System & Network Admin

Tekton is a Kubernetes-native continuous integration and delivery (CI/CD) framework. It allows you to create containerized, composable, and configurable workloads declaratively through Kubernetes Custom Resource Definitions (CRD).

GraphQL, the query language invented by Facebook, has attracted a lot of interest as a means to conveniently access data programmatically. GraphQL

Have media files on your computer? You can likely reclaim significant disk space by storing that data in more space-efficient file formats. This article demonstrates how to use Linux line commands to perform the most common space-saving conversions. I use line commands because they give you complete control over compression and format conversion features. Also, you'll need to use line commands if you want to write scripts. That allows you to develop programs that are custom-tailored to your own unique needs.

Quickgui aims to be a simpler alternative to VirtualBox and help create virtual machines quickly. Here's what you need to know about it.

This beginner-friendly, step-by-step guide walks you through the initial configuration of your OPNsense firewall. The title of this guide is an homage to the pfSense baseline guide with VPN, Guest, and VLAN support that some of you guys might know, and this is an OPNsense migration of it. I found that guide two years ago and immediately fell in love with the network setup. After researching for weeks, I decided to use OPNsense instead of pfSense.

Despite its shortcomings, it’s best to embrace an evolution strategy for Terraform and not start from scratch.

Analyzing Infrastructure as Code (IaC) to detect cloud misconfigurations is one of the hottest topics in cybersecurity. An entire industry has popped up around this single topic — and for good reason! But today’s IaC tools analyze security configurations in a limited, myopic way that generates noisy alerts and does not help organizations understand their […]

Server and application logging is an important facility for developers, operators, and security teams to understand an application's state running in their production environment. Logging allows operators to determine if the applications and the required components are running smoothly and detect if something unusual is happening so they can react to the situation.

Redmine

Redmine

NGINXConfig - The easiest way to configure a performant, secure, and stable nginx server.

A Modern Solution for a Modern Problem

When there’s split responsibility between departments and it’s unclear who holds responsibility for elements of operations, chaos quickly ensues.

I use "chentex/random-logger" image, which write stdout/stderr to the container. I want to make deployment yaml, which run the chentex's image, and put it's logs in file inside shared volume. Can I...

DevOps engineers wishing to troubleshoot Kubernetes applications can turn to log messages to spot error causes & their impact on the rest of the cluster.

Ansible is an agentless architecture based automation tool . Only it needs ssh authentication using Ansible Control Machine private/public…

Ansible is used to automate the process of installation and configuration of applications or execute scripts remotely on Hosts. Ansible…

Andre Hotzler

I've been using Bash functions quite liberally over the past couple years, but last week I discovered that they can be much better than I thought. In this post, I'll explain how I thought they worked, why I was wrong, and how that makes them better.Function syntax

What, exactly, distinguishes monitoring from observability? In general, the differences can be distilled into two main points.

There has been confusion in Debian-based Linux distros regarding apt and apt-get commands. This ultimate guide explains it all.

With a growing number of cloud-native applications going to production through Kubernetes adoption, security is an important checkpoint that you must consider early in the process. When designing a cloud-native application, it is very important to embed a security strategy up front. Failure to do so leads to lingering security issues that can cause project delays and ultimately cost you unnecessary stress and money.

Looking for how to fix Ansible error failed to connect to the host via ssh? We can help you. Ansible saves time by automation of server tasks. However, improper host entry in the Ansible Inventory file or bad SSH configuration can create connection errors too. At Bobcares, we get requests to fix Ansible errors as […]

There are some key differences between observability and monitoring especially with regard to what both practices mean for SREs.

A deep dive case study into the Google SRE Site Reliability Engagement Model with and overview and specific examples.

How to get and set host name of a Linux machine along with some other host information? What is pretty host name and static host name?

In this article, we will show you how to set system hostname or domain name permanently in Linux using hostname and hostnamectl command.