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UID:pretalx-bnog-2026-SEWBLF@pretalx.balticnog.org
DTSTART;TZID=EET:20260924T163000
DTEND;TZID=EET:20260924T165500
DESCRIPTION:Volumetric DDoS protection can run on a host that terminates TC
 P connections\, on a router protecting downstream networks\, or on a scrub
 bing node receiving redirected traffic.\n\nThese deployments differ in tra
 ffic visibility: a router-based filter may see mostly attack traffic or on
 ly client-to-server traffic. There are always-on\, on-demand\, and hybrid 
 deployment models\, and modern “hit-and-run” attacks challenge these a
 rchitectures.\n\nDespite the differences in network architecture\, these v
 olumetric DDoS filtering approaches share a lot of functionality\, which c
 an be implemented in Linux eBPF.\n\neBPF programs run at commodity Linux s
 ystems with capable yet standard network adapters. These programs run clos
 e to the network adapter driver and process traffic at 100+ Gbps on commod
 ity servers.\n\nIn this talk\, we:\n\n1. consider open-source eBPF impleme
 ntations of filters for TCP SYN\, ACK and RST floods\, DNS reflection and 
 random UDP floods\, ICMP floods\n\n2. discuss how to mitigate attacks with
  spoofed source addresses\n\n3. cover deployment safety and monitoring\n\n
 4. evaluate performance of filtering eBPF programs running on an x86-64 se
 rver with 200Gps NIC.
DTSTAMP:20260920T202451Z
LOCATION:ROOM ALFA
SUMMARY:Practical Volumetric DDoS Mitigation with Linux and Open Source - A
 lexander Krizhanovsky
URL:https://pretalx.balticnog.org/bnog-2026/talk/SEWBLF/
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