In many situations we would like to give users access to a particular command without exposing too much access due to security concerns. One particular example will be the docker command. After a docker daemon has been installed, one can invoke the command either as a root or as a Read more…
Introduction Docker has become one of the most popular tool in the recent years. This is because it allows developer to deploy their application to any machine with the same setup. Think of it like running a Java program on any machine with JVM installed. Due to the popularity, it Read more…
Due to the recent change of job, I had to set up all the DevOps infrastructure from scratch which includes Gitlab, Docker, Jenkins and various other tools. As I have been a software engineer most of the time for the last 5 years plus, DevOps is really something that I Read more…
It has been a while since I purchased my Raspberry Pi 4. There was not much success in my previous attempts in getting rancher to run. The reason is due to incompatibility between Raspbian and Rancher. With the release of Ubuntu 20.04 LTS last month, I decided to try to Read more…
The very first version of raspberry pi was introduced back in 2012. Since then, it has gone through 3 iterations of improvements. Over the years, it has grown much in popularity to be used as a cheap computing device for educational purpose. My very first raspberry pi was the version Read more…
Due to the ease of creating Virtual Machines on FreeNAS, many users will create a VM or two on their FreeNAS machine. In some rare occassions, users may see that their VMs getting stuck in the UEFI Shell like the screenshot below. There is no need to panic, just follow Read more…
It has taken me a long time to figure out how to set up the Live TV on Kodi due to the lack of instructions online (Most of them only teach you how to install the software). And today I have finally managed to set up my kodi for Live Read more…
Recently, I have started to read the book “The Linux Programming Interface”. In chapter 4 of the book, the reader is given the exercise to create the tee command. For those of you who is not familiar what a tee command does, it is a simple command that reads the Read more…
Recently, a colleague was showing me some output from a program that is executed in linux environment. So he asked me why he is not able to remove these output from the console even though he has used the linux redirect for the program output on the terminal. The command Read more…