Security, software development and devops in a cloud world - AWS, Azure, Google, IBM & Alibaba

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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