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https://github.com/tommytran732/Linux-Setup-Scripts
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Unbound for Ubuntu
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@ -15,8 +15,10 @@ sudo apt install -y --no-install-recommends tuned unbound resolvconf ufw
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sudo ufw enable
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sudo ufw allow 22/tcp
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#Setup tuned
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sudo tuned-adm profile virtual-guest
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#Setup unbound
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echo 'server:
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trust-anchor-file: "/var/lib/unbound/root.key
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trust-anchor-signaling: yes
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@ -7,6 +7,91 @@ sudo ua enable usg
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sudo apt install -y usg
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sudo usg fix cis_level2_server
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#Install packages
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sudo apt update -y
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sudo apt full-upgrade -y
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sudo apt install -y curl fwupd resolveconf tuned unbound
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#Setup tuned
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sudo tuned-adm profile virtual-guest
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#Setup unbound
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echo 'server:
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trust-anchor-file: "/var/lib/unbound/root.key
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trust-anchor-signaling: yes
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root-key-sentinel: yes
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tls-cert-bundle: /etc/ssl/certs/ca-certificates.crt
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hide-identity: yes
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hide-trustanchor: yes
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hide-version: yes
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deny-any: yes
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harden-algo-downgrade: yes
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harden-large-queries: yes
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harden-referral-path: yes
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ignore-cd-flag: yes
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max-udp-size: 3072
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module-config: "validator iterator"
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qname-minimisation-strict: yes
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unwanted-reply-threshold: 10000000
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use-caps-for-id: yes
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outgoing-port-permit: 1024-65535
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prefetch: yes
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prefetch-key: yes
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forward-zone:
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name: "."
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forward-tls-upstream: yes
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forward-addr: 1.1.1.2@853#security.cloudflare-dns.com
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forward-addr: 1.0.0.2@853#security.cloudflare-dns.com
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forward-addr: 2606:4700:4700::1112@853#security.cloudflare-dns.com
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forward-addr: 2606:4700:4700::1002@853#security.cloudflare-dns.com' | sudo tee /etc/unbound/unbound.conf.d/custom.conf
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sudo mv /etc/unbound/unbound.conf.d/root-auto-trust-anchor-file.conf /etc/unbound/unbound.conf.d/root-auto-trust-anchor-file.conf.bk
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mkdir -p /etc/systemd/system/unbound.service.d
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echo $'[Service]
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CapabilityBoundingSet=CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_SYS_RESOURCE CAP_NET_RAW
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MemoryDenyWriteExecute=true
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NoNewPrivileges=true
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PrivateDevices=true
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PrivateTmp=true
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ProtectHome=true
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ProtectClock=true
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ProtectControlGroups=true
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ProtectKernelLogs=true
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ProtectKernelModules=true
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# This breaks using socket options like \'so-rcvbuf\'. Explicitly disable for visibility.
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ProtectKernelTunables=false
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ProtectProc=invisible
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ProtectSystem=strict
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RuntimeDirectory=unbound
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ConfigurationDirectory=unbound
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StateDirectory=unbound
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RestrictAddressFamilies=AF_INET AF_INET6 AF_NETLINK AF_UNIX
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RestrictRealtime=true
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SystemCallArchitectures=native
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SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module mount @obsolete @resources
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RestrictNamespaces=yes
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LockPersonality=yes
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RestrictSUIDSGID=yes
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ReadWritePaths=@UNBOUND_RUN_DIR@ @UNBOUND_CHROOT_DIR@
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# Below rules are needed when chroot is enabled (usually it\'s enabled by default).
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# If chroot is disabled like chroot: "" then they may be safely removed.
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TemporaryFileSystem=@UNBOUND_CHROOT_DIR@/dev:ro
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TemporaryFileSystem=@UNBOUND_CHROOT_DIR@/run:ro
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BindReadOnlyPaths=-/run/systemd/notify:@UNBOUND_CHROOT_DIR@/run/systemd/notify
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BindReadOnlyPaths=-/dev/urandom:@UNBOUND_CHROOT_DIR@/dev/urandom
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BindPaths=-/dev/log:@UNBOUND_CHROOT_DIR@/dev/log' | sudo tee /etc/systemd/system/unbound.service.d/override.conf
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sudo systemctl daemon-reload
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sudo systemctl restart unbound
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sudo systemctl disable --now systemd-resolved
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#Security kernel settings
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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
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sudo 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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@ -38,11 +123,6 @@ sudo systemctl stop whoopsie.service
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sudo systemctl disable whoopsie.service
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sudo systemctl mask whoopsie.service
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#Update packages and firmware
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sudo apt update -y
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sudo apt full-upgrade -y
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sudo apt install fwupd
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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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