They have a page specifically noting what they support:<p><a href="https:&#x2F;&#x2F;support.rackspace.com&#x2F;how-to&#x2F;cloud-servers-with-managed-operations-support-for-linux&#x2F;" rel="nofollow">https:&#x2F;&#x2F;support.rackspace.com&#x2F;how-to&#x2F;cloud-servers-with-mana...</a><p>Speaking as an ex-Racker, yeah, if your infrastructure isn&#x27;t listed on that page and you have something like Tomcat running or Cassandra, or Headless VirtualBox an dedicated box, it was best effort. If you want externalized customized support for that client outside the standard tech stack supported by Rackspace, you need to bring in an external MSP, consultancy, or FTE willing to take on your tech stack and provide an SLA, and pay for it.