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Update Ubuntu-Desktop-20.04-LTS.sh

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TommyTran732 2021-04-14 21:09:35 -04:00 committed by GitHub
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Ubuntu-Desktop-20.04-LTS.sh
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@ -56,6 +56,35 @@ sudo systemctl mask whoopsie.service
sudo sed -i 's/kernel.yama.ptrace_scope = 1/kernel.yama.ptrace_scope = 3/g' /etc/sysctl.d/10-ptrace.conf
sudo sysctl --load=/etc/sysctl.d/10-ptrace.conf
#Security kernel settings
sudo bash -c 'cat > /etc/sysctl.d/51-dmesg-restrict.conf' <<-'EOF'
kernel.dmesg_restrict = 1
EOF
sudo sysctl --load=/etc/sysctl.d/51-dmesg-restrict.conf
sudo bash -c 'cat > /etc/sysctl.d/51-kptr-restrict.conf' <<-'EOF'
kernel.kptr_restrict = 2
EOF
sudo sysctl --load=/etc/sysctl.d/51-kptr-restrict.conf
sudo bash -c 'cat > /etc/sysctl.d/51-kexec-restrict.conf' <<-'EOF'
kernel.kexec_load_disabled = 1
EOF
sudo sysctl --load=/etc/sysctl.d/51-kexec-restrict.conf
sudo bash -c 'cat > /etc/sysctl.d/10-security.conf' <<-'EOF'
fs.protected_hardlinks = 1
fs.protected_symlinks = 1
net.core.bpf_jit_harden = 2
kernel.yama.ptrace_scope = 3
module.sig_enforce = 1
EOF
sudo sysctl --load=/etc/sysctl.d/10-security.conf.conf
#Blacklist Firewire SBP2
echo "blacklist firewire-sbp2" | sudo tee /etc/modprobe.d/blacklist.conf