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https://github.com/tommytran732/Linux-Setup-Scripts
synced 2024-11-09 03:31:33 -05:00
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88918cf7dc
@ -80,7 +80,7 @@ fi
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# Disable coredump
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umask 022
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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
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sudo mkdir -p /etc/systemd/coredump.conf.d
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mkdir -p /etc/systemd/coredump.conf.d
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
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umask 077
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@ -91,7 +91,7 @@ fi
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# Disable coredump
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umask 022
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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
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sudo mkdir -p /etc/systemd/coredump.conf.d
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mkdir -p /etc/systemd/coredump.conf.d
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
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umask 077
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@ -78,6 +78,7 @@ chmod 644 /etc/modprobe.d/server-blacklist.conf
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sed -i 's/kernel_io_uring_disable = 2/#ernel_io_uring_disable = 2/g'
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curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysctl.d/99-server.conf | tee /etc/sysctl.d/99-server.conf
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chmod 644 /etc/sysctl.d/99-server.conf
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dracut -f
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sysctl -p
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# Rebuild initramfs
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@ -85,9 +86,9 @@ update-initramfs -u
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# Disable coredump
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umask 022
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/security/limits.d/30-disable-coredump.conf | tee /etc/security/limits.d/30-disable-coredump.conf
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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
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mkdir -p /etc/systemd/coredump.conf.d
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | tee /etc/systemd/coredump.conf.d/disable.conf
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
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umask 077
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# Harden SSH
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@ -69,7 +69,7 @@ sudo grubby --update-kernel=ALL --args='mitigations=auto,nosmt spectre_v2=on spe
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# Disable coredump
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umask 022
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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
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sudo mkdir -p /etc/systemd/coredump.conf.d
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mkdir -p /etc/systemd/coredump.conf.d
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
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umask 077
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@ -61,6 +61,7 @@ fi
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sudo chmod 644 /etc/modprobe.d/workstation-blacklist.conf
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysctl.d/99-workstation.conf | sudo tee /etc/sysctl.d/99-workstation.conf
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sudo chmod 644 /etc/sysctl.d/99-workstation.conf
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sudo dracut -f
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sudo sysctl -p
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# Rebuild initramfs
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@ -69,7 +70,7 @@ sudo update-initramfs -u
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# Disable coredump
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umask 022
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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
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sudo mkdir -p /etc/systemd/coredump.conf.d
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mkdir -p /etc/systemd/coredump.conf.d
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
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umask 077
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@ -62,6 +62,7 @@ unpriv curl https://raw.githubusercontent.com/secureblue/secureblue/live/config/
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sudo chmod 644 /etc/modprobe.d/server-blacklist.conf
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysctl.d/99-server.conf | sudo tee /etc/sysctl.d/99-server.conf
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sudo chmod 644 /etc/sysctl.d/99-server.conf
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sudo dracut -f
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sudo sysctl -p
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# Rebuild initramfs
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@ -70,7 +71,7 @@ sudo update-initramfs -u
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# Disable coredump
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umask 022
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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
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sudo mkdir -p /etc/systemd/coredump.conf.d
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mkdir -p /etc/systemd/coredump.conf.d
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unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/coredump.conf.d/disable.conf | sudo tee /etc/systemd/coredump.conf.d/disable.conf
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umask 077
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@ -71,8 +71,8 @@ net.ipv6.conf.*.accept_redirects = 0
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net.ipv4.conf.*.rp_filter = 1
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# Respond to ICMP
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net.ipv4.icmp_echo_ignore_all = 0
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net.ipv6.icmp.echo_ignore_all = 0
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net.ipv4.icmp_echo_ignore_all = 1
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net.ipv6.icmp.echo_ignore_all = 1
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# Enable IP Forwarding
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# Almost all of my servers run Docker anyways, and Docker absolutely requires this.
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@ -42,8 +42,6 @@ net.core.bpf_jit_harden = 2
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kernel.unprivileged_userns_clone = 1
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# Disable ptrace. Not needed on workstations.
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# Also, the Debian gVisor package from Google will just take priority over this with their
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# /etc/sysctl.d/999-gvisor.conf file.
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kernel.yama.ptrace_scope = 3
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# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl
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@ -54,6 +52,8 @@ kernel.perf_event_paranoid = 4
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# https://github.com/containerd/containerd/issues/9048
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# Disable io_uring, a very sus feature.
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# Note that this will make using Proxmox extremely annoying though, so you might wanna comment this out
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# on a Proxmox node.
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kernel_io_uring_disable = 2
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# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl-kernel
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