mirror of
https://github.com/tommytran732/Linux-Setup-Scripts
synced 2024-11-08 19:21:33 -05:00
151 lines
6.8 KiB
Bash
151 lines
6.8 KiB
Bash
#!/bin/bash
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# Copyright (C) 2021-2024 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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#Please note that this is how I PERSONALLY setup my computer - I do some stuff such as not using anything to download GNOME extensions from extensions.gnome.org and installing the extensions as a package instead
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output(){
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echo -e '\e[36m'"$1"'\e[0m';
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}
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unpriv(){
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sudo -u nobody "$@"
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}
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# Compliance and updates
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sudo systemctl mask debug-shell.service
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sudo apt update -y
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sudo apt full-upgrade -y
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sudo apt autoremove -y
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# Make home directory private
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sudo chmod 700 /home/*
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# Setting umask to 077
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umask 077
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sudo sed -ie '/^DIR_MODE=/ s/=[0-9]*\+/=0700/' /etc/adduser.conf
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sudo sed -ie '/^UMASK\s\+/ s/022/077/' /etc/login.defs
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sudo sed -i 's/USERGROUPS_ENAB yes/USERGROUPS_ENAB no/g' /etc/login.defs
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echo 'umask 077' | sudo tee --append /etc/profile
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# Setup NTS
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sudo systemctl disable systemd-timesyncd
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sudo apt install -y curl chrony
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unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf | sudo tee /etc/chrony/chrony.conf
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sudo systemctl restart chronyd
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# Setup UFW
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#UFW Snap is strictly confined, unlike its .deb counterpart
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sudo apt purge -y ufw
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sudo snap install ufw
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sudo ufw enable
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# Harden SSH
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echo 'GSSAPIAuthentication no
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VerifyHostKeyDNS yes' | sudo tee -a /etc/ssh/ssh_config.d/10-custom.conf
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sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf
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# Kernel hardening
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unpriv curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/modprobe.d/30_security-misc.conf | sudo tee /etc/modprobe.d/30_security-misc.conf
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sudo chmod 644 /etc/modprobe.d/30_security-misc.conf
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unpriv curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/990-security-misc.conf | sudo tee /etc/sysctl.d/990-security-misc.conf
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sudo chmod 644 /etc/sysctl.d/990-security-misc.conf
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unpriv curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/30_silent-kernel-printk.conf | sudo tee /etc/sysctl.d/30_silent-kernel-printk.conf
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sudo chmod 644 /etc/sysctl.d/30_silent-kernel-printk.conf
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unpriv curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/30_security-misc_kexec-disable.conf | sudo tee /etc/sysctl.d/30_security-misc_kexec-disable.conf
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sudo chmod 644 /etc/sysctl.d/30_security-misc_kexec-disable.conf
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sudo sed -i 's/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/990-security-misc.conf
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sudo sysctl -p
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# Rebuild initramfs
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sudo update-initramfs -u
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# Systemd Hardening
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sudo mkdir -p /etc/systemd/system/NetworkManager.service.d
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unpriv curl https://gitlab.com/divested/brace/-/raw/master/brace/usr/lib/systemd/system/NetworkManager.service.d/99-brace.conf | sudo tee /etc/systemd/system/NetworkManager.service.d/99-brace.conf
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sudo mkdir -p /etc/systemd/system/irqbalance.service.d
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unpriv curl https://gitlab.com/divested/brace/-/raw/master/brace/usr/lib/systemd/system/irqbalance.service.d/99-brace.conf | sudo tee /etc/systemd/system/irqbalance.service.d/99-brace.conf
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# Setup dconf
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/dconf/db/local.d/automount-disable | sudo tee /etc/dconf/db/local.d/automount-disable
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/dconf/db/local.d/locks/automount-disable | sudo tee /etc/dconf/db/local.d/locks/automount-disable
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/dconf/db/local.d/apport-disable | sudo tee /etc/dconf/db/local.d/apport-disable
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/dconf/db/local.d/locks/apport-disable | sudo tee /etc/dconf/db/local.d/locks/apport-disable
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dconf/db/local.d/prefer-dark | sudo tee /etc/dconf/db/local.d/prefer-dark
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dconf/db/local.d/button-layout | sudo tee /etc/dconf/db/local.d/button-layout
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dconf/db/local.d/touchpad | sudo tee /etc/dconf/db/local.d/touchpad
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sudo chmod 644 /etc/dconf/db/local.d/*
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sudo dconf update
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ubuntu-report -f send no
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sudo systemctl stop apport.service
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sudo systemctl disable apport.service
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sudo systemctl mask apport.service
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sudo systemctl stop whoopsie.service
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sudo systemctl disable whoopsie.service
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sudo systemctl mask whoopsie.service
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# Update packages and firmware
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sudo apt update -y
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sudo apt full-upgrade -y
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sudo fwupdmgr get-devices
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sudo fwupdmgr refresh --force
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sudo fwupdmgr get-updates -y
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sudo fwupdmgr update -y
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# Remove unneeded packages
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sudo apt purge -y cups* eog gedit firefox* gnome-calculator gnome-characters* gnome-font-viewer gnome-logs gnome-power-manager gnome-shell-extension-prefs seahorse tcpdump whoopsie
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sudo apt autoremove -y
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sudo snap remove firefox
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# Install packages that I use
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sudo apt install -y git-core gnome-text-editor
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sudo snap install eog
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# Setup Networking
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/NetworkManager/conf.d/00-macrandomize.conf | sudo tee /etc/NetworkManager/conf.d/00-macrandomize.conf
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/NetworkManager/conf.d/01-transient-hostname.conf | sudo tee /etc/NetworkManager/conf.d/01-transient-hostname.conf
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sudo nmcli general reload conf
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sudo hostnamectl hostname 'localhost'
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sudo hostnamectl --transient hostname ''
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# Installing tuned first here because virt-what is 1 of its dependencies anyways
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sudo apt install tuned -y
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virt_type=$(virt-what)
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if [ "$virt_type" = '' ]; then
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output 'Virtualization: Bare Metal.'
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elif [ "$virt_type" = 'openvz lxc' ]; then
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output 'Virtualization: OpenVZ 7.'
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elif [ "$virt_type" = 'xen xen-hvm' ]; then
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output 'Virtualization: Xen-HVM.'
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elif [ "$virt_type" = 'xen xen-hvm aws' ]; then
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output 'Virtualization: Xen-HVM on AWS.'
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else
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output "Virtualization: $virt_type."
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fi
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# Setup tuned
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if [ "$virt_type" = '' ]; then
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# Don't know whether using tuned would be a good idea on a laptop, power-profiles-daemon should be handling performance tuning IMO.
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sudo apt remove tuned -y
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else
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sudo tuned-adm profile virtual-guest
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fi
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# Enable fstrim.timer
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sudo systemctl enable --now fstrim.timer |