Remove Node from Proxmox Cluster Rumi, September 9, 2020 Step 1 : Migrate all VMs to another active node Migrate all VMs to another active node. You can use the live migration feature if you have a shared storage or offline migration if you only have local storage. Step 2 : Display all active nodes Display all active nodes in… Continue Reading
Add Geolocation to Graylog 2 Rumi, August 16, 2020 The Graylog Map Widget is the plugin providing geolocation capabilities to Graylog. The plugin is compatible with Graylog 2.0.0 and higher, and it is installed by default, although some configuration is still required on your side. This section explains how to configure the plugin in detail. In case you need to reinstall the… Continue Reading
Reclaim disk space from a sparse image file qcow2/ vmdk Rumi, July 23, 2020July 23, 2020 Sparse disk image formats such as qcow2 only consume the physical disk space which they need. For example, if a guest is given a qcow2 image with a size of 100GB but has only written to 10GB then only 10GB of physical disk space will be used. There is some… Continue Reading
Install Jitsi Meet and configure load balancing Rumi, July 14, 2020 Jitsi Meet is an open-source (Apache) WebRTC JavaScript application that uses Jitsi Videobridge to provide high quality, secure and scalable video conferences. It can be used as a replacement for proprietary services like Zoom, Whereby, Teams, Skype and many others. Requirements At least two Linux systems with Debian 10 DNS… Continue Reading
Enable authentication of Jitsi Meet Rumi, July 14, 2020July 14, 2020 A basic installation of Jitsi Meet gets you up and running within shortest time, probably in less than 15 minutes. There are hardly any configuration changes necessary. Most important information is a fully qualified domain name (FQDN), and that’s it. However such a default installation of Jitsi Meet is open…. Continue Reading
Proxmox Cloud-Init OS template creation Rumi, July 2, 2020 Introduction In this guide we will go over creating a Proxmox KVM Template from a Cloud Image. This same process will work for any Cloud-Init Openstack based image type you can find online. Having done a number of these for our Proxmox based VPS service I wanted to post up… Continue Reading
Install Discourse Forum with Nginx on Ubuntu 16.04 Rumi, June 26, 2020 Step 1 – Install Docker on Ubuntu 16.04 The Discourse software is written in Ruby and Javascript, using PostgreSQL as the main database, and Redis as a cache and for transient data. We will install Discourse under the Docker container. The installation process will be carried out on Ubuntu… Continue Reading
Install PHP 7 on CentOS 7 Rumi, May 24, 2020 Enabling Remi repository PHP 7.x packages are available in several different repositories. We’ll use the Remi repository which provides newer versions of various software packages including PHP. The Remi repository depends on the EPEL repository. Run the following commands to enable both EPEL and Remi repositories: sudo yum install epel-release yum-utils sudo yum… Continue Reading
Ubuntu Firewall – UFW useful commands Rumi, May 17, 2020 Prerequisites To follow this tutorial, you will need one Debian 10 server with a sudo non-root user, which you can set up by following Steps 1-3 in the Initial Server Setup with Debian 10 tutorial. Step 1 – Installing UFW Debian does not install UFW by default. If you followed… Continue Reading
Java plug-in does not work in Firefox after installing Java Rumi, May 1, 2020 Tested on Firefox 42 (old release) and Sea-Monkey 2.46/2.49. There are several workaround options. The simplest method is noted first and is recommended. The remaining available options are not recommended for non-technical users. Option 1: Add property name dom.ipc.plugins.java.enabled in Firefox preferences 1. Launch Firefox 2. Type about:config in the… Continue Reading