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FTP is the standard method of transferring files or other data between computers, but it’s becoming more and more outdated in today’s...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
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
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...
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: Which web server is better for performance and scalability?
When comparing NGINX vs. Apache, architecture plays the biggest role. Here’s how the two web servers differ in terms of architecture,...