diff --git a/dnsupdate.py b/dnsupdate.py
index a3cbdda..7b8defb 100644
--- a/dnsupdate.py
+++ b/dnsupdate.py
@@ -1,6 +1,6 @@
 #! /usr/bin/env python
 # dnsupdate.py
-# Updates a dynamic dns-record using a TSIG key.
+# A utility to update dynamic dns-records using a TSIG key.
 
 
 def checkerror(msg, show=""):
@@ -43,25 +43,25 @@ def getparams(msg):
                     help="Alternate config file")
   parser.add_option("--delete", 
                     action="store_true",
-                    help="Remove the host from the zone")
+                    help="Remove the host from the nameserver")
   parser.add_option("-d", "--domain", 
                     type="string",
                     help="Domain to update")
   parser.add_option("--force", 
                     action="store_true",
-                    help="Force the action")
+                    help="Force the action, do not check if update is necessary")
   parser.add_option("-i", "--ipaddress", 
                     type="string",
-                    help="IP-address of the host [auto detected]")
+                    help="Public IP-address for this host [auto detected]")
   parser.add_option("-k", "--keyname", 
                     type="string",
                     help="Name of the TSIG key")
   parser.add_option("-n", "--hostname", 
                     type="string",
-                    help="Hostname of local machine")
+                    help="Hostname to publish")
   parser.add_option("--nameserver", 
                     type="string",
-                    help="Nameserver to send queries to")
+                    help="IP-address to the nameserver")
   parser.add_option("-q", "--quiet", 
                     action="store_true",
                     help="Quit mode")
@@ -73,7 +73,7 @@ def getparams(msg):
                     help="Display config file data")
   parser.add_option("-u", "--ipurl", 
                     type="string",
-                    help="URL to ip server")
+                    help="URL to the server which detects the public IP-address")
   parser.add_option("-t", "--ttl", 
                     type="int",
                     help="TTL in seconds")