Book Review: UNIX and Linux System Administration Handbook, 5th Edition

I love Linux and I always considered myself an Open Source enthusiast. After reading “The Practice of System and Network Administration”, I decided to add this must-read book to my list.

The contents are well organised and good not only for beginners and junior system administrators but I think there are very interesting takeaways for more experienced professionals too. Continue reading “Book Review: UNIX and Linux System Administration Handbook, 5th Edition”

Git Pocket Guide

Once again this is not a sponsored review by my 2 cents.

This pocket guide it’s not an introduction on git the best practices, but it will show some options available and will boost your confidence and knowledge to solve most of the common problems. It’s full of practical examples with just enough deep dive into git to show you the things work under the hood.

This book is very good “to show you the tip of the iceberg”. Git, like any other distributed systems it’s complex, but most of its common features and operations are easy to understand aren’t so difficult and if you’re not familiar with the cli, there are plenty of tools to get you started. Continue reading “Git Pocket Guide”

How to sign a PowerShell script

As a DevOps engineer, I frequently come across talented developers that underestimate some security aspects of the deployments, for instance, just to name a couple:  integrity and authenticity of the code or artefacts that we deploy.

Python and Powershell are powerful languages to develop quick and robust solutions are extremely popular between attackers, for this reason, our ecosystem should take security very seriously.

Security is now far beyond the (old) perimeter of the company’s premises and infrastructure, indeed network or systems is abstracted away with or without cloud/hybrid deployments and just the enforcing identity is not enough in most cases.

In my opinion, white-listing applications around code-signing and checking the integrity of our code it’s more effective and less painful than you can think a good habit to build on a daily basis.

Continue reading “How to sign a PowerShell script”

Application Deployment Troubleshooting with Powershell

As a DevOps, most of my energies are constantly focused on doing or fixing things right from the start with the intention of creating a simple or at least straightforward processes.  But this is not an article on my endless war against technical debt and avoiding shortcuts whenever it’s possible.

the more things change, the more they stay the same

The values and the culture inherited from ITIL, Agile and DevOps massively influenced the whole modern software life cycle.  CI/CD extended to code quality/testing/delivery etc.. In these years should have changed most of our daily tasks or our business-as-usual, right? Well… not yet! Continue reading “Application Deployment Troubleshooting with Powershell”

How to generate a Remote Desktop Manager (RDMan) group XML for your infrastructure with PowerShell

I thought that RDMan, aka Remote Desktop Connection Manager, fitted perfectly in “A BLAST FROM THE PAST” category of software used back in the day by every System Engineer working on Windows Systems. I was wrong. Believe it or not, it is still strong today!

When you need to manage multiple servers/workstation remotely via RDP(Remote Desktop Protocol) it’s for most professionals the obvious choice. The GUI of the application is straightforward and in most cases or scenarios it’s fit for purpose. Continue reading “How to generate a Remote Desktop Manager (RDMan) group XML for your infrastructure with PowerShell”