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In this tutorial, we will show you how to install and configure the ELK Stack on CentOS 7. Elasticsearch, Logstash, and Kibana are the three open-source products which are part of the collection called ELK stack. It is a robust solution for search, analyzes, and visualization of data. The task of installing ELK Stack on CentOS 7 should be easy, you just need to follow the steps which are given below and the job will be done in less than ten minutes.

We will show you how to list all databases in MySQL. MySQL is an open-source relational database management system commonly used with web based applications like WordPress, Magento etc. In this tutorial we will show you how to list all databases in MySQL on a Linux VPS.

SSH or Secure SHELL is the most popular and trusted UNIX-based cryptographic network protocol. It can be used for a secure data communication, remote server logins, remote command execution, and many other secure network services between two networked servers. Normally, password authentication is used to connect to a remote server via SSH but in this tutorial we will show you how to login to your Ubuntu 16.04 VPS using SSH keys. We will generate a key pair (private and public key), place the private key on your server and then use your locally stored private key to gain access to your server. This method provides a more secure way of connecting to your server, instead of just using a password.

I think we all have encountered the issue. Do you know what 502 bad gateway error means? Do you know how to solve the issue? In this blog post, we will provide you with detailed information about the 502 Bad Gateway Error in WordPress, and tell you how to troubleshoot the 502 Bad Gateway Error in WordPress as well.

Today we are going to show you how to install Matomo on Ubuntu 16.04. Matomo (formerly known as Piwik) is a free and popular analytics platform currently used by individuals, companies and governments all over the world.

Let us show you how to install MySQL on your CentOS 7 server. MySQL is a relational database management system that functions through the use of a query system. Created in 1995, it’s an open-source project that is currently developed by Oracle, and has existed since 1995.

When it comes to sending personal information over the Internet, whether it is account information, credentials, contact information, location information or anything else that may be abused, the public is, to a large extent, purely paranoid to hackers and identity thieves.

We will show you how to install Webmin on a Debian 9 VPS. Webmin is a web-based system configuration tool for Linux and it is supported on many distributions like Debian, Ubuntu and CentOS.

In this tutorial we will show you how to install and configure the ELK Stack on Debian 9. ELK stack is a collection of three open-source products, Elasticsearch, Logstash and Kibana and is a robust solution for searching, analyzing and visualizing data.

ERR_SSL_VERSION_OR_CIPHER_MISMATCH error shows in your web browser when the browser cannot establish secure connection with the web server. Today we will show you how to fix ERR_SSL_VERSION_OR_CIPHER_MISMATCH error.

Objects that are given by names and contain data used by at least one, usually multiple applications are called environment variables. Put simply, an environment variable is nothing more than a variable that has a name and a value.

In this tutorial, we will show you, how to use the Ubuntu crontab. In a few simple steps, we will explain, how to automate your system tasks on your Ubuntu server, using the crontab in Ubuntu. The cron software utility is a time-based job scheduler in Unix-like operating systems. Cron is driven by a crontab (cron table) file, a configuration file that specifies shell commands to run periodically on a given schedule.

Jekyll is Ruby based, free and easy to use site generator, designed for creating static blogs, but it can be also used for creating all types of static websites as well, without using a database. Jekyll works by processing plain text files in Markdown and Textfile or Liquid templates and generating static website.

Ubuntu and Debian both use packages to add to the system’s capabilities, allowing users to do more with their machines. However, as great as this package system is, things can still break.

Buildbot is a continuous integration tool based on Python which automates the build, test and release software cycles. It is built using the Twisted networking engine, supports parallel execution of jobs across multiple platforms and it is compatible with all major operating systems.

n this tutorial we will show you how to fix 503 service unavailable error in WordPress, on a Linux based virtual private server. If you encountered 503 service unavailable error in WordPress follow the steps below to investigate it and fix the problem. The 503 service unavailable error has a lot of potential causes. To be able to fix the 503 service unavailable error in WordPress, you will have to identify the root cause of the problem. First, make sure that you have SSH or FTP access to the server, and you are able to modify the WordPress files. Connect to your Linux server and follow the instructions.

AWK is named after the last names of its authors: Alfred Aho, Peter Weinberger and Brian Kernighan. AWK is a very useful scripting language for text processing. In this tutorial, we will show you some practical examples on how to use AWK on a Linux based VPS.

In this tutorial, we will show you how to set up Nginx High Availability cluster using Pacemaker on CentOS 7. To have an Nginx server that can operate continuously without failure for a long time, we need to configure the server with active-passive Nginx instances. Pacemaker is an open source cluster manager software that achieves maximum high availability of your services.

In this tutorial, we will explain the meaning of Secure Connection Error in WordPress and why it happens and then explain some of the methods on how to fix Secure Connection Error in WordPress.

We will show you How to Fix the Leverage Browser Caching Warning in WordPress, on a Linux based virtual private server. Leverage Browser Caching is a warning which you may encounter if you run a speed or performance test for your website using some of the tools which are available online.