🛡️ Network Security

OpenAI API Gateway Firewall

Implement robust firewall rules and network security policies to protect your OpenAI API Gateway from unauthorized access, DDoS attacks, and malicious traffic.

99.9%

Threat Blocked

<1ms

Response Time

24/7

Monitoring

Essential Firewall Rules

🚫

IP Whitelisting

Restrict API access to known IP addresses and ranges only.

Office IP ranges
Cloud provider IPs
VPN endpoints
Partner networks

⚡

Rate Limiting

Prevent abuse by limiting requests per IP and per API key.

Requests per minute
Requests per hour
Burst protection
Progressive penalties

🔍

WAF Rules

Web Application Firewall rules to block common attack patterns.

SQL injection protection
XSS prevention
CSRF tokens
Bot detection

Network Security Zones

🌐

DMZ (Demilitarized Zone)

Public-facing layer where external requests first arrive. Minimal trust, maximum scrutiny.

Allow: HTTPS (443) Deny: All other ports Rate limit: 100/min

⚙️

Application Zone

API gateway and application servers. Authenticated access only.

Allow: Internal APIs Require: API Key Log: All requests

🗄️

Data Zone

Database and sensitive storage. Strictest access controls.

Allow: App servers only Deny: Direct access Encrypt: All data

Firewall Configuration

Rule	Source	Destination	Port	Action
HTTPS Inbound	Any	API Gateway	`443`	ALLOW
HTTP Redirect	Any	API Gateway	`80`	ALLOW
SSH Admin	Admin IPs	Servers	`22`	ALLOW
Database	App Servers	Database	`5432`	ALLOW
Block All	Any	Any	`*`	DENY

Security Best Practices

✓

Default Deny

Start with deny-all policy and explicitly allow only required traffic.

✓

Least Privilege

Grant minimum necessary permissions to each service and user.

✓

Regular Audits

Review firewall rules monthly and remove unused entries.

✓

Log Everything

Enable comprehensive logging for security analysis and compliance.

✓

Automate Updates

Use infrastructure as code to manage and version firewall rules.

✓

DDoS Protection

Implement rate limiting and use cloud DDoS protection services.