1 # This file is part of systemd.
3 # systemd is free software; you can redistribute it and/or modify it
4 # under the terms of the GNU Lesser General Public License as published by
5 # the Free Software Foundation; either version 2.1 of the License, or
6 # (at your option) any later version.
8 # See sysctl.d(5) and core(5) for for details.
10 # System Request functionality of the kernel (SYNC)
13 # Append the PID to the core filename
14 kernel.core_uses_pid = 1
16 # Source route verification
17 net.ipv4.conf.default.rp_filter = 1
18 net.ipv4.conf.all.rp_filter = 1
20 # Do not accept source routing
21 net.ipv4.conf.default.accept_source_route = 0
22 net.ipv4.conf.all.accept_source_route = 0
24 # Promote secondary addresses when the primary address is removed
25 net.ipv4.conf.default.promote_secondaries = 1
26 net.ipv4.conf.all.promote_secondaries = 1
28 # Fair Queue CoDel packet scheduler to fight bufferbloat
29 net.core.default_qdisc = fq_codel
31 # Enable hard and soft link protection
32 fs.protected_hardlinks = 1
33 fs.protected_symlinks = 1