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Fix ERROR: zclient.IO_ERROR (invoke Connection refused, server: localhost) (cause: java.net.ConnectException Connection...

Ever encountered this error " INFO: I/O exception (java.net.ConnectException) caught when processing request: Connection refused INFO: Retrying request ERROR: zclient.IO_ERROR (invoke Connection refused, server: localhost)...

Best Linux Distributions 2018 – Linux Mint 18 complete review

In the continuation of our Best Linux Distributions 2018. In this post, we'll take a closer look at Linux Mint 18. This distribution has been...

Install OpenOffice and LibreOffice on MacOS Sierra

Hi good people. On our last article about OpenOffice and LibreOffice, we looked at how to install OpenOffice on Kali Linux, Ubuntu/Debian, and CentOS/Fedora....

Zimbra Firewall Configuration with ufw for Ubuntu and firewalld for CentOS

In this guide, we're going to look at how to secure your Zimbra collaborative suite on CentOS 7.x and Ubuntu server using Firewalld and...

Best Linux Distributions 2018 – Arch Linux complete review

This is a continuation of our list of Best Linux Distributions 2018. Here we’re looking at Arch Linux. The father of Arch Linux is no other than...

Best Linux Distributions 2018 – Fedora 27 complete review

This is a continuation of our list of Best Linux Distributions 2018. Here we're looking at Fedora 27. Fedora 27 - Introduction Red Hat is known for...

Backup MySQL databases to Amazon S3

In this guide, I'll take you through the steps to Backup MySQL databases to Amazon S3 on Ubuntu and CentOS based MySQL servers. Amazon S3 is...

Installing netdata on CentOS 7

Netdata is Linux, FreeBSD, and MacOS compatible tool used for distributed real-time performance and health monitoring of systems. Netdata is one of the best real-time...

How to install and use desktop dimmer on Ubuntu 16.04...

Hello good people, welcome to our guide on how to install and use a desktop dimmer on Ubuntu 16.04, Arch and macOS. Desktop dimmer is...

How to launch Kubernetes cluster using Rancher

Welcome to our complete guide on How to launch Kubernetes cluster using Rancher on Cloud, Virtual Machine ( VMware, VirtualBox, Openstack) or a dedicated server...