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|
{
pkgs,
lib,
config,
...
}:
{
imports = [
./grub.nix
./systemd-boot.nix
];
boot = {
crashDump.enable = false;
consoleLogLevel = 3;
loader = {
timeout = 5;
generationsDir.copyKernels = true;
efi = {
canTouchEfiVariables = true;
efiSysMountPoint = "/boot";
};
};
kernelPackages = pkgs.linuxPackages_zen;
blacklistedKernelModules = [ "nouveau" ];
extraModulePackages = with config.boot.kernelPackages; [
v4l2loopback
zenpower
];
# initrd.availableKernelModules = [
# "aesni_intel"
# "cryptd"
# "usb_storage"
# ];
kernelModules = [
"v4l2loopback"
"tls"
"tcp_bbr"
"uhid"
"amd-pstate"
"zenpower"
"msr"
];
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;
# And other stuff
"net.ipv4.conf.all.log_martians" = true;
"net.ipv4.conf.default.log_martians" = true;
"net.ipv4.icmp_echo_ignore_broadcasts" = true;
"net.ipv6.conf.default.accept_ra" = 0;
"net.ipv6.conf.all.accept_ra" = 0;
"net.ipv4.tcp_timestamps" = 0;
# TCP optimization
# TCP Fast Open is a TCP extension that reduces network latency by packing
# data in the sender’s initial TCP SYN. Setting 3 = enable TCP Fast Open for
# both 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";
"net.ipv6.conf.enp42s0.disable_ipv6" = true;
"net.ipv6.conf.wlp4s0.disable_ipv6" = true;
"net.ipv6.conf.tun0.disable_ipv6" = true;
};
kernelParams = [
"nvidia-drm.fbdev=1"
"nvidia.NVreg_PreserveVideoMemoryAllocations=1"
"usbcore.autosuspend=-1"
"iommu=pt"
"threadirqs"
"btusb"
"amd_iommu=on"
"luks.options=timeout=0"
"rd.luks.options=timeout=0"
];
};
}
|