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Channel: Linux – Danny Tsang
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Replace Disk In LVM On Ubuntu

Overview LVM makes adding and removing physical disk very easy as its an additional layer of abstraction. I will go through the steps need to replace an existing disk of same or larger size. Warning!...

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FreePBX ARI Framework Disabled

I upgraded to FreePBX 12 and had the following disabled moduled: amportal a ma delete fw_ari -f amportal a ma download fw_ari -f amportal a ma install fw_ari -f Running the above in sequence then going...

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Deluge BitTorrent Client On Ubuntu

Overview Deluge is a bit torrent client which uses a client-server like architecture. The cool thing is you can have the server locally (like this install) or remote and just use the client to manage...

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OpenVPN Server On Raspberry Pi

Overview Having a great geek out chat with Andrew Gorton and he gave me the idea of setting up an OpenVPN server using a Raspberry Pi. A simple, relatively cheap solution to get access to resources at...

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Migrating From Ubuntu 14.04 To 16.04

Overview I have written migration plans for Ubuntu upgrades before. What makes it different this time is the hybrid Docker containers that I have used in places and the support for virtual IP (VIP) in...

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Dockerising WordPress

Overview Container software has really picked up in popularity in part thanks to Docker and the concept is great. So much so I wanted to try it on my blog. Topology My setup consisted of a single...

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Ubuntu 16.04 Migration Update

A quick update to my migration process. I had all the servers running 16.04 and it was OK except for the stability. Setting up and moving things were simple enough. I did encounter issues with my...

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Upgrading HAProxy On Ubuntu

Overview Following my earlier post using Vbernat’s PPA to install the latest Haproxy on Ubuntu, there have been several minor versions since the original post. The steps below will show you how to...

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Securing HAProxy Headers

Overview https://securityheaders.io will give a score of how well placed the HTTP headers are on a site ranging from A+ to F (not sure what the R rating is for). Headers are a powerful meta (invisible...

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HAProxy Redirect Unknown Subdomains

Overview It’s possible to redirect non configured sub domains to a different error message rather than a default or error 503 which is a server side error. Edit /etc/haproxy/haproxy.cfg and add the...

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Boot From Grub

Overview When you get the grub command prompt: grub > It means something went wrong with the grub boot leader whether it was not installed properly or it cannot find your hard drive to boot into the...

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Install Gnome Shell Extensions System Monitor on Ubuntu 18.04

Overview With Ubuntu 18.04 LTS switching back to Gnome as the desktop manager from Unity, it means it can take advantage of Gnomes features that replaced unities such as system monitor in the dock....

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Cloud Desktop

Overview Having a persistent cloud environment means no more standby or shutting when you’re moving or leaving the computer. Leveraging cloud computing, it could be as cheap to run or as powerful as...

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Pi-hole DNS Filtering

Overview Pi-hole is a very light weight, DNS filtering server. It’s so light that there are reports it can even run on a Raspberry Pi 1! Example reasons for filtering DNS include blocking ads to...

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Ubuntu 18.04 Desktop Clipboard Sharing Not Working Using VirtualBox

I have a desktop Ubuntu virtual machine(VM) ready to be cloned so I can spin up a VM as quick as possible. Recently, the machines would loose the ability to share clipboard and the fix is below: sudo...

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Home Assistant Introduction

Overview I have been using Home Assistant for 6 months and it has been an amazing investment of time and energy. Home Assistant is like the controller or brains behind any home automation. As a...

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Restructuring Instances With DigitalOcean

Overview I have been using DigitalOcean for hosting my blog as well as other services for a while now. Not only have there been significant advances with the likes of volumes, firewalls, etc for free...

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Enable Coral AI USB On Unraid

Edge computing is becoming more affordable and Coral AI USB is one example: This was running detection at 5 FPS on a Coral AI at 10ms v.s. 2 out of 4 cores on an Intel. To use the Coral AI USB...

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Unraid

Overview I have been using Unraid for over 2 years now and it has a great in-between a full solution such as a NAS dedicated hardware and a homelab DIY solution. The idea was to use it as a server and...

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DigitalOcean Managed (Clustered) Database With WordPress

Overview I have an existing WordPress site running on DigitalOcean on a self managed instance (Droplet). It was time for an OS upgrade and generally I like to start from scratch rather than doing an in...

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