacker can easily guess the username … [Read more...]
What is Rapid Prototyping
Rapid prototyping is the umbrella term for various processes for the rapid production of sample components based on the design data. Most rapid prototyping processes – except, for example, polyamide casting – can be attributed to additive manufacturing or .dem 3D printing because they work with layer-by-layer material application and without the use of a mold. Rapid prototyping refers to the type … [Read more...]
Install & Configure Fail2Ban on Ubuntu 22.04 (Apache2)
Fail2ban is an intrusion prevention system written in Python that runs on all POSIX operating systems that have a tamperable packet filtering system or firewall (e.g. iptables on Linux). The main purpose of fail2ban is to determine and block specific IP addresses that are likely to belong to attackers who want to gain access to the system. fail2ban identifies IP addresses from log files that … [Read more...]
What is Prototype in Technology
In technology, a prototype represents a functional test model of a planned product or component for the respective purposes, but often also simplified. It can only correspond to the end product from a purely external point of view or also from a technical point of view. A prototype often serves as a preparation for serial production, but can also be planned as a one-off piece that is only intended … [Read more...]
What is Runtime Environment
A runtime environment (RE), also known as the execution environment or sequence environment, describes the prerequisites of a particular runtime system that are available and defined at the runtime of computer programs. This is defined by the elementary components of the programming language, such as the behavior of language constructs and other functions such as type checking, debugging, code … [Read more...]
Web Application Framework Basics
A web framework is a framework designed for the development of dynamic websites, web applications, or web services. Repetitive tasks are simplified, and code reuse and software development self-documentation are encouraged. Concepts such as Don't repeat yourself, KISS or convention before configuration offer simple, clear structures that can be maintained with little effort. Through predefined … [Read more...]
Rewrite Engine Basics
A rewrite engine makes it possible to rewrite requests addressed to a web server internally or to forward them externally. For the Apache web server, the software module mod_rewrite does this job. Other web servers such as Microsoft IIS, Nginx, Lighttpd or Hiawatha web servers offer similar functions. This functionality was created in order to be able to provide an addressing scheme to the … [Read more...]