Author Archives: gutter007

Kubernetes Upgrade via kOps

There are a few different ways to install/configure/upgrade and maintain a kubernetes cluster. This post reviews how to upgrade a kubernetes installation that is installed via kOps, and ismaintained via kOps. It will also go through troubleshooting the deployment to take out some of “mystery” of how kOps performs some of the functions. https://kops.sigs.k8s.io/ https://github.com/kubernetes/kopsContinue reading “Kubernetes Upgrade via kOps”

HTTPS/SSL Encryption with Lets Encrypt and Cloudflare DNS

Lets Encrypt allows users to create and renew public HTTPS/SSL/TLS Certificates free of charge. This post demonstrates how to create and automatically renew SSL certificates running on an Ubuntu 22.04.4 LTS based nginx server. Additionally, automated DNS validation is done via the DNS servers configured on cloudflare. This post only works if the domain usesContinue reading “HTTPS/SSL Encryption with Lets Encrypt and Cloudflare DNS”

AWS Certificate Manager (ACM)

If you host services on Amazon Web Services (AWS), you should be using AWS Certificate Manager (ACM) to create and renew all SSL Certificates. Note: This post assumes you have ownership of the domain, and it is configured in AWS. Request a Certificate Choose: “Request a public certificate“ Then enter the following information: Note doubleContinue reading “AWS Certificate Manager (ACM)”

SSL Certs – The Important Stuff

What is an SSL Cert? First, Cert is short for certificate. An SSL Cert, or more accurately TLS cert, is essentially a public key, and private key, that allows a website, and its users to encrypt the data they send each other. An SSL cert goes one step further, in that a trusted third party validatesContinue reading “SSL Certs – The Important Stuff”

SSH Troubleshooting

The hard part about ssh isn’t the setup, It’s the troubleshooting. There are a lot of little details, and if any one is wrong, BOOM!, it doesn’t work. This post references material from a earlier post – ssh – The Important Stuff -vvv The most important part of troubleshooting, is using the Very Verbose flags to giveContinue reading “SSH Troubleshooting”

SSH – The Important Stuff

I’ve seen a lot of ssh tutorial sites, and each has a little bit of information, or way too much detail. I’ve also helped a lot of people troubleshoot ssh connection issues. Although I love to help, I tend to see the same issues over and over. Here, I’m going to highlight the important stuff. In a future postContinue reading “SSH – The Important Stuff”