Notes from the field

Writing

Long-form thinking on cyber defence, detection, and resilience — from Slackware-era honeypots through to AI-driven SOC analytics.

Showing posts tagged bcp 38 — 1 result.

Egress filtering: the cheap defence we keep not implementing

21 June 1999

If every operator on the internet did one cheap thing — filter outgoing packets to ensure source addresses are correct — most distributed attack tools would not work. We do not do this. The reasons are interesting and mostly not technical.

bcp 38 ddos egress filtering firewalling