Tag Archives: Ubuntu 20

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. Continue reading “Install Xen Orchestra on Ubuntu 20” »

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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: Continue reading “Install Collabora Online on Ubuntu 20 for Nextcloud” »

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Setup HAProxy Load Balancer for MariaDB Galera Cluster

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If you check the above test scenario and try to create DBs on any of the nodes, you would see that the data would automatically sync between the nodes. Which means Availability is achieved. Now to achieve high availability we will use HaProxy as the loadbalancer.

Set up another VM for this and install HAProxy as follows.

sudo apt-get update
sudo apt-get install haproxy

Edit HA Proxy Config as follows.

sudo vim /etc/haproxy/haproxy.cfg

Add the following lines. Continue reading “Setup HAProxy Load Balancer for MariaDB Galera Cluster” »

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MariaDB Galera Cluster on Ubuntu 20

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MariaDB Galera Cluster is a synchronous multi-master cluster for MariaDB with support for XtraDB/InnoDB storage engines. It has the following top features.

  • It provides active-active multi-master topology
  • You can read and write to any cluster node
  • It has an automatic node joining
  • Automatic membership control, failed nodes drop from the cluster
  • Has true parallel replication, on row level
  • Direct client connections
sudo apt update && sudo apt -y upgrade
sudo reboot

Setup Hostnames

Here’re the IP plans of my servers-

Continue reading “MariaDB Galera Cluster on Ubuntu 20” »

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Install Discourse on Ubuntu 20.04

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Secure the Server

Turn on automatic security updates.

$ sudo dpkg-reconfigure -plow unattended-upgrades

Setup a firewall with ufw.

$ sudo apt-get install ufw
$ sudo ufw default allow outgoing
$ sudo ufw default deny incoming
$ sudo ufw allow 22 comment 'SSH'
$ sudo ufw allow http comment 'HTTP'
$ sudo ufw allow https comment 'HTTPS'
$ sudo ufw enable

Install fail2ban to secure your server

$ sudo apt install fail2ban

Configure fail2ban to Use ufw

Copy the main configuration to avoid unexpected changes during package updates.

$ sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local

Edit the configuration file with your favorite text editor

$ sudo nano /etc/fail2ban/jail.local

Change the banaction and banaction_allports settings to ufw in the file /etc/fail2ban/jail.local as follows: Continue reading “Install Discourse on Ubuntu 20.04” »

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Install phpIPAM on Ubuntu 20.04/18.04

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The objective of this guide is to help you Install and Configure phpIPAM on Ubuntu 20.04/18.04 Linux distribution. phpIPAM is an open-source php-based web IP address management application (IPAM). Its goal is to provide light, modern and useful IP address management. phpIPAM uses MySQL database backend and jQuery libraries, Ajax and HTML5/CSS3 features.

Install phpIPAM on Ubuntu 20.04/18.04

phpIPAM has a number of dependencies that we need to install before we can install and configure phpIPAM. These are:

  • MySQL / MariaDB server
  • php / php-fpm for nginx
  • php modules
  • Apache / nginx web server
  • phpIPAM domain – ipam.example.com (should be replaced with your domain)

Continue reading “Install phpIPAM on Ubuntu 20.04/18.04” »

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Install LAMP with PHP-FPM on Ubuntu 20

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Step 1 – Installing Apache

Apache web server debian packages are available under the default repositories. Login to your Ubuntu system with sudo privileges account. Open a terminal and execute the following commands:

sudo apt update 
sudo apt install apache2 libapache2-mod-fcgid

The above commands will install Apache and FastCGI module to your server.

Step 2 – Install PHP with FPM

Next, install PHP and PHP-FPM on your Ubuntu system. For this tutorial, we choose PHP 7.4 to install using

For the PHP installation we recommend to use ppa:ondrej/php PPA. Execute below couple of commands to add the PPA to your system.

sudo apt install software-properties-common
sudo add-apt-repository ppa:ondrej/php

Then install PHP 7.4 (or required version) the latest version available on the day of writing this tutorial. Simply execute follows commands for the installation of PHP and PHP-FPM packages. Continue reading “Install LAMP with PHP-FPM on Ubuntu 20” »

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Install LibreNMS Monitoring Tool with Nginx on Ubuntu 20.04

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First, it is recommended to update your system packages to the latest version. You can do it with the following command:

apt-get update -y

After updating all packages, install all the dependencies required for LibreNMS with the following command:

apt-get install rrdtool whois fping imagemagick graphviz mtr-tiny nmap python3-mysqldb snmp snmpd python3-pip python3-memcache mtr-tiny acl unzip git curl wget -y

Once all the dependencies are installed, you can proceed to the next step. Continue reading “Install LibreNMS Monitoring Tool with Nginx on Ubuntu 20.04” »

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