diff --git a/README.md b/README.md
index f060122..869e2d3 100644
--- a/README.md
+++ b/README.md
@@ -8,4 +8,11 @@ This script requires an ini-style config file named `config.conf` for icinga bas
 baseurl = https://example.org:5665
 username = root
 password = foobar
+
+[filters]
+services = "checks_with_sms" in service.groups
+hosts = "checks_with_sms" in host.groups
+
+[output]
+filename = index.html
 ```
diff --git a/services.py b/service.py
similarity index 95%
rename from services.py
rename to service.py
index a878d76..ba813d5 100644
--- a/services.py
+++ b/service.py
@@ -20,7 +20,7 @@ def do_api_calls(config):
     requestbody = {
         "attrs": [ "name", "state", "last_check_result", "host_name", "display_name" ],
         "joins": [ "host.name", "host.state", "host.last_check_result" ],
-        "filter": "\"checks_with_sms\" in service.groups",
+        "filter": config['filters']['services'],
     }
     r = requests.get(request_url,
         headers=headers,
@@ -32,7 +32,7 @@ def do_api_calls(config):
         data['services'] = r.json()
     else:
         r.raise_for_status()
-    print(json.dumps(data['services']))
+    
     # hosts
     request_url = "{}/v1/objects/hosts".format(config['icinga2_api']['baseurl'])
     headers = {
@@ -41,7 +41,7 @@ def do_api_calls(config):
     }
     requestbody = {
         "attrs": [ "name", "state" ],
-        "filter": "\"checks_with_sms\" in host.groups",
+        "filter": config['filters']['hosts'],
     }
     r = requests.get(request_url,
         headers=headers,
@@ -158,7 +158,7 @@ def render_service_details(data):
         html_output = html_output + render_services_per_host(host, data)
     return html_output
 
-def render_index_html(host_summary, service_details):
+def render_index_html(filename, host_summary, service_details):
     with open("template.html", "r") as f:
         htmlTemplate = f.read()
 
@@ -167,7 +167,7 @@ def render_index_html(host_summary, service_details):
         services = service_details
     )
 
-    with open("index.html", "w") as f:
+    with open(filename, "w") as f:
         f.write(htmlOutput)
 
 
@@ -183,7 +183,7 @@ def main():
     data = do_api_calls(config)
     host_summary = render_hosts(data)
     service_details = render_service_details(data)
-    render_index_html(host_summary, service_details)
+    render_index_html(config['output']['filename'], host_summary, service_details)
 
 if __name__ == "__main__":
     main()