Your FortiGate firewall is a critical piece of your organization’s cybersecurity strategy. It stands between your network and potential cyber threats, blocking unauthorized access while enabling safe communication. But just installing a firewall isn’t enough—you need to configure and maintain it properly. Here’s how to secure your FortiGate firewall like a pro.

1. Keep Your Firewall Updated

Cyber threats evolve constantly, and so should your firewall. Regularly updating your FortiGate firmware ensures you have the latest features and patches against vulnerabilities. Use Fortinet’s upgrade tool to stay ahead of emerging threats.

2. Lock Down Administrative Access

Administrative access is a prime target for attackers. Strengthen it by:

  • Setting Strong, Unique Passwords: Use long, complex passwords and change them frequently.
  • Enabling Multi-Factor Authentication (MFA): Add another security layer.
  • Restricting Access by IP Address: Allow logins only from trusted IP addresses.

3. Build a Strong Network Defense

Firewalls thrive on well-thought-out network configurations. Focus on:

  • DNS Filtering: Block malicious domains by using trusted DNS servers.
  • Network Segmentation: Use VLANs to isolate sensitive systems and reduce lateral movement.
  • Traffic Control: Limit intra-zone traffic and define clear communication rules.

4. Use Advanced Security Policies

Get the most out of your FortiGate by enabling its robust security features:

  • Intrusion Prevention System (IPS): Detect and block malicious activity in real time.
  • Web & Application Filtering: Control which websites and apps are accessible to reduce risk.
  • Antivirus Scanning: Block malware and prevent data breaches.

5. Secure Remote Access

Remote work is here to stay, but it shouldn’t compromise your security:

  • Harden Your SSL VPN: Use strong encryption protocols and trusted certificates.
  • Limit Access: Allow only approved users and services through your VPN.
  • Monitor Connections: Regularly review VPN logs for signs of suspicious activity.

6. Centralize Logging and Monitoring

Seeing the big picture is key to a strong security posture:

  • Enable Centralized Logging: Use FortiAnalyzer or another SIEM tool for complete visibility.
  • Set Real-Time Alerts: Configure notifications for critical events like failed logins or unusual activity.

7. Plan for the Unexpected

Downtime and breaches can happen—be ready:

  • Automate Backups: Schedule regular configuration backups and store them securely.
  • Test Restorations: Ensure your backups work by testing recovery procedures periodically.

8. Go Beyond the Basics

Security is more than just firewalls. Our Comprehensive Firewall Audit Checklist covers advanced practices like penetration testing, vulnerability assessments, and custom rule optimization. Want the full guide? We’ve got you covered.

Download the Full FortiGate Security Hardening Checklist

Your network security should be proactive, not reactive. Take action today and let BALANCED+ help fortify your defenses against evolving cyber threats.