Found 11 results
SSH 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: 15/11/2018In this tutorial called dump MySQL table and import we will learn how to export a single database table using mysqlpump utility instead of exporting an entire database and also we will guide you how to import a single database table using different methods. Exporting a single table can be very handy when you have to update or replace another database table that is not part of a cluster or maybe you simply need it for your development environment to perform some quick changes or various tests. In this example we will use MySQL 5.7 and MySQL Client (CLI) based […]
Category: MySQL | Published: 08/08/2018 | Updated: 23/04/2019In this tutorial called create MySQL slave by cloning we’ll try to guide you through a very detailed but in the same time simple process to create a MySQL slave, also known as MySQL replica, by using a fresh backup taken from an existing MySQL server referred here as MySQL master server. Assuming that our master database is 11TB large we’ll have to copy its data content from US, where the master server is located to another server located in a UK data centre, not quite an easy task with this amount of data or without using a costly commercial […]
Category: MySQL | Published: 06/07/2018 | Updated: 05/11/2018How 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: 05/11/2018In this example we will explain how to create user in Linux and how to protect this user by setting up a password for it, we will demonstrate how to create a user account and not a system account. For this particular example we’ll use CentOS 7 as our main operating system and all the above tasks will be performed using shell prompt. Connecting to our environment As we mentioned before will be using shell prompt in our example and we’ll have to initiate a SSH connection in order to connect to our CentOS 7 environment. We can use Putty […]
Category: General | Published: 08/02/2018 | Updated: 05/11/2018