Security Guide

Learn how to secure your VPS and protect your applications from common security threats.

Initial Security Setup

Essential Steps

  1. 1. Update system packages
  2. 2. Configure SSH access
  3. 3. Set up firewall rules
  4. 4. Create non-root user
  5. 5. Disable root login
  6. 6. Enable automatic security updates

SSH Configuration

# /etc/ssh/sshd_config
PermitRootLogin no
PasswordAuthentication no
PubkeyAuthentication yes
Protocol 2

Firewall Configuration

Basic UFW Rules

# Enable UFW
sudo ufw enable

# Allow SSH
sudo ufw allow ssh

# Allow HTTP/HTTPS
sudo ufw allow http
sudo ufw allow https

Advanced Security

System Hardening

  • • Disable unused services
  • • Implement fail2ban
  • • Regular security audits
  • • Monitor system logs

Application Security

  • • Use HTTPS everywhere
  • • Keep dependencies updated
  • • Implement WAF
  • • Regular backups

Monitoring & Maintenance

Security Monitoring

Tools

  • • Fail2ban
  • • RKHunter
  • • ClamAV
  • • Logwatch

Best Practices

  • • Regular log review
  • • Security updates
  • • Vulnerability scanning
  • • Incident response plan

Need Help?

Our security team is available to help with security configuration and best practices.