openstack-manuals/doc/arch-design-draft/source/design-networking/design-networking-services.rst
Shaun O Meara d223f7e0c8 [arch-design-draft] Content Restructure for networking
Creates new networking docs structure.

TODO: Add content to docs.

Change-Id: I8b4423b4c0d9dad8e0004e5a58f0d5be37675f7b
Implements: blueprint arch-guide-restructure
2016-07-28 23:46:14 +02:00

1.1 KiB

Additional networking services

OpenStack, like any network application, has a number of standard services to consider, such as NTP and DNS.

NTP

Time synchronization is a critical element to ensure continued operation of OpenStack components. Ensuring that all components have the correct time is necessary to avoid errors in instance scheduling, replication of objects in the object store, and matching log timestamps for debugging.

All servers running OpenStack components should be able to access an appropriate NTP server. You may decide to set up one locally or use the public pools available from the Network Time Protocol project.

DNS

OpenStack does not currently provide DNS services, aside from the dnsmasq daemon, which resides on nova-network hosts. You could consider providing a dynamic DNS service to allow instance's to update a DNS entry with new IP addresses. You can also consider making a generic forward and reverse DNS mapping for instances' IP addresses, such as vm-203-0-113-123.example.com.