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Mount Secure #195

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68c62b6
home
monsieuremre Jan 24, 2024
ffe8847
Create 50_security-misc.conf
monsieuremre Jan 24, 2024
7fabd37
var-log
monsieuremre Jan 24, 2024
155d491
fix
monsieuremre Jan 24, 2024
1ea3a1a
var-log
monsieuremre Jan 24, 2024
fc5e282
var-tmp
monsieuremre Jan 24, 2024
93af145
Create 50_security-misc.conf
monsieuremre Jan 24, 2024
591f8ac
tmp
monsieuremre Jan 24, 2024
1943db0
boot
monsieuremre Jan 24, 2024
a85882f
boot-efi
monsieuremre Jan 24, 2024
e2b2981
usr
monsieuremre Jan 24, 2024
acdda32
usr-share
monsieuremre Jan 24, 2024
cd163b9
api
monsieuremre Jan 24, 2024
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11 changes: 11 additions & 0 deletions etc/default/grub.d/40_secure-mount.cfg
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# tmp and api file systems
GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX systemd.mount-extra=tmpfs:/tmp:[:tmpfs[:defaults,nodev,nosuid,noexec]]"
GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX systemd.mount-extra=udev:/dev:[:devtmpfs[:defaults,nosuid,noexec]]"
GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX systemd.mount-extra=tmpfs:/dev/shm:[:tmpfs[:defaults,nodev,nosuid,noexec]]"
GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX systemd.mount-extra=tmpfs:/run:[:tmpfs[:defaults,nodev,nosuid,noexec]]"
#
#
## Also binds can be done in this manner
## But how do know for sure that we can bind for example var to itself? We can't do it if var has a dedicated partitoin on disk.
## Have to find a way to make sure there is no partition before binding anything
## Possible to use if else in kernel command line?
2 changes: 2 additions & 0 deletions etc/systemd/system/boot-efi.mount.d/50_security-misc.conf
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[Mount]
Options=nodev,nosuid,noexec
2 changes: 2 additions & 0 deletions etc/systemd/system/boot.mount.d/50_security-misc.conf
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[Mount]
Options=nodev,nosuid,noexec
2 changes: 2 additions & 0 deletions etc/systemd/system/home.mount.d/50_security-misc.conf
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[Mount]
Options=nodev,nosuid
2 changes: 2 additions & 0 deletions etc/systemd/system/tmp.mount.d/50_security-misc.conf
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[Mount]
Options=nodev,nosuid,noexec
2 changes: 2 additions & 0 deletions etc/systemd/system/usr-share.mount.d/50_security-misc.conf
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[Mount]
Options=nodev,nosuid
2 changes: 2 additions & 0 deletions etc/systemd/system/usr.mount.d/50_security-misc.conf
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[Mount]
Options=nodev
2 changes: 2 additions & 0 deletions etc/systemd/system/var-log-audit.mount.d/50_security-misc.conf
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[Mount]
Options=nodev,nosuid,noexec
2 changes: 2 additions & 0 deletions etc/systemd/system/var-log.mount.d/50_security-misc.conf
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[Mount]
Options=nodev,nosuid,noexec
2 changes: 2 additions & 0 deletions etc/systemd/system/var-tmp.mount.d/50_security-misc.conf
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[Mount]
Options=nodev,nosuid,noexec
2 changes: 2 additions & 0 deletions etc/systemd/system/var.mount.d/50_security-misc.conf
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[Mount]
Options=nodev,nosuid