Introduction to DNF command DNF (Dandified Yum) is a package manager tool in RPM-based Linux distributions such as RHEL, CentOS, Rocky Linux, OEL and Fedora. It can install, update, or remove the software packages on
Introduction to yum command yum (Yellowdog Updater Modified) is a tool in an RPM-based Linux system for managing the packages. It can install, update and remove packages on the system. It also provides information about
Introduction to chage command in Linux chage command is used to view and modify the user's account and password expiry information. It modifies the date of password expiry, last password change, and account expiry. System
Introduction to tar command tar stands for tape archive. tar command is used to create and extract the archive file in the Linux system. tar is an important tool as it provides archiving functionality in
Perform sysctl reload - Introduction A sysctl variable represents file locations under the /proc/sys directory. Everytime you make changes to your sysctl configuration file, you must reload it to activate the changes. Now sysctl is not controlled by some
Introduction to ssh command in Linux ssh (Secure Shell) is a command-line tool in Linux that allows you to log into a remote machine and execute commands. ssh connects and logs into the specified hostname.
Introduction to nmap command Nmap (Network Mapper) is an open-source command-line tool in Linux for network exploration and security auditing. It uses raw IP packets to determine hosts, services, operating systems, packet filters/firewalls, and other