Found 29 results
Terminal keyboard shortcuts are very handy, no doubt about this, can save you a lot of time especially when your job is based on using on a daily basis the terminal window, being on your workstation or other remote terminals that you are interacting with. Mastering these terminal keys will clearly give you a huge advantage, as we said previously in terms of time and also productivity, on the same note we can also say that is a must to learn and use these shortcuts. Terminal Keyboard Cheatsheet Lets open now a terminal window and test all below keyboard shortcuts […]
Category: General | Published: 13/12/2018 | Updated: 16/12/2018Send email with Python and smtplib
Send email with Python and smtplib package is just another quick tutorial from Tufora where we will show you in just a few steps how easy is to use Python for sending emails from your applications. This solution uses no more than five lines of code and can be easily implemented within your Python application anytime being defined as a Python module using import statement or simply directly to your main application code. The code below has been tested using Python 3.7 but it can be easily adapted and used on older or newer versions as long the smtplib module […]
Category: Python | Published: 14/11/2018 | Updated: 22/07/2019Yum duplicate package error can occur anytime and most of the times when servers are under provisioned in terms of hardware capacity like RAM memory or even CPU. This can happen when a small server needs to perform multiple updates that requires more resources than usual making the update process almost impossible. Of course, failure is not an option and we will do our best to explain in this short tutorial how to fix yum duplicate errors by using yum-utils utility. So before we start our little journey fixing those yum errors we must say that this solution has been […]
Category: General | Published: | Updated: 14/11/2018Python Try Except statement can help us to handle possible errors within our code, below we will explain its component and also how to use this Try Except Python statement in your code. Let’s try to understand how to use this Python statement and why is this so important in our day to day Python coding. Statement components The first block called try lets you test a block of code for any errors that may appear in your code. Second block called except will handle basically the error that may exist. The third block named finally it is optional and […]
Category: Python | Published: 12/11/2018 | Updated: 12/11/2018Kubernetes Cluster setup on CentOS
Kubernetes Cluster setup on CentOS isn’t that difficult anymore as it used to be in the past where we had to perform some major OS changes in order to build a proper environment. In this short tutorial we will guide you step by step how to actually set up a simple Kubernetes Cluster based on CentOS 7.5 and Kubernetes 1.12.1. Exactly like any other cluster a Kubernetes Cluster must always have an odd number of nodes like 3, 5, 7 and so on but in this particular tutorial we will resume to use only 3 nodes, one master node and […]
Category: Docker | Published: 23/10/2018 | Updated: 02/10/2019SSH client configuration for Jump Host
SSH client configuration for Jump Host is just a simple, fast and efficient way to configure your local SSH client to remote access via SSH other external networks / hosts. In the same time we can say that this solution adds a layer of security as well if your environment is not so secure for whatever reason, we have seen this quite often but let’s not talk about this yet. In this short tutorial we will try explain in a very simple way how you may configure your local SSH client configuration file in order to connect straight to one […]
Category: Security | Published: 10/08/2018 | Updated: 15/11/2018