Networking services security best practices

Networking services security best practices

To secure OpenStack Networking, you must understand how the workflow process for tenant instance creation needs to be mapped to security domains.

There are four main services that interact with OpenStack Networking. In a typical OpenStack deployment these services map to the following security domains:

  • OpenStack dashboard: Public and management

  • OpenStack Identity: Management

  • OpenStack compute node: Management and guest

  • OpenStack network node: Management, guest, and possibly public depending upon neutron-plugin in use.

  • SDN services node: Management, guest and possibly public depending upon product used.

../_images/1aa-logical-neutron-flow.png

To isolate sensitive data communication between the OpenStack Networking services and other OpenStack core services, configure these communication channels to only allow communication over an isolated management network.

OpenStack Networking service configuration

Restrict bind address of the API server: neutron-server

To restrict the interface or IP address on which the OpenStack Networking API service binds a network socket for incoming client connections, specify the bind_host and bind_port in the neutron.conf file as shown:

# Address to bind the API server
bind_host = IP ADDRESS OF SERVER

# Port the bind the API server to
bind_port = 9696

Restrict DB and RPC communication of the OpenStack Networking services

Various components of the OpenStack Networking services use either the messaging queue or database connections to communicate with other components in OpenStack Networking.

It is recommended that you follow the guidelines provided in Database authentication and access control for all components which require direct DB connections.

It is recommended that you follow the guidelines provided in Queue authentication and access control for all components which require RPC communication.

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