33 lines
899 B
Nix
33 lines
899 B
Nix
{ config, pkgs, ... }:
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{
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# Only allow members of the wheel group to execute sudo
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security.sudo.execWheelOnly = true;
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# Linux Audit Framework (suggested by Lynis)
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security.auditd.enable = true;
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security.audit.enable = true;
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# Kernel Hardening
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security.protectKernelImage = true;
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# Sysctl hardening
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boot.kernel.sysctl = {
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# Hide kernel pointers from unprivileged users
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"kernel.kptr_restrict" = 1;
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# Restrict ptrace to only child processes
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"kernel.yama.ptrace_scope" = 1;
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# Disable BPF JIT for unprivileged users
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"kernel.unprivileged_bpf_disabled" = 1;
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# Networking hardening
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"net.ipv4.conf.all.log_martians" = 1;
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"net.ipv4.conf.all.rp_filter" = 1;
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"net.ipv4.conf.default.log_martians" = 1;
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"net.ipv4.conf.default.rp_filter" = 1;
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"net.ipv6.conf.all.accept_redirects" = 0;
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"net.ipv6.conf.default.accept_redirects" = 0;
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};
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}
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