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DDoS attacks targeting Greek businesses and EU infrastructure have become increasingly common, ranging from volumetric layer 3/4 floods that saturate bandwidth, to sophisticated layer 7 application attacks that exhaust web server resources. Cloudflare’s anycast network — which absorbs attacks across 300+ PoPs worldwide rather than routing all traffic to a single scrubbing centre — means that Hellenic Technologies clients benefit from DDoS mitigation that activates within seconds, without manual intervention. For layer 3 and 4 protection, Cloudflare’s network-level DDoS mitigation handles SYN floods, UDP amplification attacks (DNS, NTP, SSDP reflection), ICMP floods, and other volumetric attacks automatically. Cloudflare Magic Transit extends this protection to entire IP prefixes via BGP announcement, protecting not just web traffic but any IP-based service. We configure Magic Transit for clients with significant non-HTTP infrastructure or dedicated IP blocks. Layer 7 DDoS protection — attacks that mimic legitimate HTTP requests — requires more sophisticated responses. We tune Cloudflare’s HTTP DDoS Attack Protection managed ruleset sensitivity per client based on their normal traffic patterns, implement Under Attack Mode as a rapid response tool, and use Waiting Room to queue excess traffic during peak attacks or flash crowd events rather than dropping connections. DDoS protection services we configure:
  • Cloudflare DDoS managed ruleset tuning for L3/L4 and L7 attack vectors
  • HTTP DDoS Attack Protection sensitivity configuration per zone
  • Magic Transit BGP setup for full IP prefix protection
  • Under Attack Mode automation triggered by monitoring thresholds
  • Cloudflare Waiting Room for traffic shaping during attack events
  • IP reputation blocklists and ASN-level blocking rules
  • Attack response runbooks and escalation procedures
  • Post-attack analysis reports with traffic forensics
  • Alerting integration for attack start/end events via PagerDuty or Slack