John Hanley

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

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Google Compute

Google Cloud – Recovering from UFW lockout

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 The problem is… 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 →

Comparing AWS & Google – IP Packet Forwarding

When you configure an instance that will forward packets, you need to change an option. The option name depends on the cloud vendor. Example usage would be a VPN, or NAT instance. Normally an instance is source or destination for… Continue Reading →

Google Compute – Install Stackdriver

Date created: October 26, 2018 Last updated: March 10, 2019 Note: I have written a newer version of the this article that goes much deeper into setting up Google Stackdriver on Compute Engine. Google Compute – Stackdriver Logging – Installation,… 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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