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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 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 http://fedoraproject.org/wiki/QA/Sysrq 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
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