Security, software development and devops in a cloud world

Category Debian

Google Cloud – Recovering from UFW firewall lockout – Debian

Introduction You have a Debian instance running in Google Cloud Compute Engine. You connect to this instance via SSH. One day you decide to enable the UFW firewall and your SSH connection drops. You cannot reconnect. Problem Enabling the UFW firewall… Continue Reading →

Google Cloud – Debian 9 – Resize Root File System

In Google Cloud I often use Debian 9 Stretch for my test instances. Today I was wondering if this OS automatically resizes the root file system if I resize the VM instance disk. I also want to see if this… Continue Reading →

Let’s Encrypt – Debian 9 on Google Compute Instance

Let’s Encrypt is a Certificate Authority (CA) that issues free SSL certifications. I have used these certificates on web servers, cloud functions, load balancers, and many more. In this article I will show how to obtain an SSL certificate from… Continue Reading →

Google Compute – Startup Script Total Execution Time

I have been testing Google Compute VM instances with custom startup scripts. I wanted to figure out how long my startup scripts were taking to initialize an instance. The VM instance has Debian 9 Stretch as the OS. Knowing the… Continue Reading →

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