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30 lines
724 B
Nix
30 lines
724 B
Nix
{ config, lib, pkgs, ... }:
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let
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cfg = config.shared-setups.server.fail2ban;
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in
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{
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options.shared-setups.server.fail2ban.enable =
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lib.mkEnableOption "typical fail2ban configuration for public-facing servers";
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config = lib.mkIf cfg.enable {
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services.fail2ban = {
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enable = true;
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bantime-increment = {
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enable = true;
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factor = "4";
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maxtime = "24h";
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overalljails = true;
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};
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extraPackages = with pkgs; [ ipset ];
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# We're going to be unforgiving with this one since we only have key
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# authentication and password authentication is disabled anyways.
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jails.sshd.settings = {
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enabled = true;
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maxretry = 1;
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};
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};
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};
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}
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