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How to use SFTP (ssh file transfer protocol)
FTP is the standard method of transferring files or other data between computers, but it’s becoming more and more outdated in today’s...
How to configure an NGINX reverse proxy in 2025
NGINX is a high-performance web server widely recognized for its stability, rich features, and low resource consumption. As a reverse proxy, it acts...
How to set and list Linux environment variables
Linux environment variables are key-value pairs defining your system’s shell session and program behavior. They let system administrators easily...
How to install PostgreSQL on CentOS 9 + create roles and databases
PostgreSQL is an open-source relational database management system (RDBMS) known for its capability to handle large amounts of data, making it a...
How to install MongoDB on Ubuntu in 2025
MongoDB is one of the most popular open-source NoSQL database managers. It stores data in a formatted document instead of a tabular format. Since it...
How to remove all Docker images, containers, volumes, and networks in 2025
Docker images are the cornerstone of your Docker environment, serving as templates from which containers are created. However, these images can...
How to install Maven on Ubuntu: using apt and official website
Software development is one of the most challenging areas to work in. Fortunately, the right tools can make the development process more streamlined...
How to set the timezone in CentOS 7
While you are setting up a new server, very often you might have to set the timezone. In certain cases, you might want to change your timezone....
15 reasons you’re not making money with affiliate marketing + tips to change that
Affiliate marketing is a popular method to make money online. Most affiliates earn commissions from promoting products or services on their platforms...
25 best freelance websites to find work in 2025
The freelance economy is booming, and choosing the right platform can pave the way to building a thriving independent career. Whether you’re a...
Linux sed command: How to use and practical examples
The Linux sed command lets you find, replace, insert, and delete lines in a file without opening it using a text editor. Suitable for piped input and...
NGINX vs Apache –choosing the best web server in 2025
A web server is computer software that delivers content through the internet and transmits data between the host system and the user’s browser....
How to install Docker on CentOS 9 Stream + Docker Compose
Many sysadmins use Docker in their work because of the advantages it provides when handling containers in Linux. Docker is used primarily for the...
Linux touch command: what it is + examples of how to use it to modify timestamps
People usually associate the touch command in Linux with creating files. However, like many other Linux commands, it offers much broader...
How to install PostgreSQL on Ubuntu and usage instructions for effective database management
PostgreSQL is a popular open-source relational database management system (RDBMS) known for its scalability and efficiency in handling large amounts...
How to install, configure, and secure Redis on Ubuntu
Redis is an in-memory database used to store data temporarily as a cache to reduce server load and improve application performance. It is also a...
How to install Jenkins on Ubuntu in 2025
Typically, software development presents its own set of challenges. One of them is ensuring that software is built, tested, and deployed in a timely...
How to use the Linux watch command
The Linux watch command is a powerful tool that runs user-defined commands at regular intervals and displays the output. It’s important for...
How to use the Linux ping command in 2025: main usage ways and tips
The Linux ping command is a tool for diagnosing connectivity issues, monitoring network performance, and checking server availability. It is...
How to set up passwordless SSH on Linux
Due to its reliability and security, the secure socket shell (SSH) is the most common way to interact with a remote server. However, using this...
How to kill a process in Linux from the command line
In Linux, managing running processes is key to maintaining system performance and stability. If you encounter an unresponsive or misbehaving process,...
How to use the Linux dig command
The dig command, short for domain information groper, is a powerful network tool for querying domain name system (DNS) servers. It helps diagnose and...