From 31a3bdf53066a9818a8426cb671c345882684a35 Mon Sep 17 00:00:00 2001 From: Bertrand Jacquin Date: Thu, 28 Nov 2019 22:47:11 +0000 Subject: factory-default: add sysctl to limit ICMP packets rate --- factory-default/sys-apps/baselayout/etc/sysctl.conf | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'factory-default') diff --git a/factory-default/sys-apps/baselayout/etc/sysctl.conf b/factory-default/sys-apps/baselayout/etc/sysctl.conf index f2e5bd0d..21a5fabf 100644 --- a/factory-default/sys-apps/baselayout/etc/sysctl.conf +++ b/factory-default/sys-apps/baselayout/etc/sysctl.conf @@ -151,6 +151,10 @@ net.ipv4.icmp_echo_ignore_broadcasts = 1 # Ignore bogus responses to broadcast net.ipv4.icmp_ignore_bogus_error_responses = 1 +# Rate limit ICMP packets to 4 per second +net.ipv4.icmp_ratemask = 0xFFFF +net.ipv4.icmp_ratelimit = 25 + # Enable SYN cookies net.ipv4.tcp_syncookies = 1 -- cgit v1.2.3