:original_name: faq_security.html

.. _faq_security:

Security
========

-  :ref:`Why Can't I Delete a Security Group? <faq_security_0003>`
-  :ref:`Can I Change the Security Group of an ECS? <vpc_faq_0039>`
-  :ref:`How Do I Configure a Security Group for Multi-Channel Protocols? <vpc_faq_0059>`
-  :ref:`Does a Modified Security Group Rule or a Firewall Rule Take Effect Immediately for Existing Connections? <vpc_faq_0074>`
-  :ref:`Which Security Group Rule Has a High Priority When Multiple Security Group Rules Conflict? <vpc_faq_0077>`

.. toctree::
   :maxdepth: 1
   :hidden: 

   why_cant_i_delete_a_security_group
   can_i_change_the_security_group_of_an_ecs
   how_do_i_configure_a_security_group_for_multi-channel_protocols
   does_a_modified_security_group_rule_or_a_firewall_rule_take_effect_immediately_for_existing_connections
   which_security_group_rule_has_a_high_priority_when_multiple_security_group_rules_conflict