Adminer is a full-featured database management tool written in PHP. It allows you to manage databases, tables, and data easily through a web interface. In this guide, we will walk through the steps to install Adminer on AlmaLinux 8 to manage MySQL databases.

Step 1: Update Your System

Start by ensuring your system is up to date:

sudo dnf update

Step 2: Install Required Packages

Make sure you have PHP and necessary extensions installed:

sudo dnf install -y php php-mysqlnd php-mbstring

Step 3: Download Adminer

Download the latest version of Adminer from the official website:

wget "https://www.adminer.org/latest.php" -O /var/www/html/adminer.php

Step 4: Configure Nginx for Adminer

If you haven't installed Nginx yet, you can do so with the following command:

sudo dnf install -y nginx

Next, create a new Nginx configuration file for Adminer:

sudo nano /etc/nginx/conf.d/adminer.conf

Add the following configuration:

server {
        listen 80;
        server_name your_domain_or_ip;

        location / {
            root /var/www/html;
            index adminer.php;
        }

        location ~ \.php$ {
            include fastcgi_params;
            fastcgi_pass unix:/var/run/php-fpm/www.sock;
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        }
    }

Replace your_domain_or_ip with your actual domain name or IP address.

Step 5: Start Nginx

Start the Nginx service and enable it to run at startup:

sudo systemctl start nginx
sudo systemctl enable nginx

Step 6: Access Adminer

You can now access Adminer by navigating to:

http://your_domain_or_ip/adminer.php

Log in using your MySQL database credentials.

Step 7: Secure Adminer (Optional)

For security purposes, it’s a good practice to restrict access to Adminer. You can do this by enabling basic authentication or restricting access by IP address. Here's an example of how to restrict access by IP address:

location / {
        allow your_ip_address;
        deny all;
    }

Replace your_ip_address with your actual IP address.

Conclusion

You have successfully installed Adminer on AlmaLinux 8 to manage your MySQL databases. This lightweight tool provides an easy way to interact with your databases through a web interface.

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