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Initial Server Security Hardening
Initial Server Security Hardening These steps are recommended for every new server. 1. Create a Non-Root User adduser deploy usermod -aG sudo deploy 2. Set Up SSH Key Authentication On your local machine: ssh-keygen -t ed25519 -C "[email protected]" ssh-copy-id deploy@YOUR_SERVER_IP 3. Disable Root…
How to Set Up UFW Firewall (Ubuntu/Debian)
How to Set Up UFW Firewall (Ubuntu/Debian) Basic Setup # Check current status ufw status # Set defaults ufw default deny incoming ufw default allow outgoing # Allow SSH FIRST (critical!) ufw allow 22/tcp # Enable the firewall ufw enable Common Rules # Web server ufw allow 80/tcp ufw allow 443/tcp #…
How to Set Up firewalld (CentOS/AlmaLinux)
How to Set Up firewalld (CentOS/AlmaLinux) # Check status firewall-cmd --state # Allow common services firewall-cmd --permanent --add-service=ssh firewall-cmd --permanent --add-service=http firewall-cmd --permanent --add-service=https # Allow a specific port firewall-cmd --permanent…