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 (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 […]
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 […]
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 […]
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.
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.
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 […]
Intro What is HA? “High availability is a characteristic of a system, which aims to ensure an agreed level of operational performance, usually uptime, for a higher than normal period. ” — Wikipedia HA in CloudStack is currently supported for VMs only. In order to have it enabled, the service offering of the VM should […]
Introduction Configuring connectivity between CloudStack hosted VPCs can be done by either using private gateways – which has to be configured by CloudStack root administrators to use dedicated network segments – or by using VPC-to-VPC connections, which can be configured by the CloudStack end user without admin input. In this blog post we will cover how to […]
The third and final day of the CloudStack Collaboration Conference 2017 (North America) is underway, and as usual it has been a fantastic few days. Attendees have been truly spoilt with a plethora of speakers from all over the world – hearing from operators, users, vendors, developers, service providers and business owners. Although the CloudStack […]
