reidlab/nix-dotfiles
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Compare commits

base: reidlab:37c6c3371e63ac6f9c033b328254da51f74ce9fa
Branches Tags
reidlab:main
..
compare: reidlab:3f3f7706227deed781f561f65c06f320bf56484e
Branches Tags
reidlab:main

No commits in common. "37c6c3371e63ac6f9c033b328254da51f74ce9fa" and "3f3f7706227deed781f561f65c06f320bf56484e" have entirely different histories.
37c6c3371e ... 3f3f770622

4 changed files with 75 additions and 76 deletions
Download patch file Download diff file Expand all files Collapse all files

2
default.nix
View file

@ -24,7 +24,7 @@ in {
boot = {
kernelPackages = mkDefault pkgs.linuxPackages_latest;
kernelParams = [ "pcie_aspm.policy=performance" ];
kernelParams = [ "pci_aspm.policy=performance" ];
};
# configure keymap in x11

1
hosts/flubber-machine/hardware.nix
View file

@ -3,6 +3,7 @@
{
imports =
[
inputs.hardware.nixosModules.gigabyte-b550
inputs.hardware.nixosModules.common-cpu-amd
inputs.hardware.nixosModules.common-gpu-amd
inputs.hardware.nixosModules.common-pc-ssd

9
hosts/flubber-machine/omen-30l-gt13-1xxx.nix
View file

@ -11,8 +11,9 @@
environment.systemPackages = with pkgs; [ amdgpu_top ];
# fix audio issues: https://forums.linuxmint.com/viewtopic.php?t=445461
boot.extraModprobeConfig = ''
options snd_hda_intel model=generic
'';
# fix audio issues
# Is this even needed. I'm losing my mindddddd
# https://forums.linuxmint.com/viewtopic.php?t=445461
# https://help.ubuntu.com/community/HdaIntelSoundHowto
boot.extraModprobeConfig = ''options snd_hda_intel model=generic'';
}

139
modules/security.nix
View file

@ -8,85 +8,82 @@ in {
useDoas = mkEnableOption "use opendoas instead of sudo";
};
config = mkMerge [
{
boot = {
tmp.useTmpfs = lib.mkDefault true;
tmp.cleanOnBoot = lib.mkDefault (!config.boot.tmp.useTmpfs);
config = mkIf cfg.enable {
boot = {
tmp.useTmpfs = lib.mkDefault true;
tmp.cleanOnBoot = lib.mkDefault (!config.boot.tmp.useTmpfs);
# disable kernel parameter editing on boot
loader.systemd-boot.editor = false;
# disable kernel parameter editing on boot
loader.systemd-boot.editor = false;
kernel.sysctl = {
# magic sysrq key, allows low-level commands through keyboard input
"kernel.sysrq" = 0;
kernel.sysctl = {
# magic sysrq key, allows low-level commands through keyboard input
"kernel.sysrq" = 0;
## TCP hardening
# prevent bogus ICMP errors from filling up logs
"net.ipv4.icmp_ignore_bogus_error_responses" = 1;
# do not accept IP source packets (we are 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 not 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 against TIME-WAIT assassination
"net.ipv4.tcp_rfc1337" = 1;
## TCP hardening
# prevent bogus ICMP errors from filling up logs
"net.ipv4.icmp_ignore_bogus_error_responses" = 1;
# do not accept IP source packets (we are 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 not 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 against TIME-WAIT assassination
"net.ipv4.tcp_rfc1337" = 1;
## TCP optimization
# TCP fastopen
"net.ipv4.tcp_fastopen" = 3;
# bufferbloat mitigations + improvement in throughput and latency
"net.ipv4.tcp_congestion_control" = "bbr";
"net.core.default_qdisc" = "cake";
};
kernelModules = [ "tcp_bbr" ];
## TCP optimization
# TCP fastopen
"net.ipv4.tcp_fastopen" = 3;
# bufferbloat mitigations + improvement in throughput and latency
"net.ipv4.tcp_conjestion_control" = "bbr";
"net.core.default_qdisc" = "cake";
};
kernelModules = [ "tcp_bbr" ];
};
security = {
# prevents replacing the kernel without a reboot
protectKernelImage = true;
# rtkit allows unprivileged processes to use realtime scheduling
# polkit allows unprivileged processes to speak to privileged processes (ex. nmtui, reboot)
rtkit.enable = true;
polkit.enable = true;
};
security = {
# prevents replacing the kernel without a reboot
protectKernelImage = true;
# rtkit allows unprivileged processes to use realtime scheduling
# polkit allows unprivileged processes to speak to privileged processes (ex. nmtui, reboot)
rtkit.enable = true;
polkit.enable = true;
};
# personal computer? no firewall ty :3
networking.firewall.enable = false;
# personal computer? no firewall ty :3
networking.firewall.enable = false;
services.usbguard = {
IPCAllowedUsers = [ "root" "${env.mainUser}" ];
presentDevicePolicy = "allow";
rules = ''
allow with-interface equals { 08:*:* }
services.usbguard = {
IPCAllowedUsers = [ "root" "${env.mainUser}" ];
presentDevicePolicy = "allow";
rules = ''
allow with-interface equals { 08:*:* }
# reject devices with suspicious combination of interfaces (ex. mass storage + keyboard)
reject with-interface all-of { 08:*:* 03:00:* }
reject with-interface all-of { 08:*:* 03:01:* }
reject with-interface all-of { 08:*:* e0:*:* }
reject with-interface all-of { 08:*:* 02:*:* }
'';
};
# reject devices with suspicious combination of interfaces (ex. mass storage + keyboard)
reject with-interface all-of { 08:*:* 03:00:* }
reject with-interface all-of { 08:*:* 03:01:* }
reject with-interface all-of { 08:*:* e0:*:* }
reject with-interface all-of { 08:*:* 02:*:* }
'';
};
services.fwupd.enable = true;
}
(mkIf cfg.useDoas {
security.sudo.enable = false;
security.doas.enable = true;
security.doas.extraRules = [
{ users = [ config.user.name ]; noPass = true; persist = false; keepEnv = true; }
];
environment.systemPackages = with pkgs; [ doas-sudo-shim ];
})
];
services.fwupd.enable = true;
} // (mkIf cfg.useDoas {
security.sudo.enable = false;
security.doas.enable = true;
security.doas.extraRules = [
{ users = [ config.user.name ]; noPass = true; persist = false; keepEnv = true; }
];
environment.systemPackages = with pkgs; [ doas-sudo-shim ];
});
}