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…
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…
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…
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…
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….
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…
Historically, the most popular USB to Serial Adapter is the one that is based on either FTDI FT232 chip or Profilic PL2303 chip. Due to its popularity, as usual the market is then flooded with cheaper counterfeit chips from China….
It is common that swap partition was created and reserved during installation of on-premise Linux server. Even if it was not, you can always add swap partition easily as long as you still have spare disk space. That is not…
There are alternative ways to do development and load your application into the ESP8266 module. For beginner this could cause some confusions so it is must be stated that what is described here is only one of those alternatives. In…
Early this year I read about ESP8266, a WiFi SoC (System on a Chip) that can connect to 802.11b/g/n networks on the 2.4GHz band. It can be addressed with SPI or a serial connection, and has an AT command set…