sysctl.d: switch net.ipv4.conf.all.rp_filter from 1 to 2

[thirdparty/systemd.git] / sysctl.d / 50-default.conf

diff --git a/sysctl.d/50-default.conf b/sysctl.d/50-default.conf
index 8d202a63e7a9eda74039d0b5a85fa974e2c572f2..b0645f33e7fea5d871af3c39339eabbb231d44be 100644 (file)
--- a/sysctl.d/50-default.conf
+++ b/sysctl.d/50-default.conf
@@ -5,16 +5,33 @@
 #  the Free Software Foundation; either version 2.1 of the License, or
 #  (at your option) any later version.
 
-# See sysctl.d(5) and core(5) for for details.
+# See sysctl.d(5) and core(5) for documentation.
+
+# To override settings in this file, create a local file in /etc
+# (e.g. /etc/sysctl.d/90-override.conf), and put any assignments
+# there.
+
+# System Request functionality of the kernel (SYNC)
+#
+# Use kernel.sysrq = 1 to allow all keys.
+# See https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html for a list
+# of values and keys.
+kernel.sysrq = 16
 
 # Append the PID to the core filename
 kernel.core_uses_pid = 1
 
 # Source route verification
-net.ipv4.conf.default.rp_filter = 1
+net.ipv4.conf.all.rp_filter = 2
 
 # Do not accept source routing
-net.ipv4.conf.default.accept_source_route = 0
+net.ipv4.conf.all.accept_source_route = 0
+
+# Promote secondary addresses when the primary address is removed
+net.ipv4.conf.all.promote_secondaries = 1
+
+# Fair Queue CoDel packet scheduler to fight bufferbloat
+net.core.default_qdisc = fq_codel
 
 # Enable hard and soft link protection
 fs.protected_hardlinks = 1