Tags: Tools

Kubernetes 1.14 Enhances Cloud-Native Platform With Windows Nodes

The first major update of the open-source Kubernetes cloud-native platform in 2019 was released on March 25, with the general availability of Kubernetes 1.14. Kubernetes is a broadly deployed container orchestration system project that is hosted by the Cloud Native Computing Foundation (CNCF) and...
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square brackets
This tutorial tackle square brackets and how they are used in different contexts at the command line.

Using Square Brackets in Bash: Part 1

After taking a look at how curly braces ({}) work on the command line, now it’s time to tackle brackets ([]) and see how they are used in different contexts. Globbing The first and easiest use of square brackets is in globbing. You have probably used globbing before without knowing it. Think of all...
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Move your Dotfiles to Version Control

There is something truly exciting about customizing your operating system through the collection of hidden files we call dotfiles. In What a Shell Dotfile Can Do For You, H. "Waldo" Grunenwald goes into excellent detail about the why and how of setting up your dotfiles. Let's dig into the why and...
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Text Processing in Rust

Create handy command-line utilities in Rust. This article is about text processing in Rust, but it also contains a quick introduction to pattern matching, which can be very handy when working with text. Strings are a huge subject in Rust, which can be easily realized by the fact that Rust has two...
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How to Monitor Disk IO in Linux

iostat is used to get the input/output statistics for storage devices and partitions. iostat is a part of the sysstat package. With iostat, you can monitor the read/write speeds of your storage devices (such as hard disk drives, SSDs) and partitions (disk partitions). In this article, I am going to...
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OpenLDAP
In part one of this short tutorial series, Jack Wallen explains how to install OpenLDAP.

How to Install OpenLDAP on Ubuntu Server 18.04

The Lightweight Directory Access Protocol (LDAP) allows for the querying and modification of an X.500-based directory service. In other words, LDAP is used over a Local Area Network (LAN) to manage and access a distributed directory service. LDAPs primary purpose is to provide a set of records in a...
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Managing Changes in Open Source Projects

Why bother having a process for proposing changes to your open source project? Why not just let people do what they're doing and merge the features when they're ready? Well, you can certainly do that if you're the only person on the project. Or maybe if it's just you and a few friends. But if the...
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CI/CD Gets Governance and Standardization

Kubernetes, microservices and the advent of cloud native deployments have created a Renaissance-era in computing. As developers write and deploy code as part of continuous integration and continuous delivery (CI/CD) production processes, an explosion of tools has emerged for CI/CD processes, often...
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Why Unikernels Are Great for DevOps

Unikernels are single-purpose virtual machines (VM). They only run one application—which is interesting when you think about it, because that’s precisely how a lot of DevOps practitioners provision their applications today. There is way too much software to provision nowadays—pools of app servers,...
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How to Set the PATH Variable in Linux

In Linux, your PATH is a list of directories that the shell will look in for executable files when you issue a command without a path. The PATH variable is usually populated with some default directories, but you can set the PATH variable to anything you like. When a command name is specified by...
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