Upgrading My Old Version of WordPress Site
This blog was first built in 2015 using WordPress Version 4.3.1 and runs on Ubuntu 14.04 LTS VPS at Atlantic.Net. The server specification was the lowest available: 1vCPU, 256MB RAM, 10GB SSD, and cost 1.0 USD per month. Overtime the…
Roll Your Own Metatrader VPS
If you are a serious forex trader then sooner or later you would give serious consideration to running your trading platform on a Virtual Private Server (VPS), which is essentially a computer hosted in a service provider’s data center. This…
IBM 3270 Screen Scraping And Automation
In the late 1980s, when IBM PC had proliferated while I was still supporting IBM mainframe, I wrote a PC tool that sent commands to the mainframe and received responses back via the PC 3270 terminal emulator. This tool helped to…
Ubuntu Cloud Desktop with X2Go
This guide is using X2Go as an alternative to VNC (or noVNC) for accessing remote Ubuntu Desktop as described in the previous article. Similar to VNC, X2Go is an open-source remote desktop software that enables access to a Linux graphical…
Ubuntu Cloud Desktop: Adding GUI to Your Cloud Server Instance
When you are going to install Ubuntu on a local machine, there are always two versions to choose: desktop or server. Whereas if you want to deploy Ubuntu on the cloud, most cloud service providers only provide server version. This makes…
Setting up Single Sign-On (SSO) with IBM Cloud App ID, simpleSAMLphp and LDAP
For an organization who plans to deploy public cloud application to their internal users, one in the top list that needs to be considered carefully is how to authenticate the users. Most of the organization have an existing intranet, behind…
Build Yourself – Hakko T12 Compatible Soldering Iron Station
One of the fundamental skill needed as electronics enthusiast is that of soldering. For this purpose, you need a common soldering iron that typically has a power rating of 20-30 watts or so, which is fine for most work. But…
Email Forwarding for Creating FREE Email Accounts with Your Domain Name
I already own an internet domain name that I use for my website. Later on, I have a need to create several email accounts with the same domain address. The common solution would be to subscribe to an email hosting…
Look Ma! My $5 Pi Zero Thinks It is a Mainframe.
OK, it is not the first. But I couldn’t resist to have fun with it anyway. It is driven by personal nostalgia and fascinated by how computer has achieved such impressive price performance improvement over time that I experience myself….
Raspberry Pi Serial Console
Often you may need to run Raspberry Pi headless, that is without monitor and keyboard+mouse. To access this Raspberry Pi then you use SSH or similar remote access utility from your PC. The method requires that there is network connection…