diff --git a/dnsupdate b/dnsupdate
index b6d75be..881584a 100755
--- a/dnsupdate
+++ b/dnsupdate
@@ -384,15 +384,29 @@ function update_iface() {
 		return 1
 	fi
 
+	if [ -f /etc/sysconfig/network ]; then
+		. /etc/sysconfig/network
+	fi
+
+	# Load global config if exists
+	[ -f /etc/dnsupdate/dnsupdate.cfg ] && . /etc/dnsupdate/dnsupdate.cfg
+
+	# Load distro global config if exists
 	[ -f /etc/sysconfig/network ] && . /etc/sysconfig/network
 
-	[ -f /etc/sysconfig/network ] && . /etc/sysconfig/network
+	if [ -f /etc/sysconfig/network-scripts/network-functions ]; then
+		. /etc/sysconfig/network-scripts/network-functions
+		# Load interface config
+		CONFIG="${1}"
+		need_config ${CONFIG}
+		source_config >/dev/null 2>&1
+	fi
 
-	# Load interface config
-	cd /etc/sysconfig/network-scripts
-	CONFIG="${1}"
-	need_config ${CONFIG}
-	source_config >/dev/null 2>&1
+	# Load dnsupdate interface specific config if exists
+	if [ -f /etc/dnsupdate/${1}.iface ]; then
+		[ "x${DDNS_DEBUG}x" != "xnox" ] && echo "Using config /etc/dnsupdate/${1}.iface"
+		. /etc/dnsupdate/${1}.iface
+	fi
 
 	if [ "x${DDNS}x" == "xnox" ] ; then
 		return 0
diff --git a/dnsupdate.cfg b/dnsupdate.cfg
new file mode 100644
index 0000000..c00d426
--- /dev/null
+++ b/dnsupdate.cfg
@@ -0,0 +1,5 @@
+# Disable DDNS for all interfaces. You can enable it for specific interface.
+DDNS=no
+
+# Enable for debugging (default: no)
+DDNS_DEBUG=no
diff --git a/dnsupdate.spec b/dnsupdate.spec
index 25a4cfb..65909c9 100644
--- a/dnsupdate.spec
+++ b/dnsupdate.spec
@@ -1,13 +1,12 @@
 Summary:        Dynamic DNS for ppp and dhclient
 Name:           dnsupdate
-Version:        0.6.0
+Version:        0.8.0
 Release:        1%{?dist}
 License:        GPLv2+
 Group:          System Environment/Daemons
 URL:            http://netst.org/pub/fedora/st/
 BuildArch:      noarch
 
-Requires:       initscripts
 Requires:       ppp
 Requires:       bind-utils
 
@@ -16,6 +15,7 @@ Source1:        dhclient-dnsupdate.sh
 Source2:        ppp-dnsupdate.sh
 Source3:        dnsupdate.cron
 Source4:        nm-dnsupdate.sh
+Source5:        dnsupdate.cfg
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
@@ -28,6 +28,7 @@ Dynamic DNS for ppp and dhclient.
 install -dm 755 $RPM_BUILD_ROOT%{_sysconfdir}
 install -dm 755 $RPM_BUILD_ROOT%{_sysconfdir}/cron.d
 install -dm 755 $RPM_BUILD_ROOT%{_bindir}
+install -dm 755 $RPM_BUILD_ROOT%{_sysconfdir}/dnsupdate/
 install -dm 755 $RPM_BUILD_ROOT%{_sysconfdir}/dhcp/
 install -dm 755 $RPM_BUILD_ROOT%{_sysconfdir}/dhcp/dhclient.d
 install -dm 755 $RPM_BUILD_ROOT%{_sysconfdir}/ppp
@@ -39,6 +40,7 @@ install -pm 755 %{SOURCE1} $RPM_BUILD_ROOT%{_sysconfdir}/dhcp/dhclient.d/dnsupda
 install -pm 755 %{SOURCE2} $RPM_BUILD_ROOT%{_sysconfdir}/ppp/ip-up.d/dnsupdate.sh
 install -pm 644 %{SOURCE3} $RPM_BUILD_ROOT%{_sysconfdir}/cron.d/dnsupdate
 install -pm 644 %{SOURCE4} $RPM_BUILD_ROOT%{_sysconfdir}/NetworkManager/dispatcher.d
+install -pm 644 %{SOURCE5} $RPM_BUILD_ROOT%{_sysconfdir}/dnsupdate/dnsupdate.cfg
 
 %clean
 %{__rm} -rf %{buildroot}
@@ -52,6 +54,7 @@ install -pm 644 %{SOURCE4} $RPM_BUILD_ROOT%{_sysconfdir}/NetworkManager/dispatch
 %{_sysconfdir}/dhcp/dhclient.d/dnsupdate.sh
 %{_sysconfdir}/ppp/ip-up.d/dnsupdate.sh
 %{_sysconfdir}/cron.d/dnsupdate
+%config(noreplace) %attr(0644,root,root) %{_sysconfdir}/dnsupdate/dnsupdate.cfg
 
 %changelog
 * Mon Jul 27 2015 Zoran Pericic <zpericic@netst.org> - 0.5.2-1