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How To Install OpenSSL 1.1.1 on CentOS 9 or Fedora 41

This tutorial goes through how to install openssl 1.1.1 on CentOS 9

Requirements

Upgrade the system

sudo dnf -y update

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Linux Security Hardening Guide 🛡️

A comprehensive guide to hardening Linux systems with practical implementations, use cases, and before/after comparisons.

Table of Contents

• Firewall Configuration
• SSH Security Hardening
• Intrusion Detection & Prevention
• User Access Control

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# Quick Setup with Copy-Paste

## Set your username and public key
USERNAME="yourusername"
PUBLIC_KEY="ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIxxxxxx your-email@example.com"

## Create user and setup
useradd -m -G wheel $USERNAME
passwd $USERNAME
mkdir -p /home/$USERNAME/.ssh

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Upgrading to Complete AlmaLinux Installation

Step 1: Update the System

sudo dnf update -y

Step 2: Install Essential System Tools

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# Install MySQL 5.7 Community Server on AlmaLinux 10

## source: https://computingforgeeks.com/install-mysql-5-7-on-centos-rhel-linux/

## Add MySQL Community Repository
sudo vim /etc/yum.repos.d/mysql-community.repo

## Disable MySQL 8.0 Community Repository
sudo dnf config-manager --disable mysql80-community

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# send SQL files from Mac to the VM
# On Mac, set password environment variable
export MYSQL_PWD=password123
export MYSQL_USER=dev
export MYSQL_DB=database
export MYSQL_HOST=100.100.100.10
export MYSQL_SSL_MODE=DISABLED

# Run import without -p flag
for file in *.sql; do

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name: Main workflow

on:
  pull_request:
  push:
  schedule:
    - cron: 0 0 * * 5

jobs:
  plugin-test-docker: