How to check if a system is virtual

I was improving a playbook in Ansible and wanted to find a way to find if a system was virtual or not to decide about some tunning like setting tuned-adm profile virtual-guest or disable the power off when the lid is closed. After some research and try-except situations I got to this one that seemed to work (I had to tune it as one desktop machine was missing the /sys entry I was using before):...

May 10, 2021 · 3 min · Pablo Iranzo Gómez

How to run a NYM Validator

As said in the article about mixnodes, NYM is a technology aiming for providing privacy for the communications. Apart of the mixnodes, other key piece in the infrastructure are the validators. As said, the project uses Open Source technology to run, and they have a nice docs with details on how to run a node at https://nymtech.net/docs/, and the one relevant for mixnodes at https://nymtech.net/docs/run-nym-nodes/validators/. In this case, we can follow the instructions for compiling, but I faced some issues (compiling went fine, but initial sync failed), so in this case, we will use the pre-compiled version provided with the 0....

May 9, 2021 · 4 min · Pablo Iranzo Gómez

How to run a NYM mixnode

Some time ago I’ve started running a NYM mixnode. NYM is a project that targets improving privacy by decomposing network packages from different hosts, so that origin and target cannot be traced. You can check more about the NYM project at their site at https://nymtech.net/. The project uses Open Source technology to run, and they have a nice docs with details on how to run a node at https://nymtech.net/docs/, and the one relevant for mixnodes at https://nymtech....

May 9, 2021 · 2 min · Pablo Iranzo Gómez

Argos extension writing for Gnome3

I was using from time ago this extension for Gnome named Argos which allows to create useful data views using scripts written in whatever language of choice available, bash included. So far I had just a simple extension writing a UNICODE character, but with the suggestion of my colleague Javi Ramírez, I decided to use the motivational idea to write a simple script to calculate how much you’ve earned so far in the day and show that information at a glance on your menu bar....

June 27, 2019 · 2 min · Pablo Iranzo Gómez

Contributing to OSP upstream a.k.a. Peer Review

Introduction In the article “Contributing to OpenStack” we did cover on how to prepare accounts and prepare your changes for submission upstream (and even how to find low hanging fruits to start contributing). Here, we’ll cover what happens behind the scene to get change published. Upstream workflow Peer review Upstream contributions to OSP and other projects are based on Peer Review, that means that once a new set of code has been submitted, several steps for validation are required/happen before having it implemented....

October 16, 2018 · 6 min · Pablo Iranzo Gómez
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