{ config, pkgs, ... }:
{
  services.nginx = {

    additionalModules = [ pkgs.nginxModules.pam ];
    enable = true;
    recommendedProxySettings = true;
    recommendedGzipSettings = true;
    recommendedOptimisation = true;
    recommendedTlsSettings = true;

    appendHttpConfig = ''
      map $remote_addr $remote_addr_anon {
               ~(?P<ip>\d+\.\d+\.\d+)\.    $ip.0;
               ~(?P<ip>[^:]+:[^:]+):       $ip::;
               # IP addresses to not anonymize
               127.0.0.1                   $remote_addr;
               ::1                         $remote_addr;
               default                     0.0.0.0;
      }
      log_format  anon_ip   '$remote_addr_anon - $remote_user [$time_local] "$request" '
                            '$status $body_bytes_sent "$http_referer" '
                            '"$http_user_agent" "$http_x_forwarded_for"';

      access_log  /var/log/nginx/access.log  anon_ip;
    '';
  };
  security.acme = {
    acceptTerms = true;
    defaults = {
      #server = "https://acme-staging-v02.api.letsencrypt.org/directory";
      email = "root@ifsr.de";
    };
  };
  security.pam.services.nginx.text = ''
    auth required ${pkgs.nss_pam_ldapd}/lib/security/pam_ldap.so
    account required ${pkgs.nss_pam_ldapd}/lib/security/pam_ldap.so
  '';
}