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#Tech Tips# 5 Common Sangfor NGAF Firewall Misconfigurations That Can Cause Security Risks
  

Muhammad Abid Lv3Posted 2026-Sep-07 12:43

A powerful firewall can provide strong protection—but incorrect configuration can still create security gaps.

In day-to-day network operations, some configuration issues are easy to overlook. Here are 5 common Sangfor NGAF misconfigurations that every firewall administrator should review.

1. Overly Broad Security Policies
Policies such as Any → Any may allow more traffic than actually required.

- Best Practice:
Define specific source, destination, service, and application requirements. Follow the Principle of Least Privilege.

2. Unused or Outdated Firewall Policies
Temporary rules created for testing or troubleshooting are sometimes left enabled even after they are no longer needed.

- Best Practice:
Regularly review your policy list and disable or remove unnecessary rules.

3. Incorrect NAT Configuration
Improper Source NAT or Destination NAT configuration can cause connectivity problems or unintentionally expose internal services.

- Best Practice:
Review NAT policies regularly and ensure that only the required internal services are published externally.

4. Insufficient Logging
Without appropriate logs, identifying the cause of suspicious traffic or connectivity problems can become difficult.

- Best Practice:
Enable appropriate logging for critical security and access policies and review important events regularly.

5. Unrestricted Administrative Access
Allowing firewall management access from unnecessary networks increases the attack surface of the NGAF itself.

- Best Practice:
Restrict administrative access to trusted management networks and use secure management protocols.

Key Takeaway

Firewall security is not a “configure once and forget” task.

Regularly reviewing security policies, NAT rules, logging, and administrative access can help reduce security risks and improve overall network security.

Community Question

Which NGAF configuration mistake have you encountered most often in real-world environments?

Share your experience and best practices with the community.

#Sangfor #NGAF #Firewall #CyberSecurity #NetworkSecurity #TechTips #FirewallBestPractices #NetworkAdministrator #InformationSecurity

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Humayun Ahmed Lv4Posted 2026-Sep-07 13:40
  
Thanks to share!