Cryptocurrency & Blockchain Bridges

In alphabetical order:

Let us know if you want to see any other decentralized digital asset bridges in the Comments section below!

Installing postgres (PostgreSQL) database on Ubuntu 22


sudo apt update
sudo apt upgrade
sudo apt install postgresql postgresql-contrib postgresql-client-common

Start PostgreSQL service:

sudo systemctl start postgresql.service


Switch to postgres account; the installation of PostgreSQL automatically created a user account named “postgres”. Switch to this account for accessing the PostgreSQL database:

sudo -i -u postgres

Create new role

createuser --interactive

Create database

createdb exampledatabasename

Create a new Linux user

sudo adduser exampleusername

Switch to your user

sudo -i -u exampleusername

Connect to database


Check connection information


Distilled from How to Install and Set up PostgreSQL Database on Ubuntu 22.04 on Linux Hint. For more details:

PostgreSQL/postgres cheat-sheet:

Installing PHP extension imagick manually because it’s missing in cPanel/WHM EasyApache 4

We needed imagemagick installed on our server for nextCloud, but imagick is missing/unavailable in EasyApache 4.

Fortunately, we found the following instructions, which worked perfectly for us on our cPanel/WHM server for PHP versions 7.4, 8.0, and 8.1…

Original source:

Originally written by Justin Catello

This is fairly simple, just copy and paste the following into SSH.

1. Installing imagemagick:

yum -y install ImageMagick-devel ImageMagick-c++-devel ImageMagick-perl

2. Installing the imagemagick PHP extensions for all installed PHP versions.

for phpver in $(whmapi1 php_get_installed_versions|grep -oE '\bea-php.*') ; do
printf "\autodetect" | /opt/cpanel/$phpver/root/usr/bin/pecl install imagick
echo '' >> /opt/cpanel/$phpver/root/etc/php.d/imagick.ini

3.  Test to make sure imagemagick is installed:

/usr/bin/convert --version

4. Test to make sure the PHP extensions loaded:

for phpver in $(whmapi1 php_get_installed_versions|grep -oE '\bea-php.*') ; do
echo "PHP $phpver" ; /opt/cpanel/$phpver/root/usr/bin/php -m |grep imagick
PHP 54
PHP 55
PHP 56
PHP 70
PHP 71

Canadian Cryptocurrency Onramps & Offramps

By onramps & offramps, we mean venues/forums/companies that allow us to transfer in fiat/dollars for conversion to cryptocurrency (e.g. Bitcoin/BTC, and Ethereum/ETH), and conversely allowing the swap/exchange of cryptocurrencies to fiat/dollars along with withdrawal.

This post/page focuses on Canadian cryptocurrency onramps & offramps, because our government’s regulatory entities are so out-of-touch with digital currencies & assets – Canada, and especially the province of Ontario, have some of the highest-friction and most restrictive regulations of any developed nation – as of this writing, residents of Ontario, Canada cannot use Binance & FTX.

Currently, these options are in no particular order:

None of the statements herein are provided as financial advice, and are not to be taken as such. Always DYOR (Do Your Own Research), and consider consulting a financial advisor/professional (a real one, not one of the fake advisors that scammers are fraudulently pushing everywhere they can spam).

Please leave us a comment below if we missed any note-worthy options.

Restart VirtualBox Guest Additions inside a Linux VM

tl;dr the command-line solution to run inside your Linux VM:

sudo pkill -fx "/usr/bin/VBoxClient --clipboard" && /usr/bin/VBoxClient --clipboard

Background / Details / Synopsis

Now and again, copy & paste functionality can break between a Microsoft Windows host and its Linux guest VM (Virtual Machine) when using Oracle’s VirtualBox.

Symptoms include not only the inability to paste text, but also application freezes/lockups. For example, we found that Google Chrome on Windows became unresponsive for ~1 minute, when trying to paste text that was copied from our Linux VM, but would return to normal after.

A solution that works for us is to restart the VirtualBox Guest Additions inside the Linux VM, discussed here: How to restart Guest Additions?