DevOps

Different between 127.0.0.1 and 0.0.0.0 with Node.js Demo Code

127.0.0.1 only accept from that machine

Now we got node on the server and try to write sample code without any dependencies.

// server.js
const…

Docker Erro: … is mounted on / but it is not a shared mount

Got this error after changing machine and docker-compose up meaning this might be issue from different Docker version.

Docker Size Investigation

This is a time when you Docker size is BIG!

Setup Nexus OSS on Docker as Docker Registry for Learning

Installing Hadoop on Ubuntu 20.04

Below I wrap up how to installing process. This is good for experimental NOT production at all.

SSH to VirtualBox Port Forwarding from WSL2 Machine

Step 1 VirtualBox: Configuration of Port…

SSH to VirtualBox Host-Only Adapter Interface from WSL2 Machine

AWS: Setup Client VPN and DNS host mapping for the VPC Access

Summary:

AWS Connecting Private VPC to ECR, CloudWatch, S3 with VPC Endpoint

Why we need this?

Setup Virt-Manager, Qemu, libvert and KVM on Ubuntu 20.04