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

# The "nonetwork" security profile for services, i.e. like "default" but without networking

[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=/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_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
LockPersonality=yes
MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
PrivateNetwork=yes
IPAddressDeny=any

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