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MySQL GTID replication error can happen unexpectedly for various reasons and as often as the classic master slave, circular or multi-master replication but in this short tutorial we will learn, step by step, how to skip MySQL GTID transaction error in order to keep in sync our MySQL slave server. Before we begin we need to say that all below steps were tested in a master-slave setup using MySQL 5.6 and MySQL 5.7, we think that this MySQL skipping transaction method detailed below can be easily applied even for newer MySQL versions like 8+. Please note that all below operations […]
Category: MySQL | Published: 28/06/2018 | Updated: 05/11/2018We all know that the upgrade process for Kapow Kofax has never been easy or somehow straight forward, it requires a bit of extra work to be done in order to make it functional. We are sure that you haven’t landed on this page by mistake and you’re not here to complain about the software itself. We know that the whole upgrading process can be a bit frustrating, no clear documentation is provided by Kofax or maybe a simple shell script that can facilitate the upgrade process. No forums or tutorials about this software or at least a troubleshooting guide. […]
Category: General | Published: 26/06/2018 | Updated: 09/05/2019How to install Elasticsearch 2.4 and OpenResty on CentOS 7
In this tutorial we’ll explain how to install and configure a three node Elasticsearch 2.4 cluster on CentOS 7. Also, we’ll learn how to install OpenResty that will provide a layer of security for our Elasticsearch cluster, Elasticsearch-HQ that will give us some nice metrics, Kopf plugin and of course Kibana. Why ES 2.4? Well it’s complicated but lets say we’ve choose 2.4 just because this particular version isn’t supported anymore by Elastic and some of you may be “forced” to use this version for a while until you redesign your software to comply with a newer version in terms […]
Category: Security | Published: 18/04/2018 | Updated: 05/11/2018Generate SSH Key – Linux, Mac and Windows
In this quick tutorial, Generate SSH Key, we will learn more exactly how to generate a SSH Key in Linux or Mac using a terminal window and also in Windows using Putty. Before we start our little journey we should be clear about one thing, all SSH Keys consists of two parts, a Private Key and a Public Key. In this article we’ll generate both these keys and we’ll learn the importance but also the difference between these two. What is a Pivate Key As we said in our introduction a SSH Key contains a Private Key and a Public […]
Category: Security | Published: 09/02/2018 | Updated: 05/11/2018In this example we will explain how to generate CSR in Linux using shell prompt or terminal window. A CSR is mostly required when you want to secure for example a website or a connection between one or more services that requires a secure connection. Any SSL issuer will always ask you to generate and present a CSR. We’ve chose CentOS for this Certificate Signing Request example as our main operating system. Required packages First step is to make sure that we have openssl and openssl-devel packages installed and updated in order to generate our very first CSR. The package manager […]
Category: Security | Published: 24/01/2018 | Updated: 05/11/2018