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File Security for NGINX Ingress Controller: Now Leveled Up with HTTP/2 

by Thao Duong, Senior Product Marketing Manager
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OPSWAT MetaDefender ICAP Server offers the only certified NGINX Dynamic Module in file security for NGINX Plus and NGINX Open Source. Our most recent updates in the NGINX Module v1.3.0 enable the hypertext transfer protocol version 2 (HTTP/2) configuration to accelerate data transfer speeds, optimize resource utilization, and ensure robust security measures for scanned files, particularly under heavy data loads.  

The Role of File Scanning and Ingress Controllers in Application Security 

Cloud-native architectures provide flexibility and scalability, but also introduce security challenges. Deployed applications interact with distributed systems, increasing the attack surface and necessitating robust security measures to protect sensitive data.   

NGINX is an ingress controller that manages inbound traffic to Kubernetes clusters, ensuring efficient and secure web traffic management by handling routing, load balancing, SSL termination, and access control.  

Malicious files can infiltrate cloud-native apps, evading network perimeters. Scanning and intercepting incoming files serves as a proactive security measure against a range of threats, including malware, zero-day attacks, data breaches, and other types of vulnerabilities. This shared responsibilities approach ensures that malicious content is detected and blocked or neutralized before it can infiltrate the organizational network and applications.   

HTTP/2: Accelerated and Secure Data Transmission 

The NGINX Module 1.3.0’s HTTP/2 update optimizes the communication between MetaDefender ICAP Server and NGINX ingress controllers. Switching to HTTP/2 can facilitate faster file scanning, reduced latency, and improved application performance.   

With improvements to resource usage, data transfer efficiency and overall security, this protocol upgrade is a recommended enhancement for all NGINX module deployments.  

Diagram illustrating the connection between Kubernetes, NGINX ingress controller, and an ICAP server

Strengthen Application Security with NGINX and MetaDefender ICAP Server

NGINX serves as a versatile technology for managing application delivery, including roles like reverse proxy, load balancer, web server, and API gateway. MetaDefender ICAP Server enhances NGINX's capabilities with multiple layers of defenses, including Multiscanning, Deep CDR (Content Disarm and Reconstruction), emulation-based sandbox, and Proactive DLP (Data Loss Prevention).   

Diagram showing the core features of NGINX, such as app protection and active health checks
  • Protects apps from OWASP Top 10 and Layer 7
DoS Attacks 
  • An all-in-one reverse proxy, load balancer, API gateway, web server, and content cache
  • Reduces security breaches and limits exposure to malicious users with authentication, TLS support, and connection limiting
  • Active health checks and high availability 
Diagram highlighting the features of MetaDefender ICAP server, including malware detection and data loss prevention
  • Plug-and-play solution that protects organizations at the network perimeter from malicious
file-based attacks  
  • Detect nearly 100% of malware using simultaneous analysis with 30+ leading anti-virus engines 
  • Remove zero-day threats by disarming all potentially malicious content in nested archives and other complex file types
  • Dynamically detect and analyze 
malicious behaviors with emulation-based sandbox 
  • Prevent data loss and automatically redact identified sensitive information 

With this multi-layered defense solution, organizations can enhance their security in their application stack to protect against file-borne malware, zero-day attacks, sensitive data leaks, and vulnerabilities in web traffic.  

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