diff --git a/hbd b/hbd
index c650caf..ca3bb39 100755
--- a/hbd
+++ b/hbd
@@ -255,8 +255,8 @@ def pushmattermost(msg):
 #	return: None if ok, else error text
 def nsupdate(hostname, newip):
 	D = {}
-	D['domain'] = 'dy.wapanafa.org'
-	D['fqdn'] = '%s.dy.wapanafa.org' % hostname
+	D['domain'] = dyndomain
+	D['fqdn'] = dynfqdn % hostname
 	D['dnsttl'] = '5'
 	D['newip'] = newip
 	D['ts'] = time.strftime('%Y-%m-%d.%H:%M:%S', time.gmtime())
@@ -808,6 +808,8 @@ PUSHSRVS = ["all", "pushover", "mattermost" ]
 helpflag = False
 forground = False
 pushsrv = "pushover"	# mattermost
+dyndomain = "wapanafa.org"
+dynfqdn = "%s.dy.wapanafa.org"
 optlist = []
 args = []
 home = os.environ['HOME']
@@ -933,6 +935,10 @@ if f:
 			nsupdate_bin = a
 		elif o == 'pushsrv':
 			pushsrv = a
+		elif o == 'dyndomain':
+			dyndomain = a
+		elif o == 'dynfqdn':
+			dynfqdn = a
 	f.close()
 
 if len(args) != 0: