Ubuntu 20

Install and Setup TIG Stack on Ubuntu 20.04

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In this tutorial, we are going to learn how to install and setup TIG Stack on Ubuntu 20.04.

TIG stack is a group of powerful open-source monitoring tools, Telegraf, InfluxDB and Grafana where;

  • Telegraf is an open-source server agent for collecting and sending metrics and events from databases, systems, and IoT sensors.
  • InfluxDB is an open-source time series database and provides datastore for metrics, events, and real-time analytics.
  • Grafana is a data visualization and monitoring tool and supports time series datastores such as Graphite, InfluxDB, Prometheus, Elasticsearch.

TIG stack can be used for monitoring system metrics such as memory, disk, logged in users, system load, swap usage, system uptime, system processes. 

Installing and Setup TIG Stack on Ubuntu 20.04

In order to install TIG stack, you need to install and setup each individual component of the stack, Telegraf, InfluxDB, Grafana.

Run System Update
To begin with, ensure that your system packages are up-to-date;

apt update
apt upgrade

Install Telegraf on Ubuntu 20.04

You can install Telegraf on Ubuntu 20.04 either by downloading the DEB package file or directly from the InfluxData repos.

Install Telegraf using DEB Package File

To install Telegraf using the DEB binary, grab the binary installer from the InfluxData downloads page. You can simply obtain the link to binary installer and pull it with wget;

wget https://dl.influxdata.com/telegraf/releases/telegraf_1.14.3-1_amd64.deb

Once you have the binary downloaded, you can install it as follows

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Setup Apache, FastCGI and PHP 7.4 on Ubuntu 20

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Prerequisites

Update the installed packages.

apt update

Install the Ondřej PHP repository.

apt install software-properties-commonsudo
add-apt-repository ppa:ondrej/php
apt update

Check that the repositories are correctly installed.

grep ^ /etc/apt/sources.list /etc/apt/sources.list.d/*

Step 1 – Install Apache

apt install apache2

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Install InfluxDB on Ubuntu 20

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InfluxDB is a time-series database licensed under open source. It helps to collect metric data from devices such as servers, switches, virtual servers, ups and plot graphs in realtime. It is written in Go language and optimized for fast and high availability.

Enabling Repository

Install InfluxDB by importing the key and enable the required repository.

$ wget -qO- https://repos.influxdata.com/influxdb.key | sudo apt-key add -
$ source /etc/lsb-release
$ echo "deb https://repos.influxdata.com/${DISTRIB_ID,,} ${DISTRIB_CODENAME} stable" | sudo tee /etc/apt/sources.list.d/influxdb.list

Install InfluxDB

Right after enabling the repository, Install Influxdb packages by running package manager for the respective operating system.

Use apt for installing on Ubuntu Linux distributions

Installing on Ubuntu

To install the influxdb on Ubuntu use the apt.

$ sudo apt-get update
$ sudo apt-get install influxdb

Enable the Service

Right after installing the package enable the service to start persistently, however don’t start it.

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Install MySQL 5.7 on Ubuntu 20.04

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Prerequisites

  • Linux servers running Ubuntu 20.04
  • root privileges

Step 1 – Add MySQL APT repository in Ubuntu

Ubuntu already comes with the default MySQL package repositories. In order to add or install the latest repositories, we are going to install package repositories . Download the repository using the below command:

sudo apt update
sudo apt install wget -y
wget https://dev.mysql.com/get/mysql-apt-config_0.8.12-1_all.deb

Once downloaded, install the repository by running the command below:

sudo dpkg -i mysql-apt-config_0.8.12-1_all.deb

In the prompt, choose Ubuntu Bionic and click Ok

The next prompt shows MySQL 8.0 chosen by default. Choose the first option and click OK

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Mount Oracle Object Storage to Ubuntu Linux

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Step 1. Install s3fs on an OCI compute instance running Ubuntu

SSH remotely into your Ubuntu server and run sudo apt update to update your system repository. Then type the command 

sudo apt install s3fs awscli -y 

to install S3fs on your system. To verify proper installation, run which s3fs and you should be able to see the path of the program.

Note: refer to our other tutorials  on how to create and connect to cloud compute instance through Bastion host.

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Troubleshooting ubuntu: dpkg: unrecoverable fatal error, aborting: files list file for package ‘linux-generic’ is missing final newline

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If you ever encounter with such similar of an error (in my case it occurred on my Ubuntu 20 distro), you may apply the following process to get a fix. 

The error:

Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
apt apt-transport-https apt-utils dpkg libapt-inst2.0 libapt-pkg5.0 ntpdate
oracle-java8-installer oracle-java8-set-default thermald
10 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/4,389 kB of archives.
After this operation, 8,192 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Preconfiguring packages ...
dpkg: unrecoverable fatal error, aborting:
files list file for package 'linux-generic' is missing final newline
E: Sub-process /usr/bin/dpkg returned an error code (2)

Disclaimer: it worked for me, that doesn’t necessary means that would work same for you! However, you may give it a try.

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Install Zabbix 5.x Monitoring Server on Ubuntu 20.04

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Zabbix is a free, open-source, and high-performance monitoring tool for servers, applications, and network devices. It uses agents to collect system metrics. It also monitors standard services such as SMTP or HTTP services and supports host monitoring via SNMP, TCP, and ICMP checks. It is designed for real-time monitoring of thousands of servers, VMs, and network devices. It uses MySQL/MariaDB database to store its data and also supports encrypted communication between the server and connected clients.

In this tutorial, we will explain how to install the Zabbix monitoring server on Ubuntu 20.04.

Prerequisites:

  • A fresh Cloud instance with Ubuntu 20.04 installed.
  • A root password is set up to your instance.
  • Create a new instance and connect to your instance as the root user.

Once you are logged into your Ubuntu 18.04 instance, run the following command to update your base system with the latest available packages.

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Install Zabbix Agent on Ubuntu 20.04

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Zabbix agent is installed on the remote host (target) to monitor the hard drive, memory processor, etc. The agent collects data and sends back to Zabbix Server.

Zabbix agents can use passive or active checks to pass information. In passive check, Zabbix server (poller) requests an agent for certain information, and the agent sends back a value. In the active check, the agent process all data and pushes it to the Zabbix server. However, agent periodically connects the server to collect metric which needs to be monitored.

We will begin by installing Zabbix agent to the remote Ubuntu 20.04 host and later add a host to Zabbix server dashboard.

Step 1: Enable Zabbix repository on remote host

Begin by updating the package lists on the remote host.

sudo apt update

Then download the Zabbix repository Debian file from Zabbix download center as follows.

wget https://repo.zabbix.com/zabbix/5.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_5.0-1+focal_all.deb

Then enable it using the dpkg command as follows:

sudo dpkg -i zabbix-release_5.0-1+focal_all.deb

Next, update the package index to ensure the repository is synced

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Install Xen Orchestra on Ubuntu 20

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Prework

apt-get update && apt-get dist-upgrade

Node.js

For this particular installation node 16 is needed to be installed. Lets install-

Add NodeSource PPA

This command will add PPA sources required to be able to install NodeJS 16 on your Ubuntu 20.04 installation:

curl -s https://deb.nodesource.com/setup_16.x | sudo bash

Install NodeJS 16

Now that the PPA source has been added, we can install NodeJS 16 on our Ubuntu 20.04 installation. Run the following command:

sudo apt install nodejs -y

Tip: The -y flag means we’re not prompted to confirm our choices.

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Install Collabora Online on Ubuntu 20 for Nextcloud

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First, log in to your Ubuntu 20.04 server through SSH as the root user or any other user with sudo privileges:

ssh root@IP_Address -p Port_number

You will need to replace ‘IP_Address‘ and ‘Port_number‘ with your server’s respective IP address and SSH port number. Additionally, replace ‘root’ with the username of the system user with sudo privileges.

You can check whether you have the proper Debian version installed on your server with the following command:

$ lsb_release -a

You should get this output:

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.3 LTS
Release: 20.04
Codename: focal

Before starting, you have to make sure that all Ubuntu OS packages installed on the server are up to date. You can do this by running the following commands:

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