WAF, ADC & DDoS Protection Advisor

Availability is security. If your application goes down — whether from traffic spikes, server failures, or attacks — the business stops. ADCs/Load Balancers distribute traffic intelligently, ensure high availability, and provide SSL offloading to reduce server load. In a world of microservices and multi-cloud, load balancing is not optional.

ADCs go beyond basic load balancing — they provide SSL/TLS termination, connection multiplexing, caching, compression, health monitoring, and application acceleration. Modern ADCs integrate with WAF and DDoS capabilities. Options: Hardware ADCs (F5 BIG-IP, Citrix ADC/NetScaler) vs Software ADCs (HAProxy, NGINX Plus, Envoy) vs Cloud-native (AWS ALB/NLB, Azure Load Balancer, GCP Cloud Load Balancing). Key criteria: throughput, concurrent connections, SSL TPS, health check sophistication, automation/API support.

Design for N+1 redundancy. Deploy ADCs at every tier — edge (internet-facing), internal (between services), and global (DNS-based GSLB for multi-site). SSL offloading at ADC reduces backend server load by 30–50%. For Kubernetes environments, consider ingress controllers (NGINX Ingress, Traefik, Istio). Contact Raksha for enterprise pricing.

DDoS attacks are the digital equivalent of blocking the entrance to your office with a mob. They can take down websites, APIs, and entire networks in minutes. Volumetric attacks now routinely exceed 1 Tbps. Application-layer (L7) attacks are harder to detect because they look like legitimate traffic. Without DDoS protection, threat actors can easily launch attacks that cripple any company.

DDoS protection operates at multiple layers — network layer (L3/L4) scrubbing for volumetric floods, and application layer (L7) filtering for sophisticated attacks. Solutions range from always-on cloud scrubbing (Cloudflare, Akamai, AWS Shield) to on-premise detection + cloud scrubbing hybrid (Radware, Imperva) to ISP-level clean pipes. Key criteria: scrubbing capacity (Tbps), time to mitigate, L7 detection accuracy, always-on vs on-demand, SLA guarantees.

Deploy always-on cloud DDoS protection for all internet-facing assets. Use DNS-based routing (BGP or DNS) to send traffic through scrubbing centers. Combine with WAF for L7 protection. For critical applications, implement rate limiting, geo-blocking, and challenge-response (CAPTCHA). Test quarterly with DDoS simulation tools. Contact Raksha for pricing based on bandwidth and attack capacity.