52 lines
1.6 KiB
Nix
52 lines
1.6 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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{
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options.components.network.fail2ban.enable = mkOption {
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type = lib.types.bool;
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default = false;
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};
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config = mkMerge [
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(mkIf config.components.network.fail2ban.enable {
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environment.systemPackages = [ pkgs.fail2ban pkgs.ipset ];
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services.fail2ban = {
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enable = true;
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jails = { };
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};
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})
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# custom defined jails
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# --------------------
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# https://github.com/fail2ban/fail2ban/blob/master/config/jail.conf
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(mkIf config.components.network.fail2ban.enable {
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services.fail2ban.jails.nginx-git-not-found.settings = {
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port = "http,https";
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logpath = "%(nginx_error_log)s";
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};
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environment.etc = {
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# Defines a filter that detects URL probing by reading the Nginx access log
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"fail2ban/filter.d/nginx-git-not-found.local".text = ''
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[Definition]
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failregex = src_addr="<HOST>".*response_statu="404".*host="git\.ingolf-wagner\.de"
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journalmatch = _SYSTEMD_UNIT=nginx.service
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'';
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};
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})
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(mkIf config.components.network.fail2ban.enable {
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services.fail2ban.jails.nginx-git-bad-request.settings = {
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port = "http,https";
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logpath = "%(nginx_error_log)s";
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};
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environment.etc = {
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# Defines a filter that detects URL probing by reading the Nginx access log
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"fail2ban/filter.d/nginx-git-bad-request.local".text = ''
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[Definition]
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failregex = src_addr="<HOST>".*response_statu="400".*host="git\.ingolf-wagner\.de"
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journalmatch = _SYSTEMD_UNIT=nginx.service
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'';
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};
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})
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];
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}
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