diff --git a/content/new_vm.rst b/content/new_vm.rst
index 5b226d6..18aa9f2 100644
--- a/content/new_vm.rst
+++ b/content/new_vm.rst
@@ -2,7 +2,7 @@ new virtual machine
 ###################
 
 :date: 2019-11-10 00:00
-:modified: 2019-11-10 00:00
+:modified: 2021-09-13 00:00
 :tags: infra
 :category: documentation
 :slug: create_vm
@@ -383,6 +383,19 @@ DHCP static leases should now execute the following script.
       "<host mac='${MAC}' \
        name='${NAME}' ip='${IP}' />" \
        --live --config
+    
+    # if you wish to use dnsmasq's dns service, execute also the following
+
+    virsh net-update default add dns-host \
+      "<host ip='${3}'> \
+        <hostname>${1}</hostname> \
+       </host>" \
+      --live --config
+
+    # you may have to reload the iptables rules if libvirt messes with them
+    # and if you don't want to restart the machine
+    
+    cat /etc/network/iptables|iptables-restore
 
 
 You can now re-start the machine.