Tags: Tools

How Service Meshes Are a Missing Link for Microservices

It is now widely assumed that making the shift to microservices and cloud native environments will only lead to great things — and yet. As the rush to the cloud builds in momentum, many organizations are rudely waking up to more than a few difficulties along the way, such as how Kubernetes and...
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Kubernetes
This tutorial describes the steps required to set up a multi-node Kubernetes cluster for development purposes.

Kubernetes Setup Using Ansible and Vagrant

This blog post describes the steps required to set up a multi node Kubernetes cluster for development purposes. This setup provides a production-like cluster that can be set up on your local machine. Why do we require multi node cluster setup? Multi node Kubernetes clusters offer a production-like...
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A Linux Sysadmin’s Guide to Network Management, Troubleshooting and Debugging

A system administrator’s routine tasks include configuring, maintaining, troubleshooting, and managing servers and networks within data centers. There are numerous tools and utilities in Linux designed for administrative purposes. In this article, we will review some of the most used command-line...
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mlocate
In this series of articles, we’ll look at the mlocate tool and examine how to quickly and easily tune it to your own specifications.

Finding Files with mlocate

Learn how to locate files in this tutorial from our archives. It’s not uncommon for a sysadmin to have to find needles buried deep inside haystacks. On a busy machine, there can be hundreds of thousands of files present on your filesystems. What do you do when you need to make sure one particular...
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The What and the Why of the Cluster API

Throughout the evolution of software tools there exists a tension between generalization and partial specialization. A tool’s broader adoption is a form of natural selection, where its evolution is predicated on filling a given need, or role, better than its competition. This premise is imbued in...
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Understanding GCC Warnings

Most of us appreciate when our compiler lets us know we made a mistake. Finding coding errors early lets us correct them before they embarrass us in a code review or, worse, turn into bugs that impact our customers. Besides the compulsory errors, many projects enable additional diagnostics by using...
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Chasing Linux Kernel Archives

Kernel development is truly impossible to keep track of. The main mailing list alone is vast beyond belief. Then there are all the side lists and IRC channels, not to mention all the corporate mailing lists dedicated to kernel development that never see the light of day. In some ways, kernel...
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Tutorial: Tap the Hidden Power of Your Bash Command History

Last month I wrote about combining a series of Unix commands using pipes. But there are times where you don’t even need pipes to turn a carefully-chosen series of commands into a powerful and convenient home-grown utility. ... The echo command repeats whatever text is entered after it, for example...
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Mozilla Releases Iodide, an Open Source Browser Tool for Publishing Dynamic Data Science

Mozilla wants to make it easier to create, view, and replicate data visualizations on the web, and toward that end, it today unveiled Iodide, an “experimental tool” meant to help scientists and engineers write and share interactive documents using an iterative workflow. It’s currently in alpha, and...
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BackBox
BackBox Linux makes penetration testing easy in various environments.

BackBox Linux for Penetration Testing

Any given task can succeed or fail depending upon the tools at hand. For security engineers in particular, building just the right toolkit can make life exponentially easier. Luckily, with open source, you have a wide range of applications and environments at your disposal, ranging from simple...
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