OPENSTACK
- Starting with Openstack Administration - (2020-12-11) - - Recently I wrote a post about deploying Openstack using kolla-ansible. I finished the article explaining that it was working based on the results of Openstack's dashboard. Yes, I can say that it is working. However, there is not much we… …
- Deploying Openstack with Ansible-Kolla on LXC - (2020-12-11) - - After writing about using LXC and showing its capabilities to run Docker and Virtual Machines, in a Post showing how to start with LXC, and the second one showing how to deploy a Kubernetes cluster in with LXC, I'm going… …
Continue reading "Deploying Openstack with Ansible-Kolla on LXC"
Kubernetes
- Deploying Kubernetes in LXC - (2020-11-29) - - I wrote a post about using LXC Containers in Ubuntu 20.04. I explained there how we could install LXC and how to install Docker and how to run KVM virtual hosts. It simply works. In order to deploy Docker and… …
Storage: Sharing disks, disk Storage…
- An introduction to GlusterFS - (2020-12-11) - - In GlusterFS web page, they describe their product simply like this: "Gluster is a free and open source software scalable network filesystem". It is interesting since it is designed to scale by providing new resources to the Gluster Cluster. There… …
- NFS Divertimento - (2020-12-11) - - Some weeks ago, I wrote something about iSCSI. This is a way to show a remote disk in another server as if it was a local disk. You need to care in you client about everything: It is basically like… …
- iSCSI Divertimento - (2020-12-11) - - iSCSI (Intenet Small Computer Storage Interface) implements SCSI protocol over a TCP/IP network. SCSI was a standard interface to transfer data in a computer bus. So iSCSI is a way to Store and Retrieve data from a remote disk as… …
- Managing Logical Volumes in Linux: LVM – The basics. - (2020-12-11) - - Creating the Logical Volumes There is an interesting feature in Linux: The implementation of Logical Volumes using LVM (Logical Volume Manager). This implementation manages 3 concepts: Physical Volumes, corresponding, basically, to physical disks or partitions.Volume Groups which are an agregation… …
Continue reading "Managing Logical Volumes in Linux: LVM – The basics."
Cryptography
- OpenSSL cheatsheet - (2020-12-11) - - I've always wanted to remember all the parameters that a command is actually using, however, my memory is not as good as it used to be. So, I need some cheatsheets from time to time. Maybe you can benefit from… …
- A Divertimento with RSA Basis - (2020-10-07) - - RSA algorithm is quite easy to implement. It's been around since 1979 and it is still quite safe. We only need two prime numbers p and q. Let's imagine p=701 and q=997. The way to test a number is a… …