An OpenStack Crime Story solved by tcpdump, sysdig, and iostat – Episode 3
09/17/14
Previously on OpenStack Crime Investigation … Two load balancers running as virtual machine in our OpenStack based cloud, sharing a keepalived based... Read more
Posts by Lukas Pustina
An OpenStack Crime Story solved by tcpdump, sysdig, and iostat – Episode 2
09/16/14
Previously on OpenStack Crime Investigation. I was called to a crime scene; our OpenStack based private cloud for CenterDevice. Somebody... Read more
An OpenStack Crime Story solved by tcpdump, sysdig, and iostat – Episode 1
09/15/14
This is the story of how the tiniest things can sometimes be the biggest culprits. Because first and foremost, this... Read more
Provisioning IaaS Clouds with Dynamic Ansible Inventories and OpenStack Metadata
06/25/14
My colleague Daniel Schneller gave an introduction to Ansible. A key concept of Ansible is the inventory. It contains all... Read more
Crypto is Broken or How to Apply Secure Crypto as a Developer
03/05/14
Last year’s revelations show that crypto is broken on all levels.1 We cannot trust hardware nor commercial software providers anymore... Read more
Ceph Object Storage as fast as it gets or Benchmarking Ceph
03/03/14
CenterDevice is a distributed document management and sharing software without any single centralized component. In our next evolution we are... Read more
Docker Registry or How to Run your own Private Docker Image Repository
02/18/14
Docker allows to bundle artifacts and configurations in an image. These images run as light weight system-level virtual machines. In... Read more
Docker Networking Made Simple or 3 Ways to Connect LXC Containers
01/26/14
In my previous article, I introduced Docker as a lightweight alternative to hypervisor-based virtualization. The article described the basic usage... Read more
Lightweight Virtual Machines Made Simple with Docker or How to Run 100 Virtual Machines
01/06/14
Running virtual machines has many benefits. They utilize your hardware much better, are easy to backup and exchange, and isolate... Read more
“Never Change a Running System” is wrong
12/18/13
In German, we like to make up our own English words and expressions. For example, German IT-experts have invented the... Read more
Your Hardware will Fail – Just not the Way You Expect
11/13/13
Why do people decide to move their services into the cloud? For one thing they wish to store large amounts... Read more