Tomster/Linux-Setup-Scripts
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Use SecureBlue and custom configs whenever possible

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Signed-off-by: Tommy <contact@tommytran.io>
This commit is contained in:
Tommy 2024-06-04 05:33:52 -07:00
parent 236f650566
commit 88918cf7dc
Signed by: Tomster
GPG Key ID: 555C902A34EC968F
4 changed files with 43 additions and 47 deletions
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22
Proxmox-8.sh
View File

@ -73,23 +73,23 @@ proxmox-boot-tool refresh
###
# Kernel hardening
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/modprobe.d/30_security-misc.conf -o /etc/modprobe.d/30_security-misc.conf
sudo sed -i 's/#[[:space:]]*install msr/install msr/g' /etc/modprobe.d/30_security-misc.conf
sed -i 's/#[[:space:]]*install bluetooth/install bluetooth/g' /etc/modprobe.d/30_security-misc.conf
sed -i 's/#[[:space:]]*install btusb/install btusb/g' /etc/modprobe.d/30_security-misc.conf
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/990-security-misc.conf -o /etc/sysctl.d/990-security-misc.conf
sed -i 's/kernel\.yama\.ptrace_scope[[:space:]]*=.*/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/990-security-misc.conf
sed -i 's/net\.ipv4\.icmp_echo_ignore_all[[:space:]]*=.*/net.ipv4.icmp_echo_ignore_all=0/g' /etc/sysctl.d/990-security-misc.conf
sed -i 's/net\.ipv6\.icmp.echo_ignore_all[[:space:]]*=.*/net.ipv6.icmp.echo_ignore_all=0/g' /etc/sysctl.d/990-security-misc.conf
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/30_silent-kernel-printk.conf -o /etc/sysctl.d/30_silent-kernel-printk.conf
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/30_security-misc_kexec-disable.conf -o /etc/sysctl.d/30_security-misc_kexec-disable.conf
curl https://raw.githubusercontent.com/secureblue/secureblue/live/config/files/usr/etc/modprobe.d/blacklist.conf | tee /etc/modprobe.d/server-blacklist.conf
chmod 644 /etc/modprobe.d/server-blacklist.conf
sed -i 's/kernel_io_uring_disable = 2/#ernel_io_uring_disable = 2/g'
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysctl.d/99-server.conf | tee /etc/sysctl.d/99-server.conf
chmod 644 /etc/sysctl.d/99-server.conf
dracut -f
sysctl -p
# Rebuild initramfs
update-initramfs -u
# Disable coredump
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
umask 022
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
mkdir -p /etc/systemd/coredump.conf.d
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
umask 077
# Harden SSH
sed -i 's/#GSSAPIAuthentication no/GSSAPIAuthentication no/g' /etc/ssh/sshd_config

22
RHEL-9.sh
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@ -57,27 +57,21 @@ sudo systemctl daemon-reload
sudo systemctl restart sshd
# 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/#[[:space:]]*install msr/install msr/g' /etc/modprobe.d/30_security-misc.conf
sudo sed -i 's/#[[:space:]]*install bluetooth/install bluetooth/g' /etc/modprobe.d/30_security-misc.conf
sudo sed -i 's/#[[:space:]]*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[[:space:]]*=.*/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/990-security-misc.conf
sudo sed -i 's/net\.ipv4\.icmp_echo_ignore_all[[:space:]]*=.*/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[[:space:]]*=.*/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
unpriv curl https://raw.githubusercontent.com/secureblue/secureblue/live/config/files/usr/etc/modprobe.d/blacklist.conf | sudo tee /etc/modprobe.d/server-blacklist.conf
sudo chmod 644 /etc/modprobe.d/server-blacklist.conf
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysctl.d/99-server.conf | sudo tee /etc/sysctl.d/99-server.conf
sudo chmod 644 /etc/sysctl.d/99-server.conf
sudo dracut -f
sudo sysctl -p
sudo grubby --update-kernel=ALL --args='mitigations=auto,nosmt spectre_v2=on spectre_bhi=on spec_store_bypass_disable=on tsx=off kvm.nx_huge_pages=force nosmt=force l1d_flush=on spec_rstack_overflow=safe-ret gather_data_sampling=force reg_file_data_sampling=on 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 console=tty0 console=ttyS0,115200'
# Disable coredump
umask 022
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
mkdir -p /etc/systemd/coredump.conf.d
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
umask 077
# Setup DNF
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dnf/dnf.conf | sudo tee /etc/dnf/dnf.conf

25
Ubuntu-23.10-Desktop.sh
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@ -52,24 +52,27 @@ fi
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
# Kernel hardening
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/#[[:space:]]*install msr/install msr/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
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 sed -i 's/kernel\.yama\.ptrace_scope[[:space:]]*=.*/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/990-security-misc.conf
# Security kernel settings
if [ "${virtualization}" = 'parallels' ]; then
unpriv curl https://raw.githubusercontent.com/TommyTran732/Kernel-Module-Blacklist/main/etc/modprobe.d/workstation-blacklist.conf | sudo tee /etc/modprobe.d/workstation-blacklist.conf
else
unpriv curl https://raw.githubusercontent.com/secureblue/secureblue/live/config/files/usr/etc/modprobe.d/blacklist.conf | sudo tee /etc/modprobe.d/workstation-blacklist.conf
fi
sudo chmod 644 /etc/modprobe.d/workstation-blacklist.conf
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysctl.d/99-workstation.conf | sudo tee /etc/sysctl.d/99-workstation.conf
sudo chmod 644 /etc/sysctl.d/99-workstation.conf
sudo dracut -f
sudo sysctl -p
# Rebuild initramfs
sudo update-initramfs -u
# Disable coredump
umask 022
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
mkdir -p /etc/systemd/coredump.conf.d
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
umask 077
# Update GRUB config
sed -i 's/splash/splash mitigations=auto,nosmt spectre_v2=on spectre_bhi=on spec_store_bypass_disable=on tsx=off kvm.nx_huge_pages=force nosmt=force l1d_flush=on spec_rstack_overflow=safe-ret gather_data_sampling=force reg_file_data_sampling=on 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/g' /etc/default/grub

21
Ubuntu-24.04-Server.sh
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@ -57,24 +57,23 @@ unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/sys
sudo systemctl daemon-reload
sudo systemctl restart ssh
# Kernel hardening
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 sed -i 's/#[[:space:]]*install msr/install msr/g' /etc/modprobe.d/30_security-misc.conf
sudo sed -i 's/#[[:space:]]*install bluetooth/install bluetooth/g' /etc/modprobe.d/30_security-misc.conf
sudo sed -i 's/#[[:space:]]*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 sed -i 's/kernel.yama.ptrace_scope[[:space:]]*=.*/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/990-security-misc.conf
sudo sed -i 's/net\.ipv4\.icmp_echo_ignore_all[[:space:]]*=.*/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[[:space:]]*=.*/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
# Security kernel settings
unpriv curl https://raw.githubusercontent.com/secureblue/secureblue/live/config/files/usr/etc/modprobe.d/blacklist.conf | sudo tee /etc/modprobe.d/server-blacklist.conf
sudo chmod 644 /etc/modprobe.d/server-blacklist.conf
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysctl.d/99-server.conf | sudo tee /etc/sysctl.d/99-server.conf
sudo chmod 644 /etc/sysctl.d/99-server.conf
sudo dracut -f
sudo sysctl -p
# Rebuild initramfs
sudo update-initramfs -u
# Disable coredump
umask 022
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
mkdir -p /etc/systemd/coredump.conf.d
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
umask 077
# Update GRUB config
if [ ! -d /boot/efi/EFI/ZBM ]; then