How to check CPU usage in Linux
Use the top command to quickly view real-time CPU usage, focusing on observing %Cpu(s) lines; 2. Install htop to obtain a clearer visual interface and support mouse operations; 3. Use mpstat to obtain detailed CPU usage statistics, which is suitable for analyzing performance trends. These three methods are suitable for rough viewing, intuitive display and in-depth analysis of scenarios.
Jul 09, 2025 am 12:34 AM
How to become root user in Linux
There are three main ways to become a root user in Linux: 1. Use the su command to switch, enter su- and provide the root password; 2. Execute a single command through sudo or use sudo-i to enter the rootshell; 3. Log in directly as root (not recommended), you need to set the password and modify the SSH configuration. It is recommended to give priority to the use of sudo to ensure safety.
Jul 09, 2025 am 12:28 AM
What does it mean if a Kubernetes Pod is in CrashLoopBackOff state?
CrashLoopBackOffinKubernetesoccurswhenacontainerrepeatedlycrashesafterstarting,leadingtoexponentialbackoffdelaysbeforerestarts.Commoncausesincludemisconfigurations,missingenvironmentvariables,faileddependencies,orapplicationerrors.Todiagnose:1)CheckP
Jul 09, 2025 am 12:13 AM
Install Guacamole for Remote Linux/Windows Access in Ubuntu
As a system administrator, you may find yourself (today or in the future) working in an environment where Windows and Linux coexist. It is no secret that some big companies prefer (or have to) run some of their production services in Windows boxes an
Jul 08, 2025 am 09:58 AM
Nethogs – Monitor Linux Network Traffic Usage Per Process
There are many open-source network monitoring tools available online for Linux operating systems. For instance, you can utilize the iftop command to track bandwidth consumption, the netstat or ss commands to view interface statistics, or the top comm
Jul 08, 2025 am 09:57 AM
How to Install Nagios Core in Rocky LInux and AlmaLinux
Nagios is a free and open-source tool for monitoring systems, networks, and infrastructure. Nagios provides a web interface for viewing current network status, log files, notifications, and much more. [ You might also like: 22 Linux Networking Comman
Jul 08, 2025 am 09:53 AM
How to Install TightVNC to Access Remote Desktops in Linux
Virtual Networking Computing (VNC) is a remote sharing system that enables control over any internet-connected computer. Keyboard and mouse inputs can be easily transmitted between systems. This tool allows administrators and technical personnel to m
Jul 08, 2025 am 09:52 AM
How to Install Magento on Rocky Linux and AlmaLinux
Written in PHP, Magento is a popular open-source, and versatile eCommerce platform that provides businesses with an online shopping cart. It leverages various PHP frameworks such as Symfony and Laminas to enhance its functionality and usability. Mage
Jul 08, 2025 am 09:50 AM
How to Install SVN on RHEL-Based Linux Distributions
Written in C programming language, Apache Subversion, commonly known as SVN, is a free and open-source version control system that records historical versions of files and directories.In simple terms, SVN functions as a version tracker, enabling user
Jul 08, 2025 am 09:48 AM
How to Install Zabbix Agents on Remote Linux
Continuing the Zabbix series, this tutorial will guide you on how you can install and configure Zabbix agents on Linux (Debian-based systems and RHEL-based distros) in order to actively monitor local resources on remote systems. The main job of Zabbi
Jul 08, 2025 am 09:47 AM
How to Install Cacti on Rocky Linux and AlmaLinux
Cacti is an open-source web-based network monitoring and graphing tool written in PHP. It was designed as a front-end application for data logging using RRDtool. Cacti uses the SNMP protocol to monitor devices such as routers, servers, and switches.
Jul 08, 2025 am 09:46 AM
How to Install Java 14 on CentOS/RHEL 7/8 & Fedora
Java is a secure, well-known, and stable general-purpose programming language and computing platform with numerous integrated capabilities.To run applications based on Java, you must have Java installed on your system. Typically, you will require the
Jul 08, 2025 am 09:44 AM
How to Install Skype on Rocky Linux / AlmaLinux
Skype is a widely used communication platform that allows individuals from all over the globe to connect effortlessly. With Skype, staying in touch with family, friends, and coworkers across the world becomes quick and hassle-free.The application sup
Jul 08, 2025 am 09:43 AM
How to trap signals like SIGINT or SIGTERM in Bash?
The method of using trap to capture signals is to use trap'command'SIGNAL syntax, such as trap'echo" to capture SIGINT, exiting..."'INT; the cleaning operation can be encapsulated into a function and bound multiple signals, such as trapped ingestion and binding multiple signals, such as trap's entry; precautions include avoiding calling complex commands such as exit in trap, setting trap multiple times will overwrite, resetting trap after child processes or exec, and debugging mode may affect behavior; actual applications include deleting temporary files, releasing resources, preventing errors in exit, and also ignoring signals such as trap''INT; finally, test whether the trap is effective.
Jul 08, 2025 am 01:20 AM
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