today's howtos

posted by Roy Schestowitz on Apr 28, 2023

• How to add public Ingress to a PrivateLink ROSA cluster

  This article demonstrates how to expose applications to the internet by deploying in a PrivateLink Red Hat OpenShift Service on AWS (ROSA) cluster within a truly private Virtual Private Cloud (VPC) that doesn’t have a network address translation (NAT) gateway or an internet gateway attached to it. We will be using a single VPC for Ingress and Egress traffic. However, you might choose to have separate VPCs for Ingress and Egress traffic to provide more security control of this traffic.

• How to install Ubuntu Linux (It's easy!)

  If you can install an app, you can install Linux. Here's how.

• How to Fix “Command ‘pip3’ not found” Error in Linux

  PIP is the conventional package manager for Python, which is the standard tool for installing and managing Python packages alongside their dependencies which are not included in the standard Python library.

  When using pip, you might encounter the error “pip command not found” on the terminal. Below is an excerpt of the error as captured on the Ubuntu system.

• How to Fix “-bash: sudo: command not found” in Linux

  Have you ever tried to run a Linux command using sudo only to see the warning “sudo command not found” splashed on your terminal? This can be quite frustrating and it prevents you from working on your system as a non-root user while performing administrative tasks.

  In this guide, we look at how to fix the “sudo command not found” error in Linux.

• What is $0 in a Bash Script?

  As you know, the $ sign in the bash is used to indicate the variables. This is a variable too but a different one.