Fix Linux template cleanup

linux/_linuxcontext.py

@@ -214,7 +214,10 @@ class Context(BaseContext):
             if exists(f):
                 remove(f)
 
-        subprocess.call(('/usr/bin/ssh-keygen', '-A'))
+        with open('/etc/network/interfaces', 'w') as f:
+            f.write('auto lo\niface lo inet loopback\n')
+        
+#        subprocess.call(('/usr/bin/ssh-keygen', '-A'))
 
     @staticmethod
     def start_access_server():