What’s new in OpenStack Liberty
Liberty is the name chosen by the OpenStack team for the 12th release which is due on 15th October 2015: tomorrow. Let’s take a look at the major changes and new features that will be featured...
Marksei Weekly sysadmin pills
Ubuntu 15.10 new features, still no Unity 8
As every regular Ubuntu-fan would know, October is near, and so the next release of Ubuntu: 15.10 codename Wily Werewolf is scheduled to be released on the 22th October. This new version is essentially a bunch...
Fdisk the good old way to manage MBR disks
Managing disks is a common and fundamental skill for every system administrator, and knowing a bit more (rather than a bit less) about CLI tools surely will come in handy in many occasions.
Docker Basics
In this article I will show you how you can move your very first steps in the container world using Docker. Docker has many features that can help resolve different problems, today it is mostly used...
Docker what is it and how to get started
Containers are one of the most observed technologies lately, with high performance, great functionalities and higher scalability than VMs; they promise much but they’re still a somewhat untested technology. Yet times are coming close and many brave...
What is the Cloud? PAAS, SAAS and IAAS explained
Cloud is one of the most catchy buzzword in the last decade and much has been told about it like “It solves all the problems!”, “Move on the Cloud!”, “Create your own cloud!” and many many...
OpenStack use cases and tips
OpenStack is probably one of the most fast-growing project in the history of Open Source and as such it is prone to be obfuscated by its shininess. Understanding when and even IF to employ a solution...
Openstack resize instance no valid host was found
Today I had to resize an instance in my OpenStack and noticed that I couldn’t do that because of an error: “No valid host was found. No valid host found for resize (HTTP 400)“. Soon enough...
Linux 4.2 will enable you to update your firmware
After the jump from 3.19 to 4.0 this year, after the not-so-exciting 4.1 version that introduced EXT4 encryption thanks to Google, the penguin is approaching version 4.2. With that said, this release might be closer than...
LVM: an introductory guide to logical volumes
Logical Volume Management is easily one of the most important and useful tools in storage administration. With LVM you can easily move “partitions” (volumes) around your physical disk, have snapshots, even mirroring or live migrations across...
Recent Comments