[ad_1] When troubleshooting system or application slowdown or misbehavior, one of the first things to check is the system memory usage. This article explains how
[ad_1] Vim or its precursor Vi comes preinstalled on most Linux distributions and macOS. Knowing the basics of Vim is important if you are a
[ad_1] Let’s Encrypt is a free, automated, and open certificate authority developed by the Internet Security Research Group (ISRG) that provides free SSL certificates. Certificates
[ad_1] Renaming directories is one of the most basic operations you often need to perform on a Linux system. You can rename directories from the
[ad_1] A tar archive is a file that stores a collection of other files, including information about them, such as the ownership, permissions, and timestamp.
[ad_1] cURL is a command-line utility for transferring data from or to a remote server using one of the supported protocols. It is installed by
[ad_1] SFTP (SSH File Transfer Protocol) is a secure file protocol for transferring files between two hosts over an encrypted connection. It also allows you
[ad_1] Apache Cassandra is a free and open-source NoSQL database with no single point of failure. It provides linear scalability and high availability without compromising
[ad_1] Secure Shell (SSH) is a network protocol for creating a secure connection between a client and a server. With SSH, you can run commands
[ad_1] Nagios is a popular open-source monitoring system. Nagios keeps an inventory of your entire IT infrastructure and ensures your networks, servers, applications, services, and