MaGe Linux Operations

Jun 23, 2014 · Information Security

How Linux’s SYNPROXY Shields Against SYN Flood DoS Attacks

The article explains how the Linux kernel’s SYNPROXY feature, introduced in version 3.13, effectively mitigates SYN flood DoS attacks by acting as a gateway, validating handshake cookies, and dramatically reducing kernel soft‑IRQ load during testing on Debian and SLES‑12.