Installing Caddy
This guide will walk you through the steps to install Caddy on both Debian-based and RHEL-based systems.
Supported Distributions
| Distribution | Supported |
|---|---|
| Debian 12 | ✅ |
| Debian 11 | ✅ |
| Ubuntu 22.04 | ✅ |
| Ubuntu 24.04 | ✅ |
| RHEL 9 | ✅ |
| RHEL 8 | ✅ |
Steps to Install Caddy
1. Update the Package Index
Debian-based Systems:
Run the following command to ensure your package index is up to date:
sudo apt update
RHEL-based Systems:
Update the package index using dnf:
sudo dnf makecache
2. Install Caddy
Debian-based Systems:
Install Caddy using the official repository:
sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-stable.list
sudo apt update
sudo apt install caddy -y
RHEL-based Systems:
Install Caddy using the official repository:
sudo dnf install 'dnf-command(config-manager)' -y
sudo dnf config-manager --add-repo https://dl.cloudsmith.io/public/caddy/stable/rpm.repo
sudo dnf install caddy -y
3. Start and Enable Caddy
Debian-based Systems:
Ensure Caddy starts automatically on boot and start the service:
sudo systemctl enable caddy
sudo systemctl start caddy
RHEL-based Systems:
Similarly, enable and start the Caddy service:
sudo systemctl enable caddy
sudo systemctl start caddy
4. Verify Installation
Debian-based Systems:
Check if Caddy is running:
sudo systemctl status caddy
RHEL-based Systems:
Verify the status of the Caddy service:
sudo systemctl status caddy
For both systems, you can also verify the installation by opening a web browser and navigating to http://your_server_ip. You should see the default Caddy welcome page.
5. Allow HTTP and HTTPS Traffic
Debian-based Systems:
Update your firewall rules to allow HTTP and HTTPS traffic:
sudo ufw allow 'Caddy'
RHEL-based Systems:
Use firewalld to allow HTTP and HTTPS traffic:
sudo firewall-cmd --permanent --add-service=http
sudo firewall-cmd --permanent --add-service=https
sudo firewall-cmd --reload
Conclusion
You have successfully installed Caddy on your Debian-based or RHEL-based system. You can now proceed to configure it for your specific needs.