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systemd-stable/sysctl.d/50-default.conf
Peter Körner bd9bb4ca61 sysctl.d: replace URL of SysRq key documentation (#5274)
The kernel documentation page is not distribution specific and also more
likely to be up to date than the Fedora wiki page referenced previously.
2017-02-08 19:42:43 +01:00

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# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# 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 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 = 1
# 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.default.promote_secondaries = 1
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
fs.protected_symlinks = 1