diff --git a/README.md b/README.md
index d5cdefa..525768a 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,7 @@ Configuration
 * manage Nagios main contacts through Puppet exports. Additional contacts can be created through external Puppet rules via define, to avoid having to alter the module code.
 * manage Nagios main contactgroups through Puppet exports. Additional contact groups can be created through external Puppet rules via define, to avoid having to alter the module code.
 * manage Nagios main hostgroups through Puppet exports. Additional host groups can be created through external Puppet rules via define, to avoid having to alter the module code.
+* manage Nagios main servicegroups through Puppet exports. Additional service groups can be created through external Puppet rules via define, to avoid having to alter the module code.
 * configure NRPE on clients (optional)
 * configure firewall (optional)
 * configure selinux policies (optional)
diff --git a/manifests/nagios/objects/add_contactgroups_rules.pp b/manifests/nagios/objects/add_contactgroups_rules.pp
index a1d83fc..418a40c 100644
--- a/manifests/nagios/objects/add_contactgroups_rules.pp
+++ b/manifests/nagios/objects/add_contactgroups_rules.pp
@@ -56,11 +56,5 @@ class cd_nagios::nagios::objects::add_contactgroups_rules (
       content   =>  template($ng_cntctgrps_head_erb),
       order     =>  '000',
     }
-
-    cd_nagios::nagios::objects::add_contactgroups { 'example_group':
-      ng_contactgroup_name      =>  'example_group',
-      ng_contactgroup_alias     =>  'Example Group',
-      ng_contactgroup_register  =>  '1',
-    }
   }
 }
diff --git a/manifests/nagios/objects/add_hostgroup_rules.pp b/manifests/nagios/objects/add_hostgroup_rules.pp
index 8f884a3..740c1bb 100644
--- a/manifests/nagios/objects/add_hostgroup_rules.pp
+++ b/manifests/nagios/objects/add_hostgroup_rules.pp
@@ -55,10 +55,5 @@ class cd_nagios::nagios::objects::add_hostgroup_rules (
       content   =>  template($ng_tgt_hostgrp_head_erb),
       order     =>  '000',
     }
-
-   cd_nagios::nagios::objects::add_hostgroups { 'example_hostgroup':
-     ng_hostgroup_name   =>  'example_hostgroup',
-     ng_hostgroup_alias  =>  'Example Hostgroup',
-   }
   }
 }
diff --git a/manifests/nagios/objects/add_servicegroup_rules.pp b/manifests/nagios/objects/add_servicegroup_rules.pp
new file mode 100644
index 0000000..208286e
--- /dev/null
+++ b/manifests/nagios/objects/add_servicegroup_rules.pp
@@ -0,0 +1,64 @@
+## cd_nagios::nagios::objects::add_servicegroup_rules.pp
+# Module name: cd_nagios
+# Author: Arne Teuke (arne_teuke@ConfDroid.com)
+# # License:
+#    This file is part of cd_nagios.
+#
+#    cd_nagios is used for providing automatic configuration of Nagios
+#    Copyright (C) 2016  ConfDroid (copyright@ConfDroid.com)
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# @summary  Class manages /etc/nagios_conf.d/nagios_servicegroups_add.cfg and
+#    additional servicegroups through external Puppet rules via define.
+# @example
+#   cd_nagios::nagios::objects::add_servicegroups { 'example_servicegroup':
+#     ng_servicegroup_name   =>  'example_servicegroup',
+#     ng_servicegroup_alias  =>  'Example Servicegroup',
+#   }
+################################################################################
+class cd_nagios::nagios::objects::add_servicegroup_rules (
+
+
+) inherits cd_nagios::params {
+
+  if $::fqdn == $ng_nagios_server {
+
+    # manage /etc/nagios_conf.d/nagios_servicegroups_add.cfg
+
+    concat { $ng_tgt_servicegroup_add:
+      ensure    =>  present,
+      path      =>  $ng_tgt_servicegroup_add,
+      owner     =>  $ng_user,
+      group     =>  $ng_user,
+      mode      =>  '0640',
+      selrange  =>  s0,
+      selrole   =>  object_r,
+      seltype   =>  nagios_etc_t,
+      seluser   =>  system_u,
+      notify    =>  Service[$ng_service],
+    }
+
+    # manage file header
+
+    concat::fragment { 'servicegroups_header':
+      target    =>  $ng_tgt_servicegroup_add,
+      content   =>  template($ng_tgt_svcgrp_head_erb),
+      order     =>  '000',
+    }
+
+    cd_nagios::nagios::objects::add_servicegroups { 'example_servicegroup':
+      ng_servicegroup_name   =>  'example_servicegroup',
+      ng_servicegroup_alias  =>  'Example Servicegroup',
+    }
+  }
+}
diff --git a/manifests/nagios/objects/add_servicegroups.pp b/manifests/nagios/objects/add_servicegroups.pp
new file mode 100644
index 0000000..77f9314
--- /dev/null
+++ b/manifests/nagios/objects/add_servicegroups.pp
@@ -0,0 +1,48 @@
+## cd_nagios::nagios::objects::add_servicegroups.pp
+# Module name: cd_nagios
+# Author: Arne Teuke (arne_teuke@ConfDroid.com)
+# # License:
+#    This file is part of cd_nagios.
+#
+#    cd_nagios is used for providing automatic configuration of Nagios
+#    Copyright (C) 2016  ConfDroid (copyright@ConfDroid.com)
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>
+# @summary  define populates /etc/nagios/conf.d/nagios_servicegroups_add through
+#   extermal Puppet rules.
+# @example
+#   cd_nagios::nagios::objects::add_servicegroups { 'example_servicegroup':
+#     ng_servicegroup_name   =>  'example_servicegroup',
+#     ng_servicegroup_alias  =>  'Example servicegroup',
+#   }
+###############################################################################
+define cd_nagios::nagios::objects::add_servicegroups (
+
+$ng_servicegroup_name      = undef,
+$ng_servicegroup_alias     = undef,
+$ng_servicegroup_register  = '1',
+
+) {
+
+$ng_nagios_server         = $::cd_nagios::params::ng_nagios_server
+$ng_tgt_servicegroup_add  = $::cd_nagios::params::ng_tgt_servicegroup_add
+$ng_tgt_svcgrp_rule_erb   = $::cd_nagios::params::ng_tgt_svcgrp_rule_erb
+
+  if $::fqdn == $ng_nagios_server {
+
+    concat::fragment { $name:
+      target    =>  $ng_tgt_servicegroup_add,
+      content   =>  template($ng_tgt_svcgrp_rule_erb),
+    }
+  }
+}
diff --git a/manifests/nagios/objects/config.pp b/manifests/nagios/objects/config.pp
index 31713ce..ff1953b 100644
--- a/manifests/nagios/objects/config.pp
+++ b/manifests/nagios/objects/config.pp
@@ -34,6 +34,7 @@ class cd_nagios::nagios::objects::config (
     require cd_nagios::nagios::objects::add_contactgroups_rules
     require cd_nagios::nagios::objects::hostgroups
     require cd_nagios::nagios::objects::add_hostgroup_rules
-
+    require cd_nagios::nagios::objects::servicegroups
+    require cd_nagios::nagios::objects::add_servicegroup_rules
   }
 }
diff --git a/manifests/nagios/objects/servicegroups.pp b/manifests/nagios/objects/servicegroups.pp
new file mode 100644
index 0000000..a73f0e2
--- /dev/null
+++ b/manifests/nagios/objects/servicegroups.pp
@@ -0,0 +1,70 @@
+## cd_nagios::nagios::objects::servicegroups.pp
+# Module name: cd_nagios
+# Author: Arne Teuke (arne_teuke@ConfDroid.com)
+# # License:
+#    This file is part of cd_nagios.
+#
+#    cd_nagios is used for providing automatic configuration of Nagios
+#    Copyright (C) 2016  ConfDroid (copyright@ConfDroid.com)
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# @summary  Class manages basic hostgroups known to NAGIOS through Puppet
+#   exports,  and populates /etc/nagios/conf.d/nagios_base_hostgroups.cfg.
+################################################################################
+class cd_nagios::nagios::objects::servicegroups (
+
+
+) inherits cd_nagios::params {
+
+  if $::fqdn == $ng_nagios_server {
+
+    # network services
+
+    @@nagios_servicegroup { 'network-services':
+      ensure            =>  present,
+      servicegroup_name =>  'network-services',
+      alias             =>  'Network Services',
+      owner             =>  $ng_user,
+      group             =>  $ng_user,
+      mode              =>  '0640',
+      register          =>  '1',
+      target            =>  $ng_target_svcgrp_base,
+    }
+
+    # linux services
+
+    @@nagios_servicegroup { 'linux-services':
+      ensure            =>  present,
+      servicegroup_name =>  'linux-services',
+      alias             =>  'Linux Services',
+      owner             =>  $ng_user,
+      group             =>  $ng_user,
+      mode              =>  '0640',
+      register          =>  '1',
+      target            =>  $ng_target_svcgrp_base,
+    }
+
+    # database services
+
+    @@nagios_servicegroup { 'database-services':
+      ensure            =>  present,
+      servicegroup_name =>  'database-services',
+      alias             =>  'Database Services',
+      owner             =>  $ng_user,
+      group             =>  $ng_user,
+      mode              =>  '0640',
+      register          =>  '1',
+      target            =>  $ng_target_svcgrp_base,
+    }
+  }
+}
diff --git a/manifests/params.pp b/manifests/params.pp
index 4e33fd5..b5832b4 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -892,6 +892,8 @@ $ng_check_workers           = '',
 $ng_host_down_svc_checks    = '0',
 $ng_enable_load_ctl_options = false,
 $ng_loadctl_options         = 'jobs_max=100;backoff_limit=10;rampup_change=5',
+$ng_nagios_service_cmd      = 'check_nagios!/var/log/nagios/status.dat!5!/usr/sbin/nagios',
+
 ) {
 
 # installation section
@@ -973,9 +975,12 @@ $ng_target_hostdep        = "${ng_conf_d_dir}/nagios_hostdependency.cfg"
 $ng_target_hostesc        = "${ng_conf_d_dir}/nagios_hostescalation.cfg"
 $ng_target_hostext        = "${ng_conf_d_dir}/nagios_hostextinfo.cfg"
 $ng_target_service        = "${ng_conf_d_dir}/nagios_service.cfg"
-$ng_target_servicegroup   = "${ng_conf_d_dir}/nagios_servicegroup.cfg"
-$ng_target_base_contact   = "${ng_conf_d_dir}/nagios_base_contact.cfg"
-$ng_target_add_contact    = "${ng_conf_d_dir}/nagios_add_contact.cfg"
+$ng_target_svcgrp_base    = "${ng_conf_d_dir}/nagios_servicegroups_base.cfg"
+$ng_tgt_servicegroup_add  = "${ng_conf_d_dir}/nagios_servicegroups_add.cfg"
+$ng_tgt_svcgrp_head_erb   = 'cd_nagios/nagios/svcgroups_cfg_head.erb'
+$ng_tgt_hostgrp_rule_erb  = 'cd_nagios/nagios/svcgroups_cfg_rule.erb'
+$ng_target_base_contact   = "${ng_conf_d_dir}/nagios_contact_base.cfg"
+$ng_target_add_contact    = "${ng_conf_d_dir}/nagios_contact_add.cfg"
 $ng_contacts_head_erb     = 'cd_nagios/nagios/contacts_cfg_head.erb'
 $ng_contacts_rule_erb     = 'cd_nagios/nagios/contacts_cfg_rule.erb'
 $ng_tgt_contactgroup_base = "${ng_conf_d_dir}/nagios_contactgroup_base.cfg"
diff --git a/manifests/server/service.pp b/manifests/server/service.pp
index 6df3ab6..949d951 100644
--- a/manifests/server/service.pp
+++ b/manifests/server/service.pp
@@ -54,13 +54,13 @@ class cd_nagios::server::service (
       notify              =>  Service ['nagios'],
   }
 
-    @@nagios_service { "check_nagios_localhost":
-        check_command       => 'check_nagios!/var/log/nagios/status.dat!5!/usr/sbin/nagios',
+    @@nagios_service { 'check_nagios_localhost':
+        check_command       => $ng_nagios_service_cmd,
         use                 => 'generic-service',
         host_name           => 'localhost',
         notification_period => '24x7',
-        service_description =>  'localhost_nagios_service',
-        target              =>  $ng_target_service,
+        service_description => 'localhost_nagios_service',
+        target              => $ng_target_service,
         owner               => $ng_user,
         group               => $ng_user,
         mode                => '0640',
diff --git a/templates/nagios/svcgroups_cfg_head.erb b/templates/nagios/svcgroups_cfg_head.erb
new file mode 100644
index 0000000..7612129
--- /dev/null
+++ b/templates/nagios/svcgroups_cfg_head.erb
@@ -0,0 +1,5 @@
+###############################################################################
+##########        nagios_servicegroups_add.cfg created by Puppet     ##########
+##########            manual changes are overwritten!                ##########
+###############################################################################
+# rules are created below by external puppet rules.
diff --git a/templates/nagios/svcgroups_cfg_rule.erb b/templates/nagios/svcgroups_cfg_rule.erb
new file mode 100644
index 0000000..4d5e62b
--- /dev/null
+++ b/templates/nagios/svcgroups_cfg_rule.erb
@@ -0,0 +1,6 @@
+
+define servicegroup {
+  servicegroup_name   <%= @ng_servicegroup_name %>
+  alias               <%= @ng_servicegroup_alias %>
+  register            <%= @ng_servicegroup_register %>
+  }