0c28d51ac8
Let's make this an excercise in dogfooding: let's turn on more security features for all our long-running services. Specifically: - Turn on RestrictRealtime=yes for all of them - Turn on ProtectKernelTunables=yes and ProtectControlGroups=yes for most of them - Turn on RestrictAddressFamilies= for all of them, but different sets of address families for each Also, always order settings in the unit files, that the various sandboxing features are close together. Add a couple of missing, older settings for a numbre of unit files. Note that this change turns off AF_INET/AF_INET6 from udevd, thus effectively turning of networking from udev rule commands. Since this might break stuff (that is already broken I'd argue) this is documented in NEWS.
37 lines
1.4 KiB
SYSTEMD
37 lines
1.4 KiB
SYSTEMD
# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=Journal Service
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Documentation=man:systemd-journald.service(8) man:journald.conf(5)
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DefaultDependencies=no
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Requires=systemd-journald.socket
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After=systemd-journald.socket systemd-journald-dev-log.socket systemd-journald-audit.socket syslog.socket
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Before=sysinit.target
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[Service]
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Type=notify
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Sockets=systemd-journald.socket systemd-journald-dev-log.socket systemd-journald-audit.socket
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ExecStart=@rootlibexecdir@/systemd-journald
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Restart=always
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RestartSec=0
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NotifyAccess=all
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StandardOutput=null
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WatchdogSec=3min
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FileDescriptorStoreMax=1024
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CapabilityBoundingSet=CAP_SYS_ADMIN CAP_DAC_OVERRIDE CAP_SYS_PTRACE CAP_SYSLOG CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_CHOWN CAP_DAC_READ_SEARCH CAP_FOWNER CAP_SETUID CAP_SETGID CAP_MAC_OVERRIDE
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MemoryDenyWriteExecute=yes
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RestrictRealtime=yes
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RestrictAddressFamilies=AF_UNIX AF_NETLINK
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SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @mount @obsolete @raw-io
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# Increase the default a bit in order to allow many simultaneous
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# services being run since we keep one fd open per service. Also, when
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# flushing journal files to disk, we might need a lot of fds when many
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# journal files are combined.
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LimitNOFILE=16384
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