diff --git a/README.md b/README.md
index a9cdfee..69eddec 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,13 @@ page), and credentials for fastd and openvpn.
 Example puppet code (save e.g. as `/etc/puppet/gw.pp`):
 
 ```
+
+class { 'ff_gw::sysadmin':
+    # both optional, used for FFHH monitoring:
+    zabbixserver => 'argos.mschuette.name',
+    muninserver  => '78.47.49.236',
+}
+
 class { 'ff_gw':
     # user accounts:
     accounts => {
diff --git a/manifests/sysadmin.pp b/manifests/sysadmin.pp
index 807e7fe..fc06b7f 100644
--- a/manifests/sysadmin.pp
+++ b/manifests/sysadmin.pp
@@ -1,5 +1,5 @@
 # kitchen sink class for various small settings
-class ff_gw::sysadmin {
+class ff_gw::sysadmin($zabbixserver = '127.0.0.1', $muninserver = '127.0.0.1') {
 
   # use Hiera as a Puppet data source
   file {
@@ -62,8 +62,8 @@ class ff_gw::sysadmin {
   file { '/etc/zabbix/zabbix_agentd.d/argos_monitoring.conf':
     ensure  => file,
     content => "# managed by puppet
-Server=argos.mschuette.name
-ServerActive=argos.mschuette.name
+Server=${zabbixserver}
+ServerActive=${zabbixserver}
 HostnameItem=${::hostname}
 ";
   }
@@ -106,7 +106,7 @@ ignore_file \.pod$
 port 4949
 
 host_name <%= @fqdn %>
-cidr_allow 78.47.49.236/32
+cidr_allow <%= @muninserver %>/32
 host <%= @ipaddress_eth0 %>
 ');
     '/usr/share/munin/plugins/vnstat_':