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(Mostly) unprivileged curl

Signed-off-by: Tommy <contact@tommytran.io>
This commit is contained in:
Tommy 2023-12-02 04:56:58 -07:00
parent 11c44e2ecb
commit 8538648088
No known key found for this signature in database
GPG Key ID: D30DEC268D3FEB17
6 changed files with 75 additions and 55 deletions

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@ -20,15 +20,15 @@ output(){
echo -e '\e[36m'$1'\e[0m'; echo -e '\e[36m'$1'\e[0m';
} }
unpriv(){
sudo -u nobody "$@"
}
#Variables #Variables
USER=$(whoami) USER=$(whoami)
PARTITIONID=$(sudo cat /etc/crypttab | awk '{print $1}') PARTITIONID=$(sudo cat /etc/crypttab | awk '{print $1}')
PARTITIONUUID=$(sudo blkid -s UUID -o value /dev/mapper/"${PARTITIONID}") PARTITIONUUID=$(sudo blkid -s UUID -o value /dev/mapper/"${PARTITIONID}")
output(){
echo -e '\e[36m'$1'\e[0m';
}
# Moving to the home directory # Moving to the home directory
#Note that I always use /home/${USER} because gnome-terminal is wacky and sometimes doesn't load the environment variables in correctly (Right click somewhere in nautilus, click on open in terminal, then hit create new tab and you will see.) #Note that I always use /home/${USER} because gnome-terminal is wacky and sometimes doesn't load the environment variables in correctly (Right click somewhere in nautilus, click on open in terminal, then hit create new tab and you will see.)
cd /home/"${USER}" || exit cd /home/"${USER}" || exit
@ -43,15 +43,15 @@ chmod 700 /home/*
# Setup NTS # Setup NTS
sudo rm -rf /etc/chrony/chrony.conf sudo rm -rf /etc/chrony/chrony.conf
curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf | sudo tee /etc/chrony/chrony.conf unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf | sudo tee /etc/chrony/chrony.conf
echo '# Command-line options for chronyd echo '# Command-line options for chronyd
OPTIONS="-F 1"' | sudo tee /etc/sysconfig/chronyd OPTIONS="-F 1"' | sudo tee /etc/sysconfig/chronyd
sudo systemctl restart chronyd sudo systemctl restart chronyd
# Setup Networking # Setup Networking
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/NetworkManager/conf.d/00-macrandomize.conf | sudo tee /etc/NetworkManager/conf.d/00-macrandomize.conf unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/NetworkManager/conf.d/00-macrandomize.conf | sudo tee /etc/NetworkManager/conf.d/00-macrandomize.conf
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/NetworkManager/conf.d/01-transient-hostname.conf | sudo tee /etc/NetworkManager/conf.d/01-transient-hostname.conf unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/NetworkManager/conf.d/01-transient-hostname.conf | sudo tee /etc/NetworkManager/conf.d/01-transient-hostname.conf
sudo nmcli general reload conf sudo nmcli general reload conf
sudo hostnamectl hostname 'localhost' sudo hostnamectl hostname 'localhost'
sudo hostnamectl --transient hostname '' sudo hostnamectl --transient hostname ''
@ -66,10 +66,10 @@ echo "VerifyHostKeyDNS yes" | sudo tee -a /etc/ssh/ssh_config.d/10-custom.conf
sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf
# Security kernel settings # Security kernel settings
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 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
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/990-security-misc.conf | sudo tee /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 | 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_silent-kernel-printk.conf | sudo tee /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 | sudo tee /etc/sysctl.d/30_security-misc_kexec-disable.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=1/g' /etc/sysctl.d/990-security-misc.conf sudo sed -i 's/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=1/g' /etc/sysctl.d/990-security-misc.conf
sudo grubby --update-kernel=ALL --args='spectre_v2=on spec_store_bypass_disable=on l1tf=full,force mds=full,nosmt tsx=off tsx_async_abort=full,nosmt kvm.nx_huge_pages=force nosmt=force l1d_flush=on mmio_stale_data=full,nosmt random.trust_bootloader=off random.trust_cpu=off intel_iommu=on amd_iommu=on efi=disable_early_pci_dma iommu.passthrough=0 iommu.strict=1 slab_nomerge init_on_alloc=1 init_on_free=1 pti=on vsyscall=none page_alloc.shuffle=1 randomize_kstack_offset=on extra_latent_entropy debugfs=off' sudo grubby --update-kernel=ALL --args='spectre_v2=on spec_store_bypass_disable=on l1tf=full,force mds=full,nosmt tsx=off tsx_async_abort=full,nosmt kvm.nx_huge_pages=force nosmt=force l1d_flush=on mmio_stale_data=full,nosmt random.trust_bootloader=off random.trust_cpu=off intel_iommu=on amd_iommu=on efi=disable_early_pci_dma iommu.passthrough=0 iommu.strict=1 slab_nomerge init_on_alloc=1 init_on_free=1 pti=on vsyscall=none page_alloc.shuffle=1 randomize_kstack_offset=on extra_latent_entropy debugfs=off'
sudo dracut -f sudo dracut -f
@ -77,23 +77,23 @@ sudo sysctl -p
# Systemd Hardening # Systemd Hardening
sudo mkdir -p /etc/systemd/system/NetworkManager.service.d sudo mkdir -p /etc/systemd/system/NetworkManager.service.d
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 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 mkdir -p /etc/systemd/system/irqbalance.service.d sudo mkdir -p /etc/systemd/system/irqbalance.service.d
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 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
sudo systemctl restart NetworkManager sudo systemctl restart NetworkManager
sudo systemctl restart irqbalance sudo systemctl restart irqbalance
# Disable automount # Disable automount
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dconf/db/local.d/automount-disable | sudo tee /etc/dconf/db/local.d/automount-disable unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dconf/db/local.d/automount-disable | sudo tee /etc/dconf/db/local.d/automount-disable
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dconf/db/local.d/locks/automount-disable | sudo tee /etc/dconf/db/local.d/locks/automount-disable unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dconf/db/local.d/locks/automount-disable | sudo tee /etc/dconf/db/local.d/locks/automount-disable
sudo dconf update sudo dconf update
# Setup ZRAM # Setup ZRAM
echo -e '[zram0]\nzram-fraction = 1\nmax-zram-size = 8192\ncompression-algorithm = zstd' | sudo tee /etc/systemd/zram-generator.conf echo -e '[zram0]\nzram-fraction = 1\nmax-zram-size = 8192\ncompression-algorithm = zstd' | sudo tee /etc/systemd/zram-generator.conf
# Speed up DNF # Speed up DNF
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dnf/dnf.conf | sudo tee /etc/dnf/dnf.conf 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/* sudo sed -i 's/^metalink=.*/&\&protocol=https/g' /etc/yum.repos.d/*
# Remove unneeded packages # Remove unneeded packages
@ -137,8 +137,8 @@ if [ "${MACHINE_TYPE}" == 'x86_64' ]; then
sudo dnf install -y microsoft-edge-stable sudo dnf install -y microsoft-edge-stable
sudo mkdir -p /etc/opt/edge/policies/managed/ /etc/opt/edge/policies/recommended/ sudo mkdir -p /etc/opt/edge/policies/managed/ /etc/opt/edge/policies/recommended/
sudo chmod 755 /etc/opt/edge/policies/managed/ /etc/opt/edge/policies/recommended/ sudo chmod 755 /etc/opt/edge/policies/managed/ /etc/opt/edge/policies/recommended/
curl https://raw.githubusercontent.com/TommyTran732/Microsoft-Edge-Policies/main/Linux/managed.json | sudo tee /etc/opt/edge/policies/managed/managed.json unpriv curl https://raw.githubusercontent.com/TommyTran732/Microsoft-Edge-Policies/main/Linux/managed.json | sudo tee /etc/opt/edge/policies/managed/managed.json
curl https://raw.githubusercontent.com/TommyTran732/Microsoft-Edge-Policies/main/Linux/recommended.json | sudo tee /etc/opt/edge/policies/managed/recommended.json unpriv curl https://raw.githubusercontent.com/TommyTran732/Microsoft-Edge-Policies/main/Linux/recommended.json | sudo tee /etc/opt/edge/policies/managed/recommended.json
sudo chmod 644 /etc/opt/edge/policies/managed/managed.json /etc/opt/edge/policies/managed/recommended.json sudo chmod 644 /etc/opt/edge/policies/managed/managed.json /etc/opt/edge/policies/managed/recommended.json
fi fi

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@ -20,15 +20,19 @@ output(){
echo -e '\e[36m'$1'\e[0m'; echo -e '\e[36m'$1'\e[0m';
} }
unpriv(){
sudo -u nobody "$@"
}
# Install Docker # Install Docker
sudo mkdir -m 0755 -p /etc/apt/keyrings sudo mkdir -m 0755 -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg unpriv curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt update sudo apt update
sudo apt -y --no-install-recommends install docker-ce sudo apt -y --no-install-recommends install docker-ce
# Install gVisor # Install gVisor
curl -fsSL https://gvisor.dev/archive.key | sudo gpg --dearmor -o /usr/share/keyrings/gvisor-archive-keyring.gpg unpriv curl -fsSL https://gvisor.dev/archive.key | sudo gpg --dearmor -o /usr/share/keyrings/gvisor-archive-keyring.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/gvisor-archive-keyring.gpg] https://storage.googleapis.com/gvisor/releases release main" | sudo tee /etc/apt/sources.list.d/gvisor.list > /dev/null echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/gvisor-archive-keyring.gpg] https://storage.googleapis.com/gvisor/releases release main" | sudo tee /etc/apt/sources.list.d/gvisor.list > /dev/null
sudo apt update sudo apt update
sudo apt -y --no-install-recommends install runsc sudo apt -y --no-install-recommends install runsc

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@ -18,9 +18,13 @@ output(){
echo -e '\e[36m'$1'\e[0m'; echo -e '\e[36m'$1'\e[0m';
} }
unpriv(){
sudo -u nobody "$@"
}
# Setup NTS # Setup NTS
sudo rm -rf /etc/chrony/chrony.conf sudo rm -rf /etc/chrony/chrony.conf
curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf | sudo tee /etc/chrony/chrony.conf unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf | sudo tee /etc/chrony/chrony.conf
sudo systemctl restart chronyd sudo systemctl restart chronyd
# Setup repositories # Setup repositories
@ -39,22 +43,22 @@ sudo ufw allow OpenSSH
echo 'GSSAPIAuthentication no echo 'GSSAPIAuthentication no
VerifyHostKeyDNS yes' | sudo tee /etc/ssh/ssh_config.d/10-custom.conf VerifyHostKeyDNS yes' | sudo tee /etc/ssh/ssh_config.d/10-custom.conf
sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/sshd_config/10-custom.conf | sudo tee /etc/ssh/sshd_config.d/10-custom.conf unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/sshd_config/10-custom.conf | sudo tee /etc/ssh/sshd_config.d/10-custom.conf
sudo chmod 644 /etc/ssh/sshd_config.d/10-custom.conf sudo chmod 644 /etc/ssh/sshd_config.d/10-custom.conf
sudo mkdir -p /etc/systemd/system/ssh.service.d sudo mkdir -p /etc/systemd/system/ssh.service.d
curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/systemd/system/sshd.service.d/local.conf | sudo tee /etc/systemd/system/ssh.service.d/override.conf unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/systemd/system/sshd.service.d/local.conf | sudo tee /etc/systemd/system/ssh.service.d/override.conf
sudo systemctl daemon-reload sudo systemctl daemon-reload
sudo systemctl restart sshd sudo systemctl restart sshd
# Kernel Hardening # Kernel Hardening
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 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
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/990-security-misc.conf | sudo tee /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/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.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 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
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_silent-kernel-printk.conf | sudo tee /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 | sudo tee /etc/sysctl.d/30_security-misc_kexec-disable.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 mkdir -p /etc/systemd/system/NetworkManager.service.d sudo mkdir -p /etc/systemd/system/NetworkManager.service.d
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 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 sysctl -p sudo sysctl -p

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@ -20,6 +20,10 @@ output(){
echo -e '\e[36m'$1'\e[0m'; echo -e '\e[36m'$1'\e[0m';
} }
unpriv(){
sudo -u nobody "$@"
}
# Setup NTS # Setup NTS
sudo curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf -o /etc/chrony.conf sudo curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf -o /etc/chrony.conf
@ -38,21 +42,21 @@ mkdir -p /etc/ssh/ssh_config.d /etc/ssh/sshd_config.d
echo 'GSSAPIAuthentication no echo 'GSSAPIAuthentication no
VerifyHostKeyDNS yes' | sudo tee /etc/ssh/ssh_config.d/10-custom.conf VerifyHostKeyDNS yes' | sudo tee /etc/ssh/ssh_config.d/10-custom.conf
sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/sshd_config/10-custom.conf | sudo tee /etc/ssh/sshd_config.d/10-custom.conf unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/sshd_config/10-custom.conf | sudo tee /etc/ssh/sshd_config.d/10-custom.conf
sudo chmod 644 /etc/ssh/sshd_config.d/10-custom.conf sudo chmod 644 /etc/ssh/sshd_config.d/10-custom.conf
curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/systemd/system/sshd.service.d/local.conf | sudo tee /etc/systemd/system/sshd.service.d/override.conf unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/systemd/system/sshd.service.d/local.conf | sudo tee /etc/systemd/system/sshd.service.d/override.conf
sudo systemctl daemon-reload sudo systemctl daemon-reload
sudo systemctl restart sshd sudo systemctl restart sshd
# Kernel hardening # Kernel hardening
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 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
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/990-security-misc.conf | sudo tee /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/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.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 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
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_silent-kernel-printk.conf | sudo tee /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 | sudo tee /etc/sysctl.d/30_security-misc_kexec-disable.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 grubby --update-kernel=ALL --args='spectre_v2=on spec_store_bypass_disable=on l1tf=full,force mds=full,nosmt tsx=off tsx_async_abort=full,nosmt kvm.nx_huge_pages=force nosmt=force l1d_flush=on mmio_stale_data=full,nosmt random.trust_bootloader=off random.trust_cpu=off intel_iommu=on amd_iommu=on efi=disable_early_pci_dma iommu.passthrough=0 iommu.strict=1 slab_nomerge init_on_alloc=1 init_on_free=1 pti=on vsyscall=none page_alloc.shuffle=1 randomize_kstack_offset=on extra_latent_entropy debugfs=off' sudo grubby --update-kernel=ALL --args='spectre_v2=on spec_store_bypass_disable=on l1tf=full,force mds=full,nosmt tsx=off tsx_async_abort=full,nosmt kvm.nx_huge_pages=force nosmt=force l1d_flush=on mmio_stale_data=full,nosmt random.trust_bootloader=off random.trust_cpu=off intel_iommu=on amd_iommu=on efi=disable_early_pci_dma iommu.passthrough=0 iommu.strict=1 slab_nomerge init_on_alloc=1 init_on_free=1 pti=on vsyscall=none page_alloc.shuffle=1 randomize_kstack_offset=on extra_latent_entropy debugfs=off'
sudo dracut -f sudo dracut -f
sudo sysctl -p sudo sysctl -p
@ -60,17 +64,17 @@ sudo sysctl -p
# Systemd hardening # Systemd hardening
sudo mkdir -p /etc/systemd/system/NetworkManager.service.d sudo mkdir -p /etc/systemd/system/NetworkManager.service.d
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 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 daemon-reload
sudo systemctl restart NetworkManager sudo systemctl restart NetworkManager
sudo mkdir -p /etc/systemd/system/irqbalance.service.d sudo mkdir -p /etc/systemd/system/irqbalance.service.d
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 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
sudo systemctl daemon-reload sudo systemctl daemon-reload
sudo systemctl restart irqbalance sudo systemctl restart irqbalance
# Setup dnf # Setup dnf
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/dnf/dnf.conf | sudo tee /etc/dnf/dnf.conf 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/* sudo sed -i 's/^metalink=.*/&\&protocol=https/g' /etc/yum.repos.d/*
# Setup unbound # Setup unbound
@ -190,7 +194,7 @@ if [ "$virt_type" = "" ]; then
echo 'UriSchemes=file;https' | sudo tee -a /etc/fwupd/fwupd.conf echo 'UriSchemes=file;https' | sudo tee -a /etc/fwupd/fwupd.conf
sudo systemctl restart fwupd sudo systemctl restart fwupd
mkdir -p /etc/systemd/system/fwupd-refresh.service.d mkdir -p /etc/systemd/system/fwupd-refresh.service.d
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/system/fwupd-refresh.service.d/override.conf | sudo tee /etc/systemd/system/fwupd-refresh.service.d/override.conf unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/system/fwupd-refresh.service.d/override.conf | sudo tee /etc/systemd/system/fwupd-refresh.service.d/override.conf
sudo systemctl daemon-reload sudo systemctl daemon-reload
sudo systemctl enable --now fwupd-refresh.timer sudo systemctl enable --now fwupd-refresh.timer
fi fi

View File

@ -21,6 +21,10 @@ output(){
echo -e '\e[36m'$1'\e[0m'; echo -e '\e[36m'$1'\e[0m';
} }
unpriv(){
sudo -u nobody "$@"
}
#Compliance and updates #Compliance and updates
sudo ua enable usg sudo ua enable usg
sudo apt update -y sudo apt update -y
@ -45,7 +49,7 @@ echo "umask 077" | sudo tee --append /etc/profile
# Setup NTS # Setup NTS
sudo systemctl disable systemd-timesyncd sudo systemctl disable systemd-timesyncd
sudo apt install -y curl chrony sudo apt install -y curl chrony
curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf | sudo tee /etc/chrony/chrony.conf unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf | sudo tee /etc/chrony/chrony.conf
sudo systemctl restart chronyd sudo systemctl restart chronyd
# Setup UFW # Setup UFW
@ -60,10 +64,10 @@ echo "VerifyHostKeyDNS yes" | sudo tee -a /etc/ssh/ssh_config.d/10-custom.conf
sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf
# Kernel hardening # Kernel hardening
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 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
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/990-security-misc.conf | sudo tee /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 | 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_silent-kernel-printk.conf | sudo tee /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 | sudo tee /etc/sysctl.d/30_security-misc_kexec-disable.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/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/990-security-misc.conf
sudo sysctl -p sudo sysctl -p
@ -80,13 +84,13 @@ sudo systemctl mask whoopsie.service
# Systemd Hardening # Systemd Hardening
sudo mkdir -p /etc/systemd/system/NetworkManager.service.d sudo mkdir -p /etc/systemd/system/NetworkManager.service.d
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 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 mkdir -p /etc/systemd/system/irqbalance.service.d sudo mkdir -p /etc/systemd/system/irqbalance.service.d
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 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
# Disable automount # Disable automount
curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/dconf/db/local.d/automount-disable -o /etc/dconf/db/local.d/automount-disable unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/dconf/db/local.d/automount-disable -o /etc/dconf/db/local.d/automount-disable
curl curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/dconf/db/local.d/locks/automount-disable -o /etc/dconf/db/local.d/locks/automount-disable unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script/main/etc/dconf/db/local.d/locks/automount-disable -o /etc/dconf/db/local.d/locks/automount-disable
sudo dconf update sudo dconf update
# Disable crash reports # Disable crash reports
@ -123,8 +127,8 @@ sudo apt install -y git-core gnome-text-editor
sudo snap install eog sudo snap install eog
# Setup Networking # Setup Networking
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 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
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 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
sudo nmcli general reload conf sudo nmcli general reload conf
sudo hostnamectl hostname 'localhost' sudo hostnamectl hostname 'localhost'
sudo hostnamectl --transient hostname '' sudo hostnamectl --transient hostname ''

View File

@ -21,6 +21,10 @@ output(){
echo -e '\e[36m'$1'\e[0m'; echo -e '\e[36m'$1'\e[0m';
} }
unpriv(){
sudo -u nobody "$@"
}
#Compliance and updates #Compliance and updates
sudo ua enable usg sudo ua enable usg
sudo apt update -y sudo apt update -y
@ -49,10 +53,10 @@ sudo ufw allow OpenSSH
echo 'GSSAPIAuthentication no echo 'GSSAPIAuthentication no
VerifyHostKeyDNS yes' | sudo tee /etc/ssh/ssh_config.d/10-custom.conf VerifyHostKeyDNS yes' | sudo tee /etc/ssh/ssh_config.d/10-custom.conf
sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf sudo chmod 644 /etc/ssh/ssh_config.d/10-custom.conf
sudo curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/sshd_config/10-custom.conf -o /etc/ssh/sshd_config.d/10-custom.conf unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/sshd_config/10-custom.conf | sudo tee /etc/ssh/sshd_config.d/10-custom.conf
sudo chmod 644 /etc/ssh/sshd_config.d/10-custom.conf sudo chmod 644 /etc/ssh/sshd_config.d/10-custom.conf
sudo mkdir -p /etc/systemd/system/ssh.service.d sudo mkdir -p /etc/systemd/system/ssh.service.d
sudo curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/systemd/system/sshd.service.d/local.conf -o /etc/systemd/system/ssh.service.d/override.conf unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/systemd/system/sshd.service.d/local.conf | sudo tee /etc/systemd/system/ssh.service.d/override.conf
sudo systemctl daemon-reload sudo systemctl daemon-reload
sudo systemctl restart sshd sudo systemctl restart sshd
@ -130,10 +134,10 @@ sudo systemctl restart unbound
sudo systemctl disable --now systemd-resolved sudo systemctl disable --now systemd-resolved
# Kernel hardening # Kernel hardening
sudo curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/modprobe.d/30_security-misc.conf -o /etc/modprobe.d/30_security-misc.conf 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 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 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 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 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 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 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/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.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 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
@ -192,7 +196,7 @@ if [ "$virt_type" = "" ]; then
echo 'UriSchemes=file;https' | sudo tee -a /etc/fwupd/fwupd.conf echo 'UriSchemes=file;https' | sudo tee -a /etc/fwupd/fwupd.conf
sudo systemctl restart fwupd sudo systemctl restart fwupd
mkdir -p /etc/systemd/system/fwupd-refresh.service.d mkdir -p /etc/systemd/system/fwupd-refresh.service.d
sudo curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/system/fwupd-refresh.service.d/override.conf -o /etc/systemd/system/fwupd-refresh.service.d/override.conf unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/system/fwupd-refresh.service.d/override.conf | sudo tee /etc/systemd/system/fwupd-refresh.service.d/override.conf
sudo systemctl daemon-reload sudo systemctl daemon-reload
sudo systemctl enable --now fwupd-refresh.timer sudo systemctl enable --now fwupd-refresh.timer
fi fi