How to Install and Manage Apache2 on a Linux System

For Ubuntu/Debian:

 

1. Update the package list:

sudo apt update
    

2. Install Apache2:

sudo apt install apache2
    

For CentOS/RHEL:

1. Install Apache (called httpd in CentOS/RHEL):

sudo yum install httpd
    

For Fedora:

1. Install Apache:

sudo dnf install httpd
    

Common systemctl Commands for Apache:

1. Start the Apache service:

sudo systemctl start apache2  # For Ubuntu/Debian
sudo systemctl start httpd    # For CentOS/RHEL and Fedora
    

2. Enable Apache to start on boot:

sudo systemctl enable apache2  # For Ubuntu/Debian
sudo systemctl enable httpd    # For CentOS/RHEL and Fedora
    

3. Check the status of the Apache service:

sudo systemctl status apache2  # For Ubuntu/Debian
sudo systemctl status httpd    # For CentOS/RHEL and Fedora
    

4. Restart the Apache service:

sudo systemctl restart apache2  # For Ubuntu/Debian
sudo systemctl restart httpd    # For CentOS/RHEL and Fedora
    

5. Stop the Apache service:

sudo systemctl stop apache2  # For Ubuntu/Debian
sudo systemctl stop httpd    # For CentOS/RHEL and Fedora
    

6. Reload Apache configuration without restarting:

sudo systemctl reload apache2  # For Ubuntu/Debian
sudo systemctl reload httpd    # For CentOS/RHEL and Fedora