How to Set Up Nginx Server Blocks on AlmaLinux 9

To set up multiple websites on an Nginx server using AlmaLinux 9, follow these steps:

Step 1 : Check if Nginx is Installed

First, ensure that Nginx is installed on your system:

sudo dnf install nginx -y

Once installed, start and enable Nginx:

sudo systemctl start nginx  
sudo systemctl enable nginx

Step 2 : Create a Directory for Your Website

Create a directory to store your website's files:

sudo mkdir -p /var/www/html/example.com

Then, create a simple index.html file:

echo "<h1>Welcome to example.com</h1>" | sudo tee /var/www/html/example.com/index.html

Step 3 : Set Proper Permissions

Set the correct ownership and permissions for the directory:

sudo chown -R nginx:nginx /var/www/html/example.com
sudo chmod -R 755 /var/www/html/example.com

Step 4 : Create an Nginx Configuration File

Create a new configuration file for example.com:

sudo nano /etc/nginx/conf.d/example.com.conf

Add the following content:

server {
    listen 80;

    server_name example.com www.example.com;

    root /var/www/html/example.com;
    index index.html;

    location / {
        try_files $uri $uri/ =404;
    }
}

Save and exit the file.

Step 5 : Configure SELinux (if enabled)

If SELinux is enabled, adjust the context for the web directory:

sudo semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/html/example.com(/.*)?"
sudo restorecon -R /var/www/html/example.com

Step 6 : Test the Configuration

Before applying the changes, test the Nginx configuration:

sudo nginx -t

If there are no errors, proceed to the next step.

Step 7 : Restart Nginx

Restart Nginx to apply the new configuration:

sudo systemctl restart nginx

Step 8 : Access Your Website

Open a web browser and visit http://example.com. If everything is set up correctly, you should see your test page.

Congratulations! You have successfully set up an Nginx server block on AlmaLinux 9.