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How to Change Password in CentOS 7 via Command Line

In today's digital world, security is paramount. One of the fundamental aspects of securing your system is ensuring strong, regularly updated passwords. CentOS 7, a popular Linux distribution known for its stability and reliability, offers several methods to manage user passwords, including through the command line interface (CLI). In this guide, we'll walk you through the steps to change a password in CentOS 7 using the command line. Why Change Your Password? Changing passwords regularly is a vital security practice......
How to Change Password in CentOS 7 via Command Line
In today's digital world, security is paramount. One of the fundamental aspects of securing your system is ensuring strong, regularly updated passwords. CentOS 7, a popular Linux distribution known for its stability and reliability, offers.....
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How to Write Scripting in Centos 7
What is Shell? Shell is a UNIX term for an interface between a user and an operating system service. Shell provides users with an interface and accepts human-readable commands into the system and executes those.....
How to Install a Wildcard SSL Certificate on Multiple Servers
Installing a wildcard SSL certificate on multiple servers involves several steps, including generating the certificate and key pair, distributing the certificate files to each server, and configuring the web server software. What is a Wildcard.....
How to Migrate a Physical System to a KVM Virtual Server
Migrate physical system to KVM virtual server involves converting the physical machine's operating system, applications, and data into a virtual machine (VM) that can run on the KVM hypervisor. Here's a step-by-step guide on how.....
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How to Add Virtualizor on Centos 7
Virtualizor is a web-based VPS control panel that allows you to manage virtual machines on your CentOS server. Here's a step-by-step guide on how to install Virtualizor on CentOS 7. Prerequisites: a) Clean CentOS 7.....
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How to Find Trojan File in Centos 7
Step 1:- Update Software. Ensure that your system is up-to-date with the latest security patches and updates. Use the following commands to update your system:- # [ sudo yum update ] Step 2:- Install Security.....
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How to Install php 7.4 in centos 7
To install PHP 7.4 on CentOS 7, you can use the Remi repository, which provides up-to-date versions of PHP. Here's a step-by-step guide:- Step 1:- Enable the Remi Repository:- a) Install the EPEL repository first,.....
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How To Install NGINX On Centos 7
Step 1: Update System Packages. Ensure that your system packages are up-to-date # [ sudo yum update ] Step 2: Install NGINX. Use the following command to install NGINX: # [ sudo yum install nginx.....
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How to Setup Cron Jobs on Centos 7
Step 1: Access the Crontab Configuration. Open a terminal on your CentOS 7 server. Step 2: Edit the Crontab File. a) Use the following command to open the crontab file for the current user:- #.....
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How to Install FTP in Centos 7
Step 1: Update the Package Repository. a). Before installing any software, it's a good practice to update the package repository to ensure you are getting the latest versions of packages. Open a terminal and run:-.....
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A Step-by-Step Guide: Installing phpMyAdmin on CentOS
Installing phpMyAdmin on CentOS: Step 1: Update Your Server Before installing any new software, it's crucial to ensure your system is up to date. Open a terminal and run the following commands: #sudo yum update.....
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How to Install MySQL or MariaDB on Centos 7.
Install MySQL on CentOS 7... Step 1: Update the System. # [ sudo yum update ] Step 2: Install MySQL. # [ sudo yum install mysql-server ] Step 3: Start MySQL Service. # [ sudo.....
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How To Change The Hostname in Centos 7.
Step 1: Open a terminal window. You can do this by pressing 'Ctrl + Alt + T' or by accessing the terminal from the Applications menu. Step 2: To check the current hostname, you can.....
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How to Install Apache in Centos 7.
Step 1: Open a terminal. Step 2: Update your system's package repository information:- # [ sudo yum update ] Step 3: Install the Apache package:- # [ sudo yum install httpd ] Step 4: Start.....
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How to Add an Additional IP in Centos 7.
# To add an additional IP address in CentOS 7, you can use the 'ifcfg' files in the '/etc/sysconfig/network-scripts/' directory. Here are the steps:- Step 1: Navigate to the network scripts directory. # [ cd.....
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A Comprehensive Guide: Setting Up Reverse DNS PTR Record on CentOS
Step 1: Access Your DNS Server Configuration Ensure you have access to your DNS server configuration, which is often managed by your hosting provider or through a control panel like cPanel or Plesk. Step 2:.....
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How to Install SSL in Centos Server.
Here are the general steps to install SSL on a CentOS server. Step 1: Install OpenSSL. Ensure that OpenSSL is installed on the CentOS server. You can install it using the following command:- [ sudo.....
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How To Take Backup of MySQL on Centos 7.
Step 1 : We are going to use mysqldump to create a backup dump of the database, to backup all the databases, create backup folder. [ mkdir /var/lib/mysql/backup] Step 2 : Lets check the databases.....
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How to Setup Nginx HTTP Server on Ubuntu 18.04 LTS Server #2
Step 1: Updating Ubuntu Server sudo apt update Step 2: Installing Nginx on Ubuntu Server sudo apt install nginx Step 3: Managing Nginx Web Server — Stops the server:  sudo systemctl stop nginx.service — Start.....
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