Coolify setup on Old Laptop

Install Coolify on a Local Ubuntu (or other) old laptop/server

Installation

Install as root with sudo su. Use curl -fsSL https://cdn.coollabs.io/coolify/install.sh | sudo bash to start install

Serve your apps on the internet securely using cloudflare tunnels

User creation

Add a new user that has root access

sudo adduser myadmin
sudo usermod -aG sudo myadmin

Secure the VPS/ Laptop

Disable pwd auth

Edit /etc/ssh/sshd_config

sudo nano /etc/ssh/sshd_config

Set the following flags on the file

• PermitRootLogin prohibit-password
• PasswordAuthentication no
• PermitEmptyPasswords no

Firewall Hardening

optional since it caused some issues when I first set it up

sudo ufw reset
sudo ufw default deny incoming
sudo ufw default allow outgoing

Allow only SSH, HTTP, HTTPS

sudo ufw allow OpenSSH
sudo ufw allow 80,443/tcp

Optional: limit SSH brute force

sudo ufw limit OpenSSH

Save changes

sudo ufw enable
sudo ufw status verbose

Sample firewall after changes

This is how it would look like Firewall is active and enabled on system startup Status: active Logging: on (low) Default: deny (incoming), allow (outgoing), deny (routed) New profiles: skip

To Action From

• 22/tcp (OpenSSH) LIMIT IN Anywhere
• 80,443/tcp ALLOW IN Anywhere
• 22/tcp (OpenSSH (v6)) LIMIT IN Anywhere (v6)
• 80,443/tcp (v6) ALLOW IN Anywhere (v6)