CloudStack and the new XenServer licensing model

Citrix have announced that as of XenServer 7.3, the free version (including the ‘opensource’ version packaged by Citrix) will no longer have feature parity with the paid-for Standard version. Of the features which are restricted in the free version, a maximum pool size of 3 hosts and the removal of Xen Storage Motion are going to make the use of free XenServer to run production clouds pretty much untenable.

OIS and ShapeBlue Announce Apache® CloudStack® v4.11 To Power CloudSchool Platform

Enables rapid development of cost-effective, scalable Cloud-based educational solutions Education IT specialist Oakford Internet Services (OIS) announced today that the latest version of their highly successful and acclaimed CloudSchool platform will be based on the latest edition of Apache® CloudStack®. “Within the UK education sector, budgets are always decreasing whilst the demand on the schools […]

What’s new in CloudStack 4.11?

Version 4.11 of Apache CloudStack has been released with some exciting new features and a long list of improvements and fixes. It includes more than 400 commits, 220 pull requests, and fixes more than 250 issues.  This version has been worked on for 8 months and is the first release of the 4.11 LTS releases, […]

CloudStack usage service deep dive

Introduction CloudStack usage is a complimentary service which tracks end user consumption of CloudStack resources and summarises this in a separate database for reporting or billing. The usage database can be queried directly, through the CloudStack API, or it can be integrated into external billing or reporting systems. For background information on the usage service […]

Layer 2 Networks in CloudStack

Layer 2 (also known as the Data Link Layer) is the second in the seven-layer OSI reference model for network protocol design, and is equivalent to the link layer (the lowest layer) in the TCP/IP network model. Layer 2 is the network layer used to transfer data between adjacent network nodes in a wide area […]

CloudStack EU user group roundup – Leipzig November 2017

The November EU user group was held in the lovely city of Leipzig in Saxony, Germany. First of all a great thanks to Sven Vogel and his team at Kupper Computer who hosted this event, which had a good turnout from the German CloudStack user community. Sven started off the afternoon with welcome and introductions, before handing […]

CloudStack CA Framework

Introduction The CloudStack management server listens by default on port 8250 for agents, and this is secured by one-way SSL authentication using the management server’s self-generated server certificates. While this encrypts the connection, it does not authenticate and validate the connecting agent (client). Upcoming features such as support for container/application cluster services require certificate management, and the emerging […]

A Beginners Guide To CloudStack Networking

Many people find it challenging to get started with CloudStack’s networking. There are some basic concepts, which although not overly complicated, are not especially obvious either. This blog will try to explain these underlying concepts, in order to make getting started with CloudStack networking models much easier.

ShapeBlue Security Advisory – DNSMasq Vulnerabilities

A number of security flaws were recently found in the DNSMasq tool. This tool is used by many systems to provide DNS and DHCP services, including by the CloudStack System VMs.
This advisory explains their affect on CloudStack and how to patch CloudStack against these flaws.

CloudStack European User Group roundup

Last Thursday saw us back at BT, London, for the Summer meetup of the CloudStack European User Group (CSEUG). A full schedule meant a prompt start, and Giles Sirett (CSEUG chairman) brought the meeting to order and started with introductions and CloudStack news. Since the last meetup, CloudStack 4.9.2 has been released, with 4.9.3 due […]