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nixos/profiles/server: remove hardened-config submodule

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We're also moving it to a profiles module ala-nixpkgs.
This commit is contained in:
Gabriel Arazas 2024-01-22 12:21:37 +08:00
parent fc3f7eb7c7
commit d5c5ac2f0c
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GPG Key ID: ADE0C41DAB221FCC
3 changed files with 18 additions and 28 deletions
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1
configs/nixos/plover/default.nix
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@ -55,7 +55,6 @@
profiles.server = { profiles.server = {
enable = true; enable = true;
hardened-config.enable = true;
cleanup.enable = true; cleanup.enable = true;
}; };

27
modules/nixos/_private/profiles/server.nix
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@ -9,7 +9,6 @@ in
{ {
options.profiles.server = { options.profiles.server = {
enable = lib.mkEnableOption "server-related settings"; enable = lib.mkEnableOption "server-related settings";
hardened-config.enable = lib.mkEnableOption "additional hardened configuration for NixOS systems";
cleanup.enable = lib.mkEnableOption "cleanup service for the system"; cleanup.enable = lib.mkEnableOption "cleanup service for the system";
auto-upgrade.enable = lib.mkEnableOption "unattended system upgrades"; auto-upgrade.enable = lib.mkEnableOption "unattended system upgrades";
}; };
@ -70,32 +69,6 @@ in
i18n.supportedLocales = lib.mkForce [ "en_US.UTF-8/UTF-8" ]; i18n.supportedLocales = lib.mkForce [ "en_US.UTF-8/UTF-8" ];
}) })
# Most of the things here are based from the Securing Debian document.
(lib.mkIf cfg.hardened-config.enable {
# Don't replace it mid-way! DON'T TURN LEFT!!!!
security.protectKernelImage = true;
# Hardened config equals hardened kernel.
boot.kernelPackages = lib.mkDefault pkgs.linuxKernel.packages.linux_6_6_hardened;
# Be STRICT! MUAHAHAHAHA!!!!
services.fail2ban = {
enable = true;
bantime-increment = {
enable = true;
factor = "4";
maxtime = "24h";
overalljails = true;
};
extraPackages = with pkgs; [ ipset ];
};
boot.kernel.sysctl = {
# Disable system console entirely. We don't need it so get rid of it.
"kernel.sysrq" = 0;
};
})
(lib.mkIf cfg.auto-upgrade.enable { (lib.mkIf cfg.auto-upgrade.enable {
system.autoUpgrade = { system.autoUpgrade = {
enable = true; enable = true;

18
modules/nixos/profiles/hardened.nix Normal file
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@ -0,0 +1,18 @@
# A extended hardened configuration from nixpkgs for desktop and server
# systems.
{ pkgs, lib, modulesPath, ... }:
{
imports = [
"${modulesPath}/profiles/hardened.nix"
];
# Don't replace it mid-way! DON'T TURN LEFT!!!!
security.protectKernelImage = true;
# Hardened config equals hardened kernel.
boot.kernelPackages = lib.mkOverride 500 pkgs.linuxKernel.packages.linux_6_6_hardened;
# Disable system console entirely. We don't need it so get rid of it.
boot.kernel.sysctl."kernel.sysrq" = 0;
}