mirror of
https://github.com/tommytran732/Linux-Setup-Scripts
synced 2024-11-22 17:41:32 -05:00
Compare commits
No commits in common. "d712fea4f7fddc95ce7f31c5e51d6388d62c5e1d" and "d4798d1caf5484ecdf526a90081932dcd535a600" have entirely different histories.
d712fea4f7
...
d4798d1caf
@ -1,158 +0,0 @@
|
||||
#!/bin/bash
|
||||
|
||||
# Copyright (C) 2021-2024 Thien Tran
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
|
||||
# use this file except in compliance with the License. You may obtain a copy of
|
||||
# the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
# License for the specific language governing permissions and limitations under
|
||||
# the License.
|
||||
|
||||
#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
|
||||
|
||||
output(){
|
||||
echo -e '\e[36m'"$1"'\e[0m';
|
||||
}
|
||||
|
||||
unpriv(){
|
||||
sudo -u nobody "$@"
|
||||
}
|
||||
|
||||
# Increase compression level
|
||||
sudo sed -i 's/zstd:1/zstd:3/g' /etc/fstab
|
||||
|
||||
# Compliance
|
||||
sudo systemctl mask debug-shell.service
|
||||
sudo systemctl mask kdump.service
|
||||
|
||||
# Setting umask to 077
|
||||
umask 077
|
||||
sudo sed -i 's/umask 022/umask 077/g' /etc/bashrc
|
||||
echo 'umask 077' | sudo tee -a /etc/bashrc
|
||||
|
||||
# Make home directory private
|
||||
sudo chmod 700 /home/*
|
||||
|
||||
# Setup NTS
|
||||
sudo rm -rf /etc/chrony.conf
|
||||
unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf | sudo tee /etc/chrony.conf
|
||||
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysconfig/chronyd | sudo tee /etc/sysconfig/chronyd
|
||||
|
||||
sudo systemctl restart chronyd
|
||||
|
||||
# Remove nullok
|
||||
sudo /usr/bin/sed -i 's/\s+nullok//g' /etc/pam.d/system-auth
|
||||
|
||||
# Harden SSH
|
||||
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/ssh_config.d/10-custom.conf | sudo tee /etc/ssh/ssh_config.d/10-custom.conf
|
||||
sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf
|
||||
|
||||
# Security kernel settings
|
||||
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
|
||||
sudo chmod 644 /etc/modprobe.d/30_security-misc.conf
|
||||
sudo sed -i 's/#install msr/install msr/g' /etc/modprobe.d/30_security-misc.conf
|
||||
sudo sed -i 's/# install bluetooth/install bluetooth/g' /etc/modprobe.d/30_security-misc.conf
|
||||
sudo sed -i 's/# install btusb/install btusb/g' /etc/modprobe.d/30_security-misc.conf
|
||||
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
|
||||
sudo chmod 644 /etc/sysctl.d/990-security-misc.conf
|
||||
sudo sed -i 's/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/990-security-misc.conf
|
||||
sudo sed -i 's/net.ipv4.icmp_echo_ignore_all=1/net.ipv4.icmp_echo_ignore_all=0/g' /etc/sysctl.d/990-security-misc.conf
|
||||
sudo sed -i 's/net.ipv6.icmp.echo_ignore_all=1/net.ipv6.icmp.echo_ignore_all=0/g' /etc/sysctl.d/990-security-misc.conf
|
||||
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
|
||||
sudo chmod 644 /etc/sysctl.d/30_silent-kernel-printk.conf
|
||||
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
|
||||
sudo chmod 644 /etc/sysctl.d/30_security-misc_kexec-disable.conf
|
||||
sudo dracut -f
|
||||
sudo sysctl -p
|
||||
|
||||
if [ -d /boot/loader ]; then
|
||||
sudo sed -i 's/quiet root/quiet mitigations=auto,nosmt spectre_v2=on spec_store_bypass_disable=on tsx=off kvm.nx_huge_pages=force nosmt=force l1d_flush=on spec_rstack_overflow=safe-ret random.trust_bootloader=off random.trust_cpu=off intel_iommu=on amd_iommu=force_isolation efi=disable_early_pci_dma iommu=force iommu.passthrough=0 iommu.strict=1 slab_nomerge init_on_alloc=1 init_on_free=1 pti=on vsyscall=none ia32_emulation=0 page_alloc.shuffle=1 randomize_kstack_offset=on debugfs=off lockdown=confidentiality module.sig_enforce=1 root/g' /etc/kernel/cmdline
|
||||
sudo dnf -y reinstall kernel-core
|
||||
else
|
||||
sudo grubby --update-kernel=ALL --args='mitigations=auto,nosmt spectre_v2=on spec_store_bypass_disable=on tsx=off kvm.nx_huge_pages=force nosmt=force l1d_flush=on spec_rstack_overflow=safe-ret random.trust_bootloader=off random.trust_cpu=off intel_iommu=on amd_iommu=force_isolation efi=disable_early_pci_dma iommu=force iommu.passthrough=0 iommu.strict=1 slab_nomerge init_on_alloc=1 init_on_free=1 pti=on vsyscall=none ia32_emulation=0 page_alloc.shuffle=1 randomize_kstack_offset=on debugfs=off lockdown=confidentiality module.sig_enforce=1'
|
||||
fi
|
||||
|
||||
# Disable coredump
|
||||
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/security/limits.d/30-disable-coredump.conf | sudo tee /etc/security/limits.d/30-disable-coredump.conf
|
||||
|
||||
# Setup ZRAM
|
||||
echo -e '[zram0]\nzram-fraction = 1\nmax-zram-size = 8192\ncompression-algorithm = zstd' | sudo tee /etc/systemd/zram-generator.conf
|
||||
|
||||
# Setup DNF
|
||||
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dnf/dnf.conf | sudo tee /etc/dnf/dnf.conf
|
||||
sudo sed -i 's/^metalink=.*/&\&protocol=https/g' /etc/yum.repos.d/*
|
||||
|
||||
# Enable auto TRIM
|
||||
sudo systemctl enable fstrim.timer
|
||||
|
||||
# Setup fwupd
|
||||
echo 'UriSchemes=file;https' | sudo tee -a /etc/fwupd/fwupd.conf
|
||||
sudo systemctl restart fwupd
|
||||
|
||||
### Differentiating bare metal and virtual installs
|
||||
|
||||
# Installing tuned first here because virt-what is 1 of its dependencies anyways
|
||||
sudo dnf install tuned -y
|
||||
|
||||
virt_type=$(virt-what)
|
||||
if [ "$virt_type" = '' ]; then
|
||||
output 'Virtualization: Bare Metal.'
|
||||
elif [ "$virt_type" = 'openvz lxc' ]; then
|
||||
output 'Virtualization: OpenVZ 7.'
|
||||
elif [ "$virt_type" = 'xen xen-hvm' ]; then
|
||||
output 'Virtualization: Xen-HVM.'
|
||||
elif [ "$virt_type" = 'xen xen-hvm aws' ]; then
|
||||
output 'Virtualization: Xen-HVM on AWS.'
|
||||
else
|
||||
output "Virtualization: $virt_type."
|
||||
fi
|
||||
|
||||
# Setup tuned
|
||||
if [ "$virt_type" = '' ]; then
|
||||
sudo tuned-adm profile latency-performance
|
||||
else
|
||||
if [ "$virt_type" = 'kvm' ]; then
|
||||
sudo dnf install qemu-guest-agent -y
|
||||
fi
|
||||
sudo tuned-adm profile virtual-guest
|
||||
fi
|
||||
|
||||
# Setup real-ucode and hardened_malloc
|
||||
MACHINE_TYPE=$(uname -m)
|
||||
if [ "$virt_type" = '' ] || [ "${MACHINE_TYPE}" == 'x86_64' ]; then
|
||||
sudo dnf install 'https://divested.dev/rpm/fedora/divested-release-20231210-2.noarch.rpm' -y
|
||||
sudo sed -i 's/^metalink=.*/&?protocol=https/g' /etc/yum.repos.d/divested-release.repo
|
||||
if [ "${MACHINE_TYPE}" != 'x86_64' ]; then
|
||||
sudo dnf config-manager --save --setopt=divested.includepkgs=divested-release,real-ucode,microcode_ctl,amd-ucode-firmware
|
||||
sudo dnf install real-ucode -y
|
||||
sudo dracut -f
|
||||
elif [ "$virt_type" != '' ]; then
|
||||
sudo dnf config-manager --save --setopt=divested.includepkgs=divested-release,hardened_malloc
|
||||
sudo dnf install hardened_malloc -y
|
||||
else
|
||||
sudo dnf config-manager --save --setopt=divested.includepkgs=divested-release,real-ucode,microcode_ctl,amd-ucode-firmware,hardened_malloc
|
||||
sudo dnf install real-ucode hardened_malloc -y
|
||||
echo 'libhardened_malloc.so' | sudo tee /etc/ld.so.preload
|
||||
sudo dracut -f
|
||||
fi
|
||||
elif [ "${MACHINE_TYPE}" == 'aarch64' ]; then
|
||||
sudo dnf copr enable secureblue/hardened_malloc -y
|
||||
sudo dnf install hardened_malloc -y
|
||||
fi
|
||||
|
||||
# Setup Networking
|
||||
sudo firewall-cmd --set-default-zone=block
|
||||
sudo firewall-cmd --permanent --add-service=dhcpv6-client
|
||||
sudo firewall-cmd --reload
|
||||
sudo firewall-cmd --lockdown-on
|
||||
|
||||
sudo mkdir -p /etc/systemd/system/NetworkManager.service.d
|
||||
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
|
||||
sudo systemctl daemon-reload
|
||||
sudo systemctl restart NetworkManager
|
||||
@ -67,11 +67,11 @@ sudo sed -i 's/#install msr/install msr/g' /etc/modprobe.d/30_security-misc.conf
|
||||
sudo sed -i 's/# install bluetooth/install bluetooth/g' /etc/modprobe.d/30_security-misc.conf
|
||||
sudo sed -i 's/# install btusb/install btusb/g' /etc/modprobe.d/30_security-misc.conf
|
||||
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
|
||||
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
|
||||
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
|
||||
sudo sed -i 's/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/990-security-misc.conf
|
||||
sudo sed -i 's/net.ipv4.icmp_echo_ignore_all=1/net.ipv4.icmp_echo_ignore_all=0/g' /etc/sysctl.d/990-security-misc.conf
|
||||
sudo sed -i 's/net.ipv6.icmp.echo_ignore_all=1/net.ipv6.icmp.echo_ignore_all=0/g' /etc/sysctl.d/990-security-misc.conf
|
||||
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
|
||||
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
|
||||
sudo sysctl -p
|
||||
|
||||
# Rebuild initramfs
|
||||
|
||||
@ -1,4 +0,0 @@
|
||||
[zram0]
|
||||
zram-fraction = 1
|
||||
max-zram-size = 8192
|
||||
compression-algorithm = zstd
|
||||
Loading…
Reference in New Issue
Block a user