diff --git a/perl-xCAT/xCAT/Utils.pm b/perl-xCAT/xCAT/Utils.pm
index 9e96227d5..7d7e08196 100644
--- a/perl-xCAT/xCAT/Utils.pm
+++ b/perl-xCAT/xCAT/Utils.pm
@@ -4909,6 +4909,19 @@ sub osver
         $ver =~ tr/\.//;
         $ver =~ s/[^0-9]*([0-9]+).*/$1/;
     }
+    elsif (-f "/etc/lsb-release")#ubuntu
+    {
+
+        $os = "ubuntu";
+        open($relfile,"<","/etc/lsb-release");
+        my @text = <$relfile>;
+        close($relfile);
+        foreach (@text){
+        	if ( $_ =~ /DISTRIB_RELEASE=(\S+)/ ) {
+        		$ver = $1;
+        	}
+        }
+    }
     $os = "$os" . "$ver";
     return ($os);
 }
diff --git a/xCAT-server/lib/xcat/plugins/AAsn.pm b/xCAT-server/lib/xcat/plugins/AAsn.pm
index c2bc67197..fc7fa7df9 100644
--- a/xCAT-server/lib/xcat/plugins/AAsn.pm
+++ b/xCAT-server/lib/xcat/plugins/AAsn.pm
@@ -643,7 +643,13 @@ sub setup_DHCP
     ${"xCAT_plugin::" . $modname . "::"}{process_request}
       ->($cmdref, \&xCAT::Client::handle_response);
 
-    my $rc = xCAT::Utils->startService("dhcpd");
+
+	my $distro = xCAT::Utils->osver();
+	my $serv = "dhcpd";
+	if ( $distro =~ /ubuntu*/ ){
+		$serv = "dhcp3-server";	
+	}
+    my $rc = xCAT::Utils->startService($serv);
     if ($rc != 0)
     {
         return 1;
@@ -732,8 +738,14 @@ sub setup_DNS
     system("$XCATROOT/sbin/makenamed.conf");
 
     # turn DNS on
-
-    my $rc = xCAT::Utils->startService("named");
+	
+	my $distro = xCAT::Utils->osver();
+	my $serv = "named";
+	if ( $distro =~ /ubuntu*/ ){
+		$serv = "bind9";	
+	}
+	
+    my $rc = xCAT::Utils->startService($serv);
     if ($rc != 0)
     {
         return 1;
diff --git a/xCAT-server/lib/xcat/plugins/ddns.pm b/xCAT-server/lib/xcat/plugins/ddns.pm
index 6d1969065..b1f217189 100644
--- a/xCAT-server/lib/xcat/plugins/ddns.pm
+++ b/xCAT-server/lib/xcat/plugins/ddns.pm
@@ -14,9 +14,15 @@ use Fcntl qw/:flock/;
 #This is a rewrite of DNS management using nsupdate rather than direct zone mangling
 
 my $callback;
-my $service="named";
+my $distro = xCAT::Utils->osver();
 
 
+my $service="named";
+# is this ubuntu ?
+if ( $distro =~ /ubuntu*/ ){
+	$service = "bind9";	
+}
+
 sub handled_commands
 {
     return {"makedns" => "site:dnshandler"};
@@ -461,7 +467,7 @@ sub process_request {
             }
             else
             {
-                system("/sbin/service $service stop"); #named may otherwise hold on to stale journal filehandles
+                system("service $service stop"); #named may otherwise hold on to stale journal filehandles
             }
             my $conf = get_conf();
             unlink $conf;
@@ -486,8 +492,8 @@ sub process_request {
         }
         else
         {
-            system("/sbin/service $service stop");
-            system("/sbin/service $service start");
+            system("service $service stop");
+            system("service $service start");
         }
             xCAT::SvrUtils::sendmsg("Restarting named complete", $callback);
         }
@@ -526,7 +532,11 @@ sub get_zonesdir {
 
 sub get_conf {
     my $conf="/etc/named.conf";
-
+	# is this ubuntu ?
+	if ( $distro =~ /ubuntu*/ ){
+		$conf="/etc/bind/named.conf";
+	}
+	
     my $sitetab = xCAT::Table->new('site');
 
     unless ($sitetab)
@@ -571,7 +581,11 @@ sub get_dbdir {
         # Temp fix for bugzilla 73119
         chown(scalar(getpwnam('root')),scalar(getgrnam('named')),"/var/lib/named");
         return "/var/lib/named/";
-    } else {
+    } 
+    elsif (-d "/var/lib/bind") {
+        return "/var/lib/bind/";
+    } 
+    else {
         mkpath "/var/named/";
         chown(scalar(getpwnam('named')),scalar(getgrnam('named')),"/var/named");
         return "/var/named/";
diff --git a/xCAT-server/sbin/makenamed.conf b/xCAT-server/sbin/makenamed.conf
index 928b76054..bbfb7b38a 100755
--- a/xCAT-server/sbin/makenamed.conf
+++ b/xCAT-server/sbin/makenamed.conf
@@ -7,6 +7,11 @@ if [ -f /etc/SuSE-release ]; then
   DIRECTORY=/var/lib/named 
 fi
 FILE=/etc/named.conf
+
+if [ -f /etc/lsb-release ]; then
+  FILE=/etc/bind/named.conf
+fi
+
 #unalias cp
 if [ -f $FILE ]; then
   cp -f $FILE ${FILE}.ORIG