phundrak
a2b21feacc
Configuration is now held by the `.org` files. All `.nix` files are tangled from the org-mode files.
27 lines
942 B
Nix
27 lines
942 B
Nix
{
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flake.modules.nixos.hardened = {
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boot = {
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kernelModules = ["tcp_bbr"];
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kernel.sysctl = {
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"kernel.sysrq" = 0;
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"net.ipv4.icmp_echo_ignore_broadcasts" = 1;
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"net.ipv4.icmp_ignore_bogus_error_responses" = 1;
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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.conf.all.send_redirects" = 0;
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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.tcp_syncookies" = 1;
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"net.ipv4.tcp_rfc1337" = 1;
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"net.ipv4.tcp_congestion_control" = "bbr";
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"net.core.default_qdisc" = "cake";
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"net.ipv4.tcp_fastopen" = 3;
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};
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};
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};
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}
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