Tutorials

Step-by-step technical guides on Docker, Linux, Python, Go, and more.

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monero
2 min readBeginner

How to create a monero wallet

Learn with a few steps how to create a monero wallet in Linux , OSX or windows. Monero is the secure, private and untraceable cryptocurrency.

nginx
1 min readBeginner

How to share internet with Gnome 3 (Fedora 26 also works)

Use you linux computer to share your WiFi connection to ethernet.

sql sql-server tsql select sql-update
2 min readIntermediate

How to UPDATE from SELECT using SQL Server

In this tutorial we explain how to update one table using another one with select clause.

osx
3 min readBeginner

How to fix kernel_task CPU usage on High Sierra (OSX)

We explain how to solve when kernel_task is using too much cpu like 100% or it has high cpu time. In this tutorial we will fix high cpu usage on OSX MacBook Pro and others after high sierra update. Make sure you removed all usb devices!

javascript arrays loops foreach iteration
3 min readBeginner

How to iterate an array in javascript? (the proper way)

In this tutorial we are going to explain how to loop through all the objects in an array using JavaScript.

java random integer
2 min readBeginner

Java: How to Generate random integers in a range

In this tutorial we will explain how to generate a random numbers between a range using different java versions and methods.

nginx
5 min readIntermediate

How to configure WPA2 enterprise on linux LEDE

Steps to configure WPA2 enterprise (802.1x) on linux lede. This will add the ability to have individual usernames and passwords. This will add more security to your WiFi.

html button hyperlink htmlbutton
2 min readBeginner

How to create an HTML button that acts like a link?

When using only HTML, you have to use `

`. For Javascript use onclick event. With boostrap use the btn class. With plain CSS use the appearance: button; property. If you want to see more details read the full tutorial!
html css alignment
2 min readBeginner

CSS Lesson: Horizontally center a div in a div

Learn how to center a div within a div using flex, css2 and css3. We preset multiple solutions to solved this problem and with cross browser compatibility.

git git-branch git-remote
2 min readBeginner

How to delete a Git branch and tags locally and remotely?

Learn how to use git to delete local and remote branchs. We also include how to delete tags.