mirror of
https://github.com/tommytran732/Linux-Setup-Scripts
synced 2024-09-19 05:34:42 -04:00
80 lines
4.1 KiB
Bash
80 lines
4.1 KiB
Bash
#!/bin/bash
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# You need to add either the non-subscription repo or the testing repo from the Proxmox WebUI after running this script.
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# Setup NTS
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rm -rf /etc/chrony/chrony.conf
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curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf -o /etc/chrony/chrony.conf
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systemctl restart chronyd
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# Harden SSH
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echo 'GSSAPIAuthentication no
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VerifyHostKeyDNS yes' | tee /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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sed -i 's/#PasswordAuthentication yes/PasswordAuthentication no/g' /etc/ssh/sshd_config
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sed -i 's/#GSSAPIAuthentication no/GSSAPIAuthentication no/g' /etc/ssh/sshd_config
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mkdir -p /etc/systemd/system/sshd.service.d
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curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/systemd/system/sshd.service.d/local.conf -o /etc/systemd/system/sshd.service.d/local.conf
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systemctl daemon-reload
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systemctl restart sshd
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# Setup repositories
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sed -i '1 {s/^/#/}' /etc/apt/sources.list.d/pve-enterprise.list
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echo 'deb https://deb.debian.org/debian/ bookworm main contrib non-free
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deb https://deb.debian.org/debian/ bookworm-updates main contrib non-free
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# security updates
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deb https://security.debian.org bookworm-security main contrib non-free
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deb http://download.proxmox.com/debian/pve bookworm pve-no-subscription' | tee /etc/apt/sources.list
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# Update and install packages
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apt update
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apt upgrade -y
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apt install -y --no-install-recommends intel-microcode tuned fwupd dropbear-initramfs
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### This part assumes that you are using systemd-boot
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echo -e "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 $(cat /etc/kernel/cmdline)" > /etc/kernel/cmdline
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proxmox-boot-tool refresh
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###
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# Kernel hardening
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curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/modprobe.d/30_security-misc.conf -o /etc/modprobe.d/30_security-misc.conf
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curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/sysctl.d/30_security-misc.conf -o /etc/sysctl.d/30_security-misc.conf
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sed -i 's/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/30_security-misc.conf
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sed -i 's/net.ipv4.icmp_echo_ignore_all=1/net.ipv4.icmp_echo_ignore_all=0/g' /etc/sysctl.d/30_security-misc.conf
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sed -i 's/net.ipv6.icmp.echo_ignore_all=1/net.ipv6.icmp.echo_ignore_all=0/g' /etc/sysctl.d/30_security-misc.conf
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curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/sysctl.d/30_silent-kernel-printk.conf -o /etc/sysctl.d/30_silent-kernel-printk.conf
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curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/sysctl.d/30_security-misc_kexec-disable.conf -o /etc/sysctl.d/30_security-misc_kexec-disable.conf
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mkdir -p /etc/systemd/system/NetworkManager.service.d
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curl https://gitlab.com/divested/brace/-/raw/master/brace/usr/lib/systemd/system/NetworkManager.service.d/99-brace.conf -o /etc/systemd/system/NetworkManager.service.d/99-brace.conf
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echo "* hard core 0" | tee -a /etc/security/limits.conf
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sed -i 's/#GSSAPIAuthentication no/GSSAPIAuthentication no/g' /etc/ssh/sshd_config
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# Setup automatic updates
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mkdir -p /etc/systemd/system/pve-daily-update.service.d
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echo '[Service]
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ExecStart=/usr/bin/pveupgrade' | tee /etc/systemd/system/pve-daily-update.service.d/override.conf
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systemctl daemon-reload
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systemctl enable --now pve-daily-update.timer
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mkdir -p /etc/systemd/system/fwupd-refresh.service.d
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echo '[Service]
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ExecStart=/usr/bin/fwupdmgr update' | tee /etc/systemd/system/fwupd-refresh.service.d/override.conf
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systemctl daemon-reload
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systemctl enable --now fwupd-refresh.timer
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# Disable Nagging
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sed -Ezi.bak "s/(Ext.Msg.show\(\{\s+title: gettext\('No valid sub)/void\(\{ \/\/\1/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js
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systemctl restart pveproxy.service
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# Setup tuned
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tuned-adm profile virtual-host
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# Enable fstrim.timer
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systemctl enable --now fstrim.timer |