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Browse the latest tutorials, guides, and practical examples across Linux, DevOps, security, databases, and programming on GoLinuxCloud.

Explore the latest tutorials and guides across Linux, DevOps, programming, and more.

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  • Tools: Useful tools and utilities for productivity

3098 articles

Blog illustration with latest articles, tutorials, guides, and how-to content across Linux and DevOps topics
cloud

Solved 'No valid host was found. not enough hosts available'

Fix Overcloud "No valid host was found. There are not enough hosts available" on Undercloud OpenStack with Red Hat — baremetal, IPMI, compute services, and flavor property mismatches.

Deepak Prasad5 min read
linux

Step-by-Step: Upgrade multiple HPE VC firmware with SUM

Step by step guide to upgrade multiple HPE VC firmware (Virtual Connect) using Smart Update Manager. Perform parallel upgrade of the VC using SUM.

Deepak Prasad10 min read
storage

Tutorial: What is GlusterFS shared storage and types of volumes

What is GlusterFS Tutorial Replication Types of Volumes. Distributed Volume Replicated Volume. RHEL CentOS 8 glusterfs shared storage. gluster file system linux

Deepak Prasad6 min read
linux

How to set GRUB2 password using grub2-setpassword (RHEL / CentOS 7)

Steps to set grub2 password using grub2-setpassword for unautorized modification of grub2 entries. Also steps to remove grub2 password from rhel /centos 7

Deepak Prasad3 min read
linux

How to change IO scheduler permanently in Linux

Steps to change IO scheduler permanently in Linux using tuned profile and grub2 kernel or you can change IO scheduler using /sys/block/sdX/queue/scheduler

Deepak Prasad3 min read
linux

/etc/network/interfaces missing in Ubuntu

If you are using Ubuntu, you must have encountered the "/etc/network/interfaces missing" error. Because Ubuntu 18.04 and above uses netplan to configure your

Omer Cakmak4 min read
linux

Linux find File using the command-line [8 Different Ways]

In this tutorial we have covered 8 different methods to find file in Linux using filename, file extension, file type, file size, file's modification date, file permission, file ownership etc

Deepak Prasad8 min read
linux

Install MongoDB on Rocky Linux 8.4 (Step-by-Step)

In this tutorial we will cover the steps to install MongoDB on Rocky Linux.

Deepak Prasad5 min read
system-administration

3 easy steps to configure gmail smtp relay with postfix

Step by step tutorial to configure postfix using third party gmail smtp relay to send mails to external network. Use SASL with Google 2-Step Authentication

Deepak Prasad7 min read
system-administration

Install & configure FreeIPA Server & Client (RHEL/CentOS 7)

Step by Step guide tutorial on how to install and configure FreeIPA, ipa server LDAP, kerberos, DNS and IPA client on RHEL/CentOS 7 Linux with GUI and CLI

Deepak Prasad12 min read
devops

What is fencing | Setup KVM cluster fencing RHEL CentOS 8

Step-by-Step Tutorial to configure cluster fencing, stonith device in RHEL and CentOS 8 Linux. Use fence_xvm to fence KVM HA Cluster nodes. Setup pacemaker fencing.

Deepak Prasad10 min read
linux

Install Oh My Zsh on Linux [Step-by-Step]

Step by Step instructions to install Oh My Zsh on different Linux distributions such as Ubuntu, Red Hat, CentOS, Debian, OpenSuSE, Arch Linux

Omer Cakmak5 min read
programming

Using Node.js with Visual Studio Code

Knowing how to use Node.js with Visual Studio Code is easy. All you do is install your preferred Node.js version and Visual Studio Code for your operating

Steve Alila7 min read
programming

How to use Node.js with Eclipse IDE [Step-by-Step]

Step by Step instructions to setup and use node.js with Eclipse IDE with examples to write your first code.

Steve Alila7 min read
linux

Convert CentOS 8 to Rocky Linux 8

As you know, CentOS Linux 8 became the end of life on 31 Dec 2021. It will now continue its life as CentOS Stream 8. Many people/organizations using CentOS

Omer Cakmak5 min read
programming

How to use Node.js with Atom IDE [Step-by-Step]

Step by step instructions to use node.js with Atom IDE. Create and run your first JS using Atom IDE.

Steve Alila5 min read
programming

How to use Node.js with Sublime Text IDE

Step by Step instructions to use node.js with sublime text IDE. Install Node.Js and Sublime Text IDE for the Integration.

Steve Alila5 min read
devops

Weather Data Made Easy: Mastering API Integration for Developers

Weather information is vital in our daily lives, from planning outdoor activities to making informed decisions in sectors like agriculture, transportation,

Deepak Prasad7 min read
devops

Install ELK stack on Rocky Linux 8

Step by step instructions to install ELK Stack on Rocky Linux. Install Elasticsearch, Logstash and Kibana

Deepak Prasad8 min read
linux

How to Enable Wake-on-LAN in Ubuntu 22.04? [SOLVED]

In this article we will tell you how to enable Wake-on-LAN in Ubuntu and example usage.

Omer Cakmak4 min read
system-administration

Create KVM virtual machine | virt-manager | RHEL CentOS 8

Step-by-Step Guide to create KVM Virtual Machine using Virtual Manager in RHEL and CentOS 8 Linux. Create VM, Take Snapshot, Assign Networks using Virtual manager GUI

Deepak Prasad6 min read
linux

Install MongoDB on AlmaLinux 8 [Step-by-Step]

Step by Step instructions to install mongodb on AlmaLinux 8. Access mongodb shell, create admin user, establish a connection with mongodb server using a different client. configure firewall and selinux

Deepak Prasad6 min read
linux

Could not resolve host: mirrors.rockylinux.org

3 possible solutions to Could not resolve host: mirrors.rockylinux.org and Failed to connect to mirrors.rockylinux.org port 443: Connection timed out

Omer Cakmak6 min read
linux

Install Rancher on Rocky Linux 9 [Step-by-Step]

Step by step instructions to install rancher on Rocky Linux 9 with screenshots.

Omer Cakmak6 min read
system-administration

3 simple and useful tools to grep multiple strings in Linux

How to grep multiple strings and patterns in single line from a file in Linux or Unix? Is it possible to grep multiple strings using single command from a file?

Deepak Prasad10 min read
linux

Remove Directory in Linux PROPERLY & SAFELY

In this tutorial I have shared the commands and examples to remove directory in Linux properly without loosing any data. Delete directories and sub directories using single command with and without regex

Deepak Prasad5 min read
programming

SOLVED: Get script directory path in Node.js

Node.js get script directory, node.js get current directory, node.js get absolute path, node.js get absolute directory path

Steve Alila5 min read
programming

How to setup Laravel in Docker? [2 Methods]

It would help to know Laravel, Docker, and Linux basics.- In this article, we will explore how to setup Laravel in Docker using two different methods:

Steve Alila12 min read
programming

HackerRank Solution: Python Capitalize!

In this tutorial we will cover following solutions for hacker rank problem capitalize in python Solution-1: Using for loop, Solution-2: Using a user- defined function, Solution-3: Using .join() method, Solution-4: Using …

Bashir Alam5 min read
linux

Install R on Rocky Linux 8 & 9

Step by Step instructions to install R Programming Language in Rocky Linux. Download and Install specific version of R language

Omer Cakmak5 min read