How to Upgrade CentOS 7 to CentOS 8 Linux
In this guide, you will learn how to upgrade CentOS 7 to the CentOS 8.5 version. The process outlined here does not represent an official method and is not recommended for use on production environments at this time.Step 1: Install the EPEL Repositor
Jul 07, 2025 am 09:23 AM
Cockpit - A Browser-Based Administration Tool for Linux
Cockpit is an easy-to-use, lightweight, and simple yet powerful remote manager for GNU/Linux servers, it’s an interactive server administration user interface that offers a live Linux session via a web browser. It can run on several RHEL-based Linux
Jul 07, 2025 am 09:22 AM
How to Install AlmaLinux 8.5 Step by Step
As CentOS 8 draws steadily to End of Life on December 31st, 2021, efforts have been made to come up with centos alternative distributions which will fill in the big shoes left by CentOS 8. This comes following RedHat’s decision to dump CentOS 8 in fa
Jul 07, 2025 am 09:19 AM
Guake – A Drop-Down Linux Terminal for Gnome Desktops
Linux command line is the best and most powerful thing that fascinates a new user and provides extreme power to experienced users and geeks. Those who work on Server and Production, are already aware of this fact.It would be interesting to know that
Jul 07, 2025 am 09:18 AM
Terminator - Manage Multiple Linux Terminals in One Window
Terminator is a Linux terminal emulator, which is released under General Public License and is available for GNU/Linux operating systems. The application allows you to use multiple terminals simultaneously within one window, split and resized as need
Jul 07, 2025 am 09:17 AM
How to Install XFCE Desktop in RHEL, Rocky Linux & AlmaLinux
The XFCE desktop environment is one of the many desktop environments that you can install on your Linux system to improve usability. It is among the earliest desktops, initially released in 1996 as a substitute for the CDE (Common Desktop Environment
Jul 07, 2025 am 09:10 AM
How to Install Zabbix on Rocky Linux and AlmaLinux
Proper monitoring is an essential ingredient for the effective management of your overall IT infrastructure. A robust real-time monitoring solution provides detailed visibility of your network and application performance. It helps to identify actual
Jul 07, 2025 am 09:09 AM
Reset Forgotten Root Password in Rocky Linux / AlmaLinux
It happens. Yes, sometimes you might forget your passwords, including the root password which is essential for performing tasks that require elevated privileges. This could be due to a number of reasons such as not logging in as root for a long time
Jul 07, 2025 am 09:05 AM
How to write a for loop to iterate over a list of items?
In programming, a for loop can be used to perform the same operation on each item in the list. 1. By traversing the list elements and executing the specified code, unified processing is achieved; 2. Each element can be processed in combination with operations, conditional judgment and other operations; 3. If indexing is required, the index and value can be obtained at the same time by using the enumerate() function; 4. The writing methods of different languages ??are slightly different but the logic is consistent, such as for...of in JavaScript. It is key to correctly naming variables and paying attention to syntax details.
Jul 07, 2025 am 01:02 AM
What is distributed tracing and how does it help debug microservices?
Distributedtracingisessentialfordebuggingmicroservicesbytrackingrequestsacrossservices.ItassignsauniqueIDtoeachrequestandrecordsspansthatlogserviceactionsanddurations.Thismethodrevealswhichservicecausederrorsordelays,connectslogsacrossservices,andvis
Jul 07, 2025 am 01:00 AM
How to add a new user to a Linux system?
Adding new users to Linux system requires using the useradd command and setting passwords and permissions. 1. Use sudouseraddusername to create a user, and add the -m parameter to automatically create the home directory; 2. Use sudopasswdusername to set the password, and the chpasswd command can be used in the script; 3. Use sudousermod-aGsudousername to add the user to the sudo group to assign administrator privileges; 4. Use groupsusername command to view the group to which the user belongs; 5. Use sudopasswd-lusername to lock the user password, and use sudodeluser--
Jul 07, 2025 am 12:55 AM
What are ConfigMaps and Secrets in Kubernetes?
ConfigMap is used to store non-sensitive configuration data, and Secret is used to store sensitive information. Both manage data through key-value pairs and mount it into a pod, but Secret stores data in Base64 encoding by default and requires additional protection. ConfigMap can be used to store database connection strings, function switches or configuration files, etc., and can be created through literals, files or directories, and mounted as environment variables or volume files. Secret is suitable for sensitive data such as passwords, API keys or TLS certificates, and can also be mounted as environment variables or files, but its data is not encrypted. It is recommended to combine encrypted data at rest or external tools to enhance security. When using it, you should avoid hard-code sensitive information in YAML and pay attention to permission control
Jul 07, 2025 am 12:54 AM
What is a runbook in a SRE/DevOps context?
ArunbookinSRE/DevOpsisadocumentedplaybookcontainingstep-by-stepproceduresforhandlingoperationaltasks,incidents,orsystemchanges.Itincludesdetailedinstructions,command-linesnippets,usageconditions,toollinks,andescalationpathstoensureconsistent,efficien
Jul 07, 2025 am 12:53 AM
How to install linux apps on chromebook
ChromebookscannowrunLinuxapps,significantlyexpandingtheircapabilities.ToenableLinuxonasupportedChromebook,gotoSettings>Advanced>DevelopersandtoggleonLinux(Testing),whichinstallsaDebian-basedenvironment.Onceinstalled,opentheTerminalappandupdatet
Jul 07, 2025 am 12:50 AM
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