Ralph is a car enthusiast, blogger, author and teacher. In addition to being the founder of this website, Ralph is also a Linux Systems Administrator with 9 years+ experience who is also available for freelance or full-time work.
Posted on August 8th, 2017.
Administrators of a Canvas LMS installation may encounter a QTI migration error when importing course content, or performing any actions that triggers the QTI migration scripts. This happens because the environment is missing a few essential libraries. This post documents the steps to resolve this in an Ubuntu 14.04 LTS environment. Note that you require Python […]
Posted on May 15th, 2017.
The following are steps to add additional elastic IPs to AWS EC2 Instances: 1 – Associate a new Private IP with the EC2 Instance This is a compulsory step because private IPs can only have one Elastic IP associated with them. Select the Instance, then choose Actions > Manage Private IP Addresses In the Manage […]
Posted on March 4th, 2017.
Spreadsheet_Excel_Writer is a PHP module for generating Excel spreadsheets. The current release is 0.9.3 (Beta) and has not been updated since January, 2012. A developer, Alexey Kopytko patched the package and released an an updated beta (0.9.4), introducing compatibility for PHP versions 5.3 to PHP 5.6. Follow these steps to install the updated version of […]
Posted on March 2nd, 2017.
How to use Rsync with standard Amazon Web Services instances that utilise a .pem key file instead of traditional username/password authentication or conventional SSH key pairs: The standard AWS EC2 instances support using a .PEM key to log in, instead of a more common SSH username/password combination. If you want to use Rsync to transfer […]