diff --git a/cloudbaseinit/osutils/windows.py b/cloudbaseinit/osutils/windows.py
index 5630d212..c83cb1ae 100644
--- a/cloudbaseinit/osutils/windows.py
+++ b/cloudbaseinit/osutils/windows.py
@@ -933,28 +933,7 @@ def _fix_network_adapter_dhcp(interface_name,
 
     @staticmethod
     def _set_interface_dns(interface_name, dnsnameservers):
-        # Import here to avoid loading errors on Windows versions where MI is
-        # not available
-        import mi
-
-        conn = wmi.WMI(moniker='//./root/standardcimv2')
-        # Requires Windows >= 6.2
-        dns_client = conn.MSFT_DnsClientServerAddress(
-            InterfaceAlias=interface_name)
-        if not len(dns_client):
-            raise exception.ItemNotFoundException(
-                'Network interface with name "%s" not found' %
-                interface_name)
-        dns_client = dns_client[0]
-
-        custom_options = [{
-            u'name': u'ServerAddresses',
-            u'value_type': mi.MI_ARRAY | mi.MI_STRING,
-            u'value': dnsnameservers
-        }]
-
-        operation_options = {u'custom_options': custom_options}
-        dns_client.put(operation_options=operation_options)
+        os.system(f'netsh interface ip set dns {interface_name} static {dnsnameservers}')
 
     def enable_network_adapter(self, name, enabled):
         adapter = self._get_network_adapter(name)
diff --git a/cloudbaseinit/utils/debiface.py b/cloudbaseinit/utils/debiface.py
index 4c4c26a1..8cb762b3 100644
--- a/cloudbaseinit/utils/debiface.py
+++ b/cloudbaseinit/utils/debiface.py
@@ -53,7 +53,7 @@
                         r"(?P<{}>\S+)".format(GATEWAY)),
     GATEWAY6: re.compile(r"post-up ip -6 route add default via "
                          r"(?P<{}>.+) dev".format(GATEWAY6)),
-    DNSNS: re.compile(r"dns-nameservers\s+(?P<{}>.+)".format(DNSNS))
+    DNSNS: re.compile(r"(dns-nameservers|dns_nameservers|dns-nameserver|dns_nameserver)\s+(?P<dnsnameservers>.+)".format(DNSNS))
 }
 IFACE_TEMPLATE = dict.fromkeys(FIELDS.keys())
 # Map IPv6 availability by value index under `NetworkDetails`.
@@ -98,10 +98,16 @@ def _get_field(line):
             yield field, match.group(field)
 
 
-def _add_nic(iface, nics):
+def _add_nic(iface, nics, dns):
     if not iface or iface == IFACE_TEMPLATE:
         return    # no information gathered
+    
+    # setting dns globally for all interfaces if provided
+    if dns:
+        iface[DNSNS] = dns
+        
     LOG.debug("Found new interface: %s", iface)
+
     # Each missing detail is marked as None.
     nic = network_model.NetworkDetails(**iface)
     nics.append(nic)
@@ -115,6 +121,7 @@ def parse(data):
 
     LOG.info("Parsing Debian config...\n%s", data)
     nics = []    # list of NetworkDetails objects
+    global_dns = None
     for lines_pair in _get_iface_blocks(data):
         iface = IFACE_TEMPLATE.copy()
         for lines, use_proxy in zip(lines_pair, (False, True)):
@@ -126,6 +133,10 @@ def parse(data):
                             continue
                     func = DETAIL_PREPROCESS.get(field, lambda value: value)
                     iface[field] = func(value) if value != "None" else None
-        _add_nic(iface, nics)
+
+                    # obtain dns global settings if provided
+                    if field == DNSNS and value != None:
+                        global_dns = value
+        _add_nic(iface, nics, global_dns)
 
     return nics