Category: ‘System administration’

Normation: our mission, why Rudder and our offer

Yesterday, we held a seminar in our offices titled IT infrastructure: Balancing best practices and everyday constraints. Mark Burgess, pioneer of software configuration management and founding CTO of CFEngine AS, was our guest star, and gave a very interesting talk about the Third Wave of IT Management. We took the opportunity to introduce Normation, presenting […] Read more

An installation and everyday usage guide for libvirt and KVM

Why all this ? Today, nearly every modern computing-related company uses directly or indirectly a virtualization software. As seen with the recent Cloud computing trend, it is a sector that recently exploded in popularity and it is now accessible to everyone. There are now a LOT of alternatives to virtualize an OS : Isolation : […] Read more

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A quick initiation to the Debian package construction

While attenting at this year’s RMLL conferences, I had the opportunity to listen to a great presentation of the APT package management system by Lucas Nussbaum. I then had the idea to create this post as a quick reference on how to quickly build someone’s first Debian package. You are kindly invited to take a […] Read more

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Configuration management tools for cloud computing (Open World Forum 2011)

The Open World Forum 2011 edition took place last week in Paris. I was invited to present a workshop in the Cloud Computing track. This gave me the opportunity to outline the importance of optimizing the “setup” phase of machines when using cloud computing. Today’s tools and APIs make it very easy to create and […] Read more

Formations Cfengine 3 à Paris et Bruxelles

Cfengine 3 est un logiciel de gestion de configuration open source très puissant, permettant de gérer efficacement des parcs informatiques de toutes tailles. Comme la plupart des outils complexe, un temps d’apprentissage est nécessaire pour l’utiliser au mieux. Nous organisons des sessions de formation à Paris, les 15, 16 et 17 juin, et à Bruxelles […] Read more

Cfengine 3.1.5 is nearly out, what can we expect from it?

Here at Normation, we use Cfengine 3 extensively for configuration management across Linux and Windows servers. Cfengine 3 is an open source project, and as every good open source project, the trunk version is always available (but not always very reliable) and stable versions are released regularly. Prior to the release of a new version, […] Read more

Mounting partitions stored in a logical volume (or a disk image)

With the increased use of virtualization has come the increased use of disk images (.iso, .vmdl, .qcow2, .vdi, etc) and LVM’s logical volumes (LV), as dedicated storage for Virtual Machines (VM). Frequently, when setting up a VM, several partitions are created within these disk images. So, you end up with a machine (the virtualization host), […] Read more

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