===========================
Firewalls and default ports
===========================

On some deployments, such as ones where restrictive firewalls are in
place, you might need to manually configure a firewall to permit
OpenStack service traffic.

To manually configure a firewall, you must permit traffic through the
ports that each OpenStack service uses. This table lists the default
ports that each OpenStack service uses:

.. list-table:: Default ports that OpenStack components use
   :header-rows: 1

   * - OpenStack service
     - Default ports
     - Port type
   * - Application Catalog (``murano``)
     - 8082
     -
   * - Block Storage (``cinder``)
     - 8776
     - publicurl and adminurl
   * - Compute (``nova``) endpoints
     - 8774
     - publicurl and adminurl
   * - Compute API (``nova-api``)
     - 8773, 8775
     -
   * - Compute ports for access to virtual machine consoles
     - 5900-5999
     -
   * - Compute VNC proxy for browsers ( openstack-nova-novncproxy)
     - 6080
     -
   * - Compute VNC proxy for traditional VNC clients (openstack-nova-xvpvncproxy)
     - 6081
     -
   * - Proxy port for HTML5 console used by Compute service
     - 6082
     -
   * - Data processing service (``sahara``) endpoint
     - 8386
     - publicurl and adminurl
   * - Identity service (``keystone``) administrative endpoint
     - 35357
     - adminurl
   * - Identity service public endpoint
     - 5000
     - publicurl
   * - Image service (``glance``) API
     - 9292
     - publicurl and adminurl
   * - Image service registry
     - 9191
     -
   * - Networking (``neutron``)
     - 9696
     - publicurl and adminurl
   * - Object Storage (``swift``)
     - 6000, 6001, 6002
     -
   * - Orchestration (``heat``) endpoint
     - 8004
     - publicurl and adminurl
   * - Orchestration AWS CloudFormation-compatible API (``openstack-heat-api-cfn``)
     - 8000
     -
   * - Orchestration AWS CloudWatch-compatible API (``openstack-heat-api-cloudwatch``)
     - 8003
     -
   * - Telemetry (``ceilometer``)
     - 8777
     - publicurl and adminurl
   * - Workflow service (``Mistral``)
     - 8989
     -

To function properly, some OpenStack components depend on other,
non-OpenStack services. For example, the OpenStack dashboard uses HTTP
for non-secure communication. In this case, you must configure the
firewall to allow traffic to and from HTTP.

This table lists the ports that other OpenStack components use:

.. list-table:: Default ports that secondary services related to OpenStack components use
   :header-rows: 1

   * - Service
     - Default port
     - Used by
   * - HTTP
     - 80
     - OpenStack dashboard (``Horizon``) when it is not configured to use secure access.
   * - HTTP alternate
     - 8080
     - OpenStack Object Storage (``swift``) service.
   * - HTTPS
     - 443
     - Any OpenStack service that is enabled for SSL, especially secure-access dashboard.
   * - rsync
     - 873
     - OpenStack Object Storage. Required.
   * - iSCSI target
     - 3260
     - OpenStack Block Storage. Required.
   * - MySQL database service
     - 3306
     - Most OpenStack components.
   * - Message Broker (AMQP traffic)
     - 5672
     - OpenStack Block Storage, Networking, Orchestration, and Compute.

On some deployments, the default port used by a service may fall within
the defined local port range of a host. To check a host's local port
range:

.. code-block:: console

    $ sysctl net.ipv4.ip_local_port_range

If a service's default port falls within this range, run the following
program to check if the port has already been assigned to another
application:

.. code-block:: console

    $ lsof -i :PORT

Configure the service to use a different port if the default port is
already being used by another application.