# vim: ts=2
{...}: {
  services.fail2ban = {
    enable = true;
    maxretry = 2; # ban after 2 failures
    bantime-increment = {
      enable = true;
      rndtime = "8m";
      overalljails = true;
      multipliers = "2 4 16 128 256";
      maxtime = "72h";
    };
  };
}