ArchiveMay 2019

Installing and setting up Grafana in CentOS 7


Grafana is a time series analytics tool to measure and visualize a whole array of metrics. The most common usage is in datacenter and enterprise environments, but it can also be used for industrial sensors, home automation, weather and deployment control. An open source software, Grafana is currently the leading tool for sysadmins and devops that want to integrate an extremely versatile analytics...

How to install Prometheus in CentOS 7


Prometheus is a server monitoring service. It collects metrics (values) from configured target servers at certain preset intervals, evaluates certain rules and expressions, displays results, and can trigger alerts when certain conditions become true (excessive CPU usage, system run out of memory, run out of space on disk, etc.). Prometheus raises, however, monitoring on a much more complex level...

How to install and use Htop – a process monitoring application on a Linux system


Htop is an interactive and dynamic application for real-time process monitoring on Linux/Unix systems, being the alternative to the familiar top command, pre-installed on most Linux distributions. Htop has several funtions and features that are not available with the top command: • The htop can be scrolled vertically to view all processes, but also horizontally for full view of the control panel...

14 essential actions after installing Xubuntu 16.04 Xenial Xerus LTS


I installed Ubuntu minimal 16.04 Daily Build and I selected the Xubuntu Minimal Installation option. The personalization of Xubuntu 16.04 Xenial Xerus 1. Upgrade the system sudo apt-get update sudo apt-get upgrade 2. Install additional drivers Go to Settings – Additional drivers and choose from what is offered; If nothing appears here, you must manually install the video drivers. 3. Install...

Initial settings of a CentOS 7 VPS server


The basic settings of a VPS server with CentOS 7 are similar to those in Ubuntu. The steps below will increase server security with CentOS 7. I must specify that all tests and installations from both this article and the following are made on a VPS server purchased from but should work smoothly on any VPS server or dedicated with CentOS. At the same time, the system I connect to the...

How to check and monitor a hard drive in Linux


SMART (Acronym for Self-Monitoring, Analysis and Reporting Technology) can be found on all modern hard drives, allowing for the detection of conditions and the reporting of the times a unit can “fall” permanently. Smartmontools is a free multiplatform tool that uses the S.M.A.R.T. of hard drives to get informed about their status. With Smartmontools, a user or system administrator can...

BASH SHELL personalization of the prompt from the Linux terminal


Bash (Bourne Again Shell) is a superset of the Shell Command Language (SH) that allows for a lighter, more legible syntax that brings improvements. At baseline, a bash command or a bash script receives input data from a terminal, from a file descriptor or from a string, then runs and outputs output data. Linux distributions often use a classic prompt in the terminal, displaying the user name...

Systemback – Restoring a Ubuntu Server to a previous state in a few steps


I think I discovered the simplest backup method for a Ubuntu server which is Systemback. Sure, there is rsync, which does incremental backup, but it is more difficult to restore the server later. Systemback can back up and restore a Ubuntu-based system; it means it works on both Ubuntu Desktop and Ubuntu Server. I will just limit myself to describing its operation on Ubuntu Server. Systemback is...

How To Search Google using The Linux Terminal


Let’s suppose you are working in the terminal (change permissions, edit configuration files, etc.) and, to save time, you can search directly on Google without leaving the command line. The application for Google searching in the command-line is called Googler. It can be used as a standalone application, or in combination with a text-based web browser (example: Links). Googler is developed...

How to test the speed of the internet connection in the Linux terminal


Speedtest is the most widely used internet speed test tool. In graphic mode, it’s very simple to use. But Speedtest in the terminal? Yes, this is also possible: Linux has unlimited possibilities. What is speedtest-cli? The application is written in Python and measures the speed of the internet connection in bidirectional way, using the infrastructure. Speedtest-cli lists...

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