diff --git a/linux/network/host.sls b/linux/network/host.sls
index d913c6f..6749350 100644
--- a/linux/network/host.sls
+++ b/linux/network/host.sls
@@ -28,6 +28,8 @@
     - repl: {{ after }}
     - watch:
       - host: linux_host_{{ name }}
+    - onlyif:
+      - grep -q "{{ before }}" /etc/hosts
 
 {%- endif %}
 
@@ -35,4 +37,4 @@
 
 {%- endfor %}
 
-{%- endif %}
\ No newline at end of file
+{%- endif %}
diff --git a/linux/network/interface.sls b/linux/network/interface.sls
index 4b26750..6b6755b 100644
--- a/linux/network/interface.sls
+++ b/linux/network/interface.sls
@@ -88,6 +88,7 @@
   - type: {{ interface.type }}
   {%- if interface.address is defined %}
   {%- if grains.os_family == 'Debian' %}
+  - unless: grep -q "iface {{ interface_name }} " /etc/network/interfaces
   - proto: {{ interface.get('proto', 'static') }}
   {% endif %}
   {%- if grains.os_family == 'RedHat' %}