Editing File: /usr/lib/systemd/portable/profile/default/service.conf

# The "default" security profile for services, i.e. a number of useful restrictions

[Service]
MountAPIVFS=yes
TemporaryFileSystem=/run
BindReadOnlyPaths=/run/systemd/notify
BindReadOnlyPaths=/dev/log /run/systemd/journal/socket /run/systemd/journal/stdout
BindReadOnlyPaths=/etc/machine-id
BindReadOnlyPaths=/etc/resolv.conf
BindReadOnlyPaths=/run/dbus/system_bus_socket
DynamicUser=yes
RemoveIPC=yes
CapabilityBoundingSet=CAP_CHOWN CAP_DAC_OVERRIDE CAP_DAC_READ_SEARCH CAP_FOWNER \
	CAP_FSETID CAP_IPC_LOCK CAP_IPC_OWNER CAP_KILL CAP_MKNOD CAP_NET_ADMIN \
	CAP_NET_BIND_SERVICE CAP_NET_BROADCAST CAP_SETGID CAP_SETPCAP \
	CAP_SETUID CAP_SYS_ADMIN CAP_SYS_CHROOT CAP_SYS_NICE CAP_SYS_RESOURCE
PrivateTmp=yes
PrivateDevices=yes
PrivateUsers=yes
ProtectSystem=strict
ProtectHome=yes
ProtectKernelTunables=yes
ProtectKernelModules=yes
ProtectControlGroups=yes
RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6
LockPersonality=yes
MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native

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