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Trinh Nguyen
3,992 followers -
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A human being...

3,992 followers
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How to deploy OpenStack in a single machine using conjure-up in Ubuntu 16.04
I'm sure that you heard a lot about the greatness of Canonical's conjure-up tool and how easy it is to deploy cloud platforms e.g. Kubernete, OpenStack etc... According to the conjure-up and Ubuntu websites, it's straightforward to have those big stack inst...
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Simple real time search and filter using jQuery
Let's say you have a list of HTML elements (div) and you want to implement the search and filter functionality. Here is dead simple example: Assuming your HTML block looks like the following: <div> <input type="text" id="search" placeholder="Type to search"...
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Reset the containerized OpenStack Dashboard admin's password using JuJu
If you're running a containerized OpenStack's architecture (e.g. conjure-up will deploy OpenStack this way), you must have a tool to orchestrate all the containers. I'm using Ubuntu's JuJu  and really love it. For example, in order to reset the OpenStack Da...
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How to access OpenStack Dashboard installed in a headless Ubuntu server using conjure-up
After I finished installing OpenStack using Ubuntu's conjure-up on a single machine , I found myself struggle to access the dashboard. The only machine that can access the OpenStack Dashboard is the host server which is a headless Ubuntu server. It's becaus...
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Get url parameter using javascript
This is pretty neat javascript snippet to get the URL's parameters: var getUrlParameter = function getUrlParameter(sParam) {     var sPageURL = decodeURIComponent(window.location.search.substring(1)),         sURLVariables = sPageURL.split('&'),         sPa...
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Import patrons background task not working in Destiny after deploying SSL
After applying SSL to our Follet's Destiny (library management system) server, the background task to import and update patron from csv files stop working. We spent several days trying to figure out why but not luck. Then accidentally I fixed it simply by t...
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How to fix Moodle user keeps being redirected to user profile page after login
One day you noticed a user keeps being redirected to the Moodle's user profile page after she successfully log in and you cannot do anything. I got that problem too and it took me a while to figure out how to fix it. Login to Moodle using an administrator a...
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Fix mysql ERROR 1698 (28000): Access denied for user 'root'@'localhost'
After a fresh install of MariaDB on a Ubuntu 16.04 machine, I got this error when trying to login to mysql: $ mysql u root -p ERROR 1698 (28000): Access denied for user 'root'@'localhost' Then I realized that I can login without password if I use sudo (of...
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How to install and start E-commerce service in Open edX navetive installations (Ubuntu 16.04)
Assumptions: You are installing this on an AWS instance of Ubuntu 12.04, 64-bit You have at least 30GB of space assigned to the root drive These instructions are as current as of the Fiscus.3 platform release 1. Update and install system dependencies sudo a...
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The proper way to install Ansible on Ubuntu 17.04
Because the ansible version comes with Ubuntu 17.04 is quite all (1.6.2), it may cause you troubles like missing module directory... After a while, I figured that PIP is the best way to install Ansible on Ubuntu 17.04. 1. Install the needed libs: $ sudo apt...
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