Linux

Create CoreOS Container Linux Ignition File

With all recent changes within CoreOS’s Container Linux distribution one of the most notable change is related to the Ignition file, basically this file handles the configuration for any Container Linux installation and we can say that it is pretty powerful. The concept behind this is somehow simple but as we have already said, quite powerful, allowing the users to configure the operating system right from the start with all basic and advanced settings needed. In this short tutorial we will cover the basics of how to create a simple .yaml CoreOS Container Linux ignition config file and how to […]

Category: General | Published: 10/01/2020 | Updated: 10/01/2020

CoreOS Static IP Address

CoreOS static IP address configuration it is quite straight forward even though when we build a CoreOS cluster, DHCP should always be the standard setup. CoreOS has been cleverly designed to discover all new nodes that are joining in the same the network – with some extra configuration – but, in some cases, for various reasons, DHCP may not be an option and that is why in this short tutorial we will be showing you how to set up a static IP address on CoreOS by using a basic example. The solution for setting up a static IP is not […]

Category: General | Published: 05/12/2019 | Updated: 06/12/2019

Setup Squid proxy with caching on CentOS

Squid Proxy setup with caching on CentOS is our next short tutorial where we will learn how to install Squid in just a few easy steps, with caching enabled on a CentOS VM. Squid is still one of the best software for setting up a proxy that comes packed with many great features like caching, authentication and many others despite the fact that it has a very small footprint in terms of resources compared to many other solutions available on the market. By using Squid’s caching feature we can save a lot of bandwidth and we can even reduce the […]

Category: General | Published: 26/08/2019 | Updated: 13/09/2019

NGiNX Traffic Split

NGiNX traffic split or traffic distribution can be very handy in various user cases, for example this can be used to improve security for our websites or web applications. In this particular tutorial we will show you how to make use of this great feature that comes with NGiNX by implementing a simple solution for traffic distribution in order to protect our backend web applications or maybe a websites by simply using two individual backend upstreams. Same traffic management principle using NGiNX, explained below, can be used for various other backend services and solutions within various stacks. Table of contents […]

Category: Security | Published: 03/07/2019 | Updated: 12/08/2019

NGiNX Reverse Proxy Caching Setup

NGiNX reverse proxy caching can boost your website or web application loading speed when enabled and properly configured. We all know that NGiNX, at least for now, is one of the best software mainly used for web servers but NGiNX has more amazing capabilities, can be easily used as Reverse Proxy and even as Load Balancer within any stack, can be used in many other cases but these are the common scenarios. In this very short tutorial we will be focusing on its caching capability, more precisely caching with NGiNX when used as Reverse Proxy for backend web servers. Table […]

Category: General | Published: 03/06/2019 | Updated: 07/08/2019

Secure NGiNX with Let’s Encrypt SSL on CentOS 7

Just another tutorial from Tufora where we will be showing you how to secure NGiNX with Let’s Encrypt SSL on CentOS 7. As you are well aware NGiNX is a very powerful software that can be used for various applications and workloads being as HTTP server, reverse proxy, load balancer and nowadays even as router for containers, pretty good portfolio we would say. On this tutorial we will be focusing on securing a NGiNX deployment with a SSL certificate issued by Let’s Encrypt (letsencrypt) using certbot utility on a CentOS 7 server. Table of contents Package instalation Generate Diffie–Hellman Exchange […]

Category: Security | Published: 31/05/2019 | Updated: 19/07/2019