Category: Networking

  • An Canary Upgrade of Istio 1.9 to 1.11

    Prerequisites: full Admin access to a Kubernetes cluster, which has an older version of Istio installed. A while ago I decided to try Istio in my garage Kubernetes lab, and replaced ingress-nginx with istio-ingressgateway. At the time being I installed Istio 1.9.4, the latest release is already 1.11.4. To avoid being left in the deprecated […]

  • Google Nest Wifi: A Speaker With Mesh Wifi

    I have been using a NetGear Nighthawk R7000 for many years, time for an upgrade. The Google Nest Wifi is very easy to setup, only need to connect the Nest Wifi router to existing router/modem and the rest can be done on a phone with Google Home app. Here are some good stuff I got […]

  • 5G + Public IP with OpenVPN

    I’ve done a proof of concept with SSH tunneling to add a public IP to my 5G home broadband connection, it works for my garage-hosted blogs but it’s not a complete solution. Since I still have free credit in my personal Google Cloud account, I decided to make an improvement with OpenVPN. The diagram looks […]

  • 5G is Fast but There’s No Public IP

    I’m super happy that I can finally have a broadband that does have a broad bandwidth. However like all other cellular services the 5G gateway has a private IP as its external IP, ie. everything I got is behind huge NAT servers of Optus and they will not open any port just for me. The […]

  • 5G Is Fast! Bye Bye NBN

    A few months ago I knew Optus was rolling out the shiny 5G services but to my surprise it’s available in my suburb already. It took NBN years. It’s a tough time at the moment as everyone is ordered to stay home, but it’s a perfect time to upgrade my home broadband and without paying […]

  • Home VPN with OpenVPN

    Here are step to run a simple OpenVPN service at home, so that I can access home network easily while not at home. First, clone the git repo for OpenVPN docker container: git clone https://github.com/kylemanna/docker-openvpn.git I can use the pre-built docker image from docker hub but it has just been breached so I’d rather build […]

  • Don’t Need Ngrok When I Have SSH

    I was trying to create a Slack app. In order to let Slack send REST requests to my dev environment, eg. http://localhost:9000, I searched a bit and saw ngrok. Ngrok is very handy for this kind of setup: Slack -> xyz.ngrok.io -> localhost However I just don’t want to install anything so I turned to […]

  • Resolved: Arch Linux WiFi issue

    When I connected my laptop running Arch Linux to a new WiFi this morning, it worked for a brief moment then all connections were dropped. Connecting to the same WiFi with phone or Macbook works fine so the problem is at Arch LInux(AL)’s end. Then I noticed if I do a route it actually showed 2 […]

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