Linux

NGiNX SSL Setup and 301 Redirects

NGiNX SSL setup and 301 redirects, this is how is called our next tutorial where we will explain in just a few easy steps how to setup a SSL certificate on NGiNX and also how to force client browser to use HTTPS by managing all necessary 301 redirects served from HTTP protocol on port 80 to HTTPS protocol on port 443. The journey from a non-secured domain to a secured one is quite easy to implement with NGiNX and also very easy to maintain and renew in the future. This solution was tested using a CentOS 7 server but it […]

Category: General | Published: 06/04/2019 | Updated: 02/06/2019

Install vips, vips-tools and vips-devel (libvips) on CentOS 7

In this tutorial we will talk about how to install vips, vips-tools and vips-devel (libvips) on CentOS 7. These packages can be required for various reasons like for example during installation of some NodeJS packages like GraphQL. Vips tools and development packages can be easily obtained and installed from Remi repo, unfortunately by default these packages are not present on CentOS repos. So let’s start our short step by step tutorial tutorial about installing Vips on CentOS 7. Table of contents Install Epel repo Install yum-utils Install and enable Remi repo Install vips (libvips) Install Epel repo On our very […]

Category: General | Published: | Updated: 23/04/2019

Resize RAID 0 array by adding new disks

In this tutorial called Resize RAID 0 Array by Adding New Disks we will learn how to extend an existing RAID 0 Array in just a few easy steps via CLI. Before starting to resize your RAID 0 array please do take a backup of your data, this is very important as the resize action can lead to data loss. It’s well known that RAID 0 architecture by definition is very fast but in the same time it is not the safest, at any time one of the disks can fail and the entire array could be lost. It is […]

Category: General | Published: 10/01/2019 | Updated: 23/04/2019

Terminal Keyboard Shortcuts

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: 16/12/2018

Yum fix duplicate error

Yum 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: 14/11/2018 | Updated: 14/11/2018

Setup an SFTP Server on CentOS

Set up an SFTP server on CentOS is our next tutorial where we will guide you as always, step by step, how to build from scratch such a server. We all agree that an SFTP server can be quite handy or sometimes a must if for example one or more applications within our stack requires file transfer between different processing steps or maybe for backups. In this tutorial we will learn how to build an SFTP server on CentOS 7 and OpenSSH 7.4 and also providing you two authentication solutions, first one being based on using basic password authentication and […]

Category: General | Published: 08/11/2018 | Updated: 14/12/2018