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Chris Kruining 2025-07-24 09:57:59 +02:00
parent 30501b7fac
commit ef6c049068
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36 changed files with 843 additions and 842 deletions
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31
_modules/system/networking/default.nix
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@ -1,31 +0,0 @@
{ config, options, lib, pkgs, ... }: let
inherit (lib.modules) mkDefault;
inherit (lib.options) mkOption;
cfg = config.modules.networking;
in {
options.modules.networking = {
wifi.backend = mkOption {
type = with lib.types; enum [ "wpa_supplicant" "iwd" ];
default = "wpa_supplicant";
example = "wpa_supplicant";
description = "set the backend used for wifi wpa_supplicant by default";
};
};
config = {
systemd.services.NetworkManager-wait-online.enable = false;
networking = {
enableIPv6 = true;
useDHCP = mkDefault true;
firewall.enable = true;
networkmanager = {
enable = mkDefault true;
wifi.backend = mkDefault config.modules.networking.wifi.backend;
};
};
};
}

77
_modules/system/security.nix
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@ -1,77 +0,0 @@
{ inputs, pkgs, ... }:
{
imports = [
inputs.sops-nix.nixosModules.sops
];
config = {
environment.systemPackages = with pkgs; [
bitwarden
sops
];
sops = {
defaultSopsFile = ../../secrets/secrets.yaml;
defaultSopsFormat = "yaml";
age.keyFile = "/home/";
};
security = {
sudo.execWheelOnly = true;
acme.acceptTerms = true;
polkit.enable = true;
pam = {
u2f = {
enable = true;
settings.cue = true;
};
};
};
networking.firewall.enable = true;
programs.gnupg.agent.enable = true;
boot = {
loader.systemd-boot = {
editor = false;
configurationLimit = 50;
};
kernelModules = [ "tcp_bbr" ];
kernel.sysctl = {
## TCP hardening
# Prevent bogus ICMP errors from filling up logs.
"net.ipv4.icmp_ignore_bogus_error_responses" = 1;
# Reverse path filtering causes the kernel to do source validation of
# packets received from all interfaces. This can mitigate IP spoofing.
"net.ipv4.conf.default.rp_filter" = 1;
"net.ipv4.conf.all.rp_filter" = 1;
# Do not accept IP source route packets (we're not a router)
"net.ipv4.conf.all.accept_source_route" = 0;
"net.ipv6.conf.all.accept_source_route" = 0;
# Don't send ICMP redirects (again, we're on a router)
"net.ipv4.conf.all.send_redirects" = 0;
"net.ipv4.conf.default.send_redirects" = 0;
# Refuse ICMP redirects (MITM mitigations)
"net.ipv4.conf.all.accept_redirects" = 0;
"net.ipv4.conf.default.accept_redirects" = 0;
"net.ipv4.conf.all.secure_redirects" = 0;
"net.ipv4.conf.default.secure_redirects" = 0;
"net.ipv6.conf.all.accept_redirects" = 0;
"net.ipv6.conf.default.accept_redirects" = 0;
# Protects against SYN flood attacks
"net.ipv4.tcp_syncookies" = 1;
# Incomplete protection again TIME-WAIT assassination
"net.ipv4.tcp_rfc1337" = 1;
## TCP optimization
# Enable TCP Fast Open for incoming and outgoing connections
"net.ipv4.tcp_fastopen" = 3;
# Bufferbloat mitigations + slight improvement in throughput & latency
"net.ipv4.tcp_congestion_control" = "bbr";
"net.core.default_qdisc" = "cake";
};
};
};
}

49
_modules/system/theming.nix
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@ -1,49 +0,0 @@
{ inputs, config, lib, pkgs, ... }:
let
inherit (lib) mkIf;
inherit (lib.options) mkEnableOption;
cfg = config.modules.theming;
in
{
imports = [
inputs.stylix.nixosModules.stylix
];
options.modules.theming = {
enable = mkEnableOption "enable theming";
};
config = mkIf cfg.enable {
stylix = {
enable = true;
autoEnable = true;
# base16Scheme = "${pkgs.base16-schemes}/share/themes/${cfg.theme}.yaml";
# image = ./${cfg.theme}.jpg;
# polarity = cfg.polarity;
fonts = {
serif = {
package = pkgs.dejavu_fonts;
name = "DejaVu Serif";
};
sansSerif = {
package = pkgs.dejavu_fonts;
name = "DejaVu Sans";
};
monospace = {
package = pkgs.nerd-fonts.jetbrains-mono;
name = "JetBrainsMono Nerd Font Mono";
};
emoji = {
package = pkgs.noto-fonts-emoji;
name = "Noto Color Emoji";
};
};
};
};
}