The RHCSA (Red Hat Certified System Administrator) exam is a performance-based certification exam offered by Red Hat. It is designed to validate the skills and knowledge required to effectively administer Red Hat Enterprise Linux systems in various enterprise environments. The…
This article is part of the following series. Understanding MAC address in Linux In Linux, a MAC address (Media Access Control address) is a unique identifier assigned to a network interface. It is a hardware address that is associated…
There are a few different ways to search files by size in Linux. One way is to use the find command. The find command is a powerful tool that can be used to search for files based on a variety…
Preserve file permissions using -p option in cp command To preserve the file permissions when copying files or directories using the cp command, you can use the -p or –preserve option. The -p option will preserve the following attributes of…
The error message “cp: Permission denied” typically occurs when the user doesn’t have permission to access the source file or the destination directory. Here are the errors we usually meet with “cp Permission denied” error in Linux: Error Description cp:…
This article is part of the following series. RPM packages can contain not only the software itself but also its dependencies, which are other software packages required for the software to function properly. Managing RPM package dependencies is crucial…
A connection timeout means that the client attempted to establish a network socket to the SSH server, but the server failed to respond within the timeout period. ssh: connect to host 203.0.113.0 port 22: Connection timed out In PuTTY, you…
This article is part of the following series. If you’re working with an RPM-based Linux distribution, you may need to list the files that are contained within an RPM package. This can be useful for a variety of reasons,…
systemctl is a command-line utility in Linux operating systems that is used to control and manage the system’s services, daemons, and other processes. It is an essential tool for system administrators and developers as it allows them to monitor and…
FIPS stands for Federal Information Processing Standards—a set of standards and guidelines developed by the U.S. federal government to establish uniform requirements for information security, including computer security, data protection, and cryptography. What is FIPS? FIPS publications are used by federal…
