diff --git a/Fedora-Server-40.sh b/Fedora-Server-40.sh index 45ca27f..c387a24 100644 --- a/Fedora-Server-40.sh +++ b/Fedora-Server-40.sh @@ -97,6 +97,10 @@ unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/m 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/* +# Setup automatic updates +sudo sed -i 's/apply_updates = no/apply_updates = yes\nreboot = when-needed/g' /etc/dnf/automatic.conf +sudo systemctl enable --now dnf-automatic.timer + # Remove unnecessary packages sudo dnf remove -y cockpit* diff --git a/RHEL-9.sh b/RHEL-9.sh index 00fe734..ac05636 100644 --- a/RHEL-9.sh +++ b/RHEL-9.sh @@ -22,25 +22,28 @@ unpriv(){ sudo -u nobody "$@" } +virtualization=$(systemd-detect-virt) + # Compliance sudo systemctl mask debug-shell.service sudo systemctl mask kdump.service +# Setting umask to 077 +umask 077 +sudo sed -i 's/^UMASK.*/UMASK 077/g' /etc/login.defs +sudo sed -i 's/^HOME_MODE/#HOME_MODE/g' /etc/login.defs +sudo sed -i 's/^USERGROUPS_ENAB.*/USERGROUPS_ENAB no/g' /etc/login.defs +sudo sed -i 's/umask 022/umask 077/g' /etc/bashrc + +# Make home directory private +sudo chmod 700 /home/* + # Setup NTS 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 -# Make home directory private -sudo chmod 700 /home/* - -# Setup Firewalld - -sudo firewall-cmd --permanent --remove-service=cockpit -sudo firewall-cmd --reload -sudo firewall-cmd --lockdown-on - # Remove nullok sudo /usr/bin/sed -i 's/\s+nullok//g' /etc/pam.d/system-auth @@ -53,47 +56,46 @@ unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/sys sudo systemctl daemon-reload sudo systemctl restart sshd -# Kernel hardening - +# 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/10-security-misc.conf -sudo sed -i 's/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/10-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/10-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/10-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 -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' + +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 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 -# Systemd Hardening - -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 - -sudo mkdir -p /etc/systemd/system/irqbalance.service.d -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 restart irqbalance - -# Remove packages - -sudo dnf remove baobab chrome-gnome-shell evince firefox gedit gnome-calculator gnome-characters gnome-font-viewer gnome-screenshot gnome-tour qemu-guest-agent 'sssd*' 'yelp*' - -# Setup dnf +# 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/* -# Setup unbound +# Setup automatic updates +sudo sed -i 's/apply_updates = no/apply_updates = yes\nreboot = when-needed/g' /etc/dnf/automatic.conf +sudo systemctl enable --now dnf-automatic.timer +# Remove unnecessary packages +sudo dnf remove -y cockpit* + +# Install appropriate virtualization drivers +if [ "$virtualization" = 'kvm' ]; then + sudo dnf install -y qemu-guest-agent +fi + +# Setup unbound sudo dnf install unbound -y echo 'server: @@ -154,51 +156,41 @@ sudo dnf install -y yara sudo insights-client --collector malware-detection sudo sed -i 's/test_scan: true/test_scan: false/' /etc/insights-client/malware-detection-config.yml -# Setup automatic updates +# Setup fwupd +if [ "$virtualization" = 'none' ]; then + sudo dnf install -y fwupd + echo 'UriSchemes=file;https' | sudo tee -a /etc/fwupd/fwupd.conf + sudo systemctl restart fwupd + mkdir -p /etc/systemd/system/fwupd-refresh.service.d + 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 enable --now fwupd-refresh.timer +fi -sudo sed -i 's/apply_updates = no/apply_updates = yes\nreboot = when-needed/g' /etc/dnf/automatic.conf -sudo systemctl enable --now dnf-automatic.timer - -# Enable fstrim.timer -sudo systemctl enable --now fstrim.timer +# Enable auto TRIM +sudo systemctl enable fstrim.timer ### 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 - if [ "$virt_type" = 'kvm' ]; then - sudo dnf install qemu-guest-agent -y - fi +sudo dnf install -y tuned +sudo systemctl enable --now tuned + +if [ "$virtualization" = 'none' ]; then + sudo tuned-adm profile latency-performance else - sudo tuned-adm profile virtual-guest + sudo tuned-adm profile virtual-guest fi # Setup real-ucode and hardened_malloc -if [ "$virt_type" = '' ] || [ "${MACHINE_TYPE}" == 'x86_64' ]; then +if [ "$virtualization" = 'none' ] || [ "${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 + elif [ "$virtualization" != 'none' ]; then sudo dnf config-manager --save --setopt=divested.includepkgs=divested-release,hardened_malloc sudo dnf install hardened_malloc -y else @@ -212,13 +204,16 @@ elif [ "${MACHINE_TYPE}" == 'aarch64' ]; then sudo dnf install hardened_malloc -y fi -# Setup fwupd -if [ "$virt_type" = '' ]; then - sudo dnf install fwupd -y - echo 'UriSchemes=file;https' | sudo tee -a /etc/fwupd/fwupd.conf - sudo systemctl restart fwupd - mkdir -p /etc/systemd/system/fwupd-refresh.service.d - 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 enable --now fwupd-refresh.timer -fi \ No newline at end of file +# Setup Networking +sudo firewall-cmd --permanent --remove-service=cockpit +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 + +# Setup notices +unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/issue | sudo tee /etc/issue +unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/issue | sudo tee /etc/issue.net \ No newline at end of file