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  • #11391

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Opened Apr 29, 2016 by intrigeri@intrigeriMaintainer

Reduce attack surface with firewall hardening

Originally created by @intrigeri on #11391 (Redmine)

Following up on “[Tails-dev] Reducing attack surface of kernel and tightening firewall/sysctls”:

  • Disable netfilter’s nf_conntrack_helper
  • don’t accept RELATED packets
  • Enable Packetization Layer Path MTU Discovery for IPv4 (needed once we drop RELATED packets, and may fix unrelated problems)

Feature Branch: feature/11391-firewall-hardening

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Tails_2.4 (Past due)
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Reference: tails/tails#11391