I’m very excited to announce today the release of our distributed stateful Cloud Firewall service for Brightbox Cloud!
The new firewall service provides a highly-configurable and powerful facility for controlling network access to, from and between your Cloud Servers.
Here are some highlights:
- Security: The firewall service wraps each Cloud Server, insulating it from other Cloud Servers as well as external networks.
- Full control: Manage both inbound and outbound network access.1
- Flexibility: Organise your cloud servers using server groups and add/remove in real-time.2
- Convenience: Easier to manage than in-server iptables (and impossible to lock yourself out!).
- Simplicity: Intuitive and powerful firewall rule format.
- High performance: Distributed architecture scales linearly - designed to handle millions of concurrent connections.3
- Future proof: Fully IPv6 compatible.4
There are three new concepts introduced to the Brightbox API to enable the management of the Cloud Firewall service - Server Groups, Firewall Policies and Firewall Rules.
Cloud Servers can now be organised into logical groups, for example, according to their role: e.g “webservers”, “db servers” etc. We’ll be adding additional functionality soon to make more use of Server Groups - for now though, their primary function is to enable the implementation of Firewall Policies. You can add and remove servers to your server groups at any time - a distinct advantage over AWS security groups, where you are required to relaunch servers to move/change security groups. For more information, see the Server Groups documentation.
Firewall policies consist of a collection of rules and can be instantly applied to Server Groups. Each new Brightbox Cloud account has a default policy which contains rules allowing access to common services, such as SSH, PING, HTTP and HTTPS.
Note: The default policy for existing customers is fully open (to avoid sudden loss of network access as we deployed the new feature!). For more information, see the Firewall Policies documentation.
Firewall rules control both inbound and outbound traffic and are very flexible, accepting a number of different types of source and destination e.g a server group, a server id or an ip address/range. For more information, see the Firewall Rules documentation.
Support for the new Cloud Firewall service is available in the Brightbox CLI now, from version 0.15.
Amazon EC2 security groups only provide inbound management, unless you use the VPC service. ↩
Amazon EC2 requires relaunching of servers to change security groups, unless you use the VPC service. ↩
The Cloud Firewall service is distributed and scales linearly, so can technically handle unlimited concurrent connections. ↩
Brightbox Cloud is IPv6 ready - IPv6 addressing shall be launched within the next few weeks. ↩
posted 02 Nov 2011 by Jeremy Jarvis