diff --git a/group_vars/os_centos.yml b/group_vars/os_centos.yml
index 9f4eddd..d8272d8 100644
--- a/group_vars/os_centos.yml
+++ b/group_vars/os_centos.yml
@@ -23,3 +23,5 @@ tools_package:
   - grep
   - net-tools
 
+# Do not configure iptables/firewall with Ansible
+configure_iptables: false