mirror of
https://github.com/ivabus/nixos
synced 2024-11-14 04:25:07 +03:00
55 lines
1.6 KiB
Nix
55 lines
1.6 KiB
Nix
{ lib, ... }:
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{
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systemd.coredump.enable = false;
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security = {
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lockKernelModules = true;
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protectKernelImage = true;
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allowSimultaneousMultithreading = lib.mkDefault false;
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forcePageTableIsolation = true;
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virtualisation.flushL1DataCache = "always";
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allowUserNamespaces = true;
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};
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boot.kernel.sysctl = {
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"kernel.sysrq" = 0;
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# Yo, WTF?
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"net.ipv4.ping_group_range" = "0 1000";
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# Picked from https://github.com/trimstray/the-practical-linux-hardening-guide/wiki/Network-stack
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"net.ipv4.icmp_ignore_bogus_error_responces" = 1;
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"net.ipv4.icmp_echo_ignore_broadcasts" = 1;
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"net.ipv4.conf.default.rp_filter" = 1;
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"net.ipv4.conf.all.rp_filter" = 1;
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"net.ipv4.conf.all.accept_source_route" = 0;
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"net.ipv6.conf.all.accept_source_route" = 0;
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"net.ipv4.conf.all.send_redirects" = 0;
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"net.ipv4.conf.default.send_redirects" = 0;
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"net.ipv4.conf.all.accept_redirects" = 0;
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"net.ipv4.conf.default.accept_redirects" = 0;
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"net.ipv4.conf.all.secure_redirects" = 0;
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"net.ipv4.conf.default.secure_redirects" = 0;
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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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"net.ipv4.ip_forward" = 1;
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"net.ipv6.conf.all.accept_ra" = 0;
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"net.ipv6.conf.default.accept_ra" = 0;
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"net.ipv4.tcp_syncookies" = 1;
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"net.ipv4.conf.default.log_martians" = 1;
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"net.ipv4.conf.all.log_martians" = 1;
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"net.ipv4.tcp_rfc1337" = 1;
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"net.ipv4.tcp_fastopen" = 3;
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"net.ipv4.tcp_congestion_control" = "bbr";
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"net.core.default_qdisc" = "cake";
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};
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boot.kernelModules = [ "tcp_bbr" ];
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}
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