How to install the Nginx web server on Linux

Install Nginx using the system's package manager: on Ubuntu/Debian, use sudo apt install nginx; on CentOS/RHEL, use sudo dnf install nginx or sudo yum install nginx with EPEL if needed. 2. Start and enable the service with sudo systemctl start nginx and sudo systemctl enable nginx, then check status to confirm it's running. 3. Allow HTTP and HTTPS traffic through the firewall: use sudo ufw allow 'Nginx Full' on Ubuntu or sudo firewall-cmd --permanent --add-service=http --add-service=https followed by reload on CentOS/RHEL. 4. Verify installation by accessing the server’s IP in a browser to see the Nginx welcome page; configuration files are in /etc/nginx/ and web content is served from /var/www/html.

To install the Nginx web server on Linux, follow steps based on your distribution. The process is straightforward and involves using your system's package manager to install Nginx, start the service, and enable it to run at boot.

Install Nginx on Ubuntu or Debian

Nginx is available in the default repositories of Ubuntu and Debian. Use the APT package manager to install it.

• Update the package index: sudo apt update
• Install Nginx: sudo apt install nginx
• Verify installation by checking the version: nginx -v

Install Nginx on CentOS or RHEL

On CentOS or Red Hat Enterprise Linux, use the YUM or DNF package manager.

• For CentOS 8/RHEL 8 and newer: sudo dnf install nginx
• For older versions: sudo yum install nginx
• If Nginx isn't in the default repo, add the EPEL repository first: sudo dnf install epel-release

Start and Enable Nginx Service

After installation, start the Nginx service and configure it to launch at boot.

• Start Nginx: sudo systemctl start nginx
• Enable auto-start on boot: sudo systemctl enable nginx
• Check status to confirm it’s running: sudo systemctl status nginx

Configure Firewall Access

If a firewall is active, allow HTTP (port 80) and HTTPS (port 443) traffic.

• On systems using ufw (Ubuntu): sudo ufw allow 'Nginx Full'
• On systems using firewalld (CentOS/RHEL): sudo firewall-cmd --permanent --add-service=http sudo firewall-cmd --permanent --add-service=https sudo firewall-cmd --reload

After completing these steps, open a web browser and visit your server’s IP address. You should see the Nginx welcome page, confirming the server is working.

Configuration files are usually located in /etc/nginx/, with the main file at /etc/nginx/nginx.conf. Website content is typically served from /var/www/html.

Basically just install, start, and allow network access — then verify it's working.

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