Found 32 results

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

Empty file content on Linux

Empty file content on Linux can be quite handy when for example you want to empty a small or a very big log file or any other similar files that could take long time to open, select all lines and finally remove these lines. We know is not so complex to go down this path but for sure is time consuming, too many operations we would say for such a simple task. This quick tutorial will show you ten easy ways how to empty a file on Linux without opening or editing files, nothing fancy or advanced stuff but as […]

Category: General | Published: 06/11/2018 | Updated: 06/11/2018

Kubernetes 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: 02/10/2019

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: 15/11/2018

Copy MySQL Table

Copy MySQL table, the simple process of copying a MySQL database table will be now explained in this short tutorial. Quite often we need to check some new queries, features or simply we need perform some basic tests that can be very difficult or sometimes impossible to be taken on a live database table. Luckily MySQL can help us to copy a database table with or without indexes and triggers, a full table copy or we can simply take a simple table copy, just the data and nothing else. In this short tutorial we will guide you how to take […]

Category: MySQL | Published: | Updated: 08/11/2018

Access MySQL without password

Access MySQL without password locally may be sometimes needed and quite handy for various reasons like for example if you are a very passionate database developer or just occasionally doing DBA stuff and you desperately need to quickly access a specific database or table, can be quite annoying to type in your username and password each time you are using the console. In this very short tutorial we’ll talk about how to access MySQL without using a password locally via terminal window. We have tested this method using MySQL version 5.6 and 5.7 based on CentOS 7 operating system but […]

Category: MySQL | Published: | Updated: 05/11/2018