mirror of
https://github.com/tommytran732/QubesOS-Scripts
synced 2024-11-23 18:11:35 -05:00
66 lines
2.3 KiB
Bash
66 lines
2.3 KiB
Bash
#!/bin/sh
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# Copyright (C) 2022-2024 Thien Tran
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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set -eu -o pipefail
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unpriv(){
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sudo -u nobody "${@}"
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}
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download() {
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unpriv curl -s --proxy http://127.0.0.1:8082 "${1}" | sudo tee "${2}" > /dev/null
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}
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# Compliance
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systemctl mask debug-shell.service
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systemctl mask kdump.service
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# Setting umask to 077
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umask 077
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sudo sed -i 's/^UMASK.*/UMASK 077/g' /etc/login.defs
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sudo sed -i 's/^HOME_MODE/#HOME_MODE/g' /etc/login.defs
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sudo sed -i 's/umask 022/umask 077/g' /etc/bashrc
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# Make home directory private
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sudo chmod 700 /home/*
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# Disable timesyncd
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systemctl disable --now systemd-timesyncd
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systemctl mask systemd-timesyncd
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# Harden SSH
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download https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/ssh_config.d/10-custom.conf /etc/ssh/ssh_config.d/10-custom.conf
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chmod 644 /etc/ssh/ssh_config.d/10-custom.conf
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# Security kernel settings
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download https://raw.githubusercontent.com/secureblue/secureblue/live/files/system/usr/etc/modprobe.d/blacklist.conf /etc/modprobe.d/workstation-blacklist.conf
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sudo chmod 644 /etc/modprobe.d/workstation-blacklist.conf
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download https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysctl.d/99-workstation.conf /etc/sysctl.d/99-workstation.conf
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# This doesn't exist (jackwagon)
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# sudo chmod 644 /etc/sysctl.d/30_security-misc_kexec-disable.conf
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# Dracut doesn't seem to work - need to investigate
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# dracut -f
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sudo sysctl -p
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# Setup ZRAM
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download https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/zram-generator.conf /etc/systemd/zram-generator.conf
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# Setup hardened_malloc
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sudo https_proxy=https://127.0.0.1:8082 dnf copr enable secureblue/hardened_malloc -y
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sudo dnf install -y hardened_malloc
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echo 'libhardened_malloc.so' | sudo tee /etc/ld.so.preload
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sudo chmod 644 /etc/ld.so.preload
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