mirror of
https://github.com/tommytran732/Linux-Setup-Scripts
synced 2024-11-22 09:31:34 -05:00
107 lines
4.3 KiB
Bash
107 lines
4.3 KiB
Bash
#!/bin/bash
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echo 'GSSAPIAuthentication no
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VerifyHostKeyDNS yes' | sudo tee /etc/ssh/ssh_config.d/10-custom.conf
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sudo sed -i 's/#GSSAPIAuthentication no/GSSAPIAuthentication no/g' /etc/ssh/sshd_config
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sudo systemctl restart sshd
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sudo find /etc/apt/sources.list.d -type f -exec sudo sed -i 's/http:/https:/g' {} \;
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sudo apt update
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sudo apt upgrade -y
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sudo apt install -y --no-install-recommends tuned unbound ufw
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sudo ufw enable
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sudo ufw allow 22/tcp
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sudo tuned-adm profile virtual-guest
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echo 'server:
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trust-anchor-signaling: yes
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root-key-sentinel: yes
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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: 8.8.8.8#dns.google
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forward-addr: 8.8.4.4#dns.google
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forward-addr: 2001:4860:4860::8888#dns.google
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forward-addr: 2001:4860:4860::8844#dns.google' | sudo tee /etc/unbound/unbound.conf.d/custom.conf
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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 restart unbound
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sudo mkdir -p /etc/systemd/system/sshd.service.d
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sudo curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/systemd/system/sshd.service.d/limits.conf -o /etc/systemd/system/sshd.service.d/limits.conf
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sudo rm -rf /etc/chrony/chrony.conf
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sudo curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf -o /etc/chrony/chrony.conf
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sudo systemctl restart chronyd
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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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sudo 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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sudo 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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sudo 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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sudo 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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sudo 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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sudo mkdir -p /etc/systemd/system/NetworkManager.service.d
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sudo 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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