_ Aljaž Vidmar
After a fresh install of HAOS (Home Assistant OS) I wanted to use it without attaching it to a physical ethernet connection. Therefore I had to setup connection to my local wifi network using the following commands.
Prepare three linux hosts We need three Linux nodes: HOST Specs For this tutorial i am using a RHEL linux distro (CentOS 7.9). Hostname IP RAM vCPUs srvrancher 192.168.202.10 4 GB 4 srvk8node01 192.168.202.11 4 GB 4 srvk8node01 192.168.202.12 4…
When working with databases in production is quite common that we start dealing with (too) large tables too late when there are zillions of rows and hundreds of GB of data. Therefore we got a little bit scared of “touching”…
Prepare DOcker Containers First we create two containers: one which for the replication Publisher and the other for replication Subscrber NOTE: we are using values suitable for testing purposes (eg. trust auth method and default password for postgres user) Logical…
While working with Linux, we find that access to some files or performing sensitive operations requires users to have elevated privileges. The sudo command temporarily elevates user privileges allowing a user to execute sensitive commands or access files without restrictions.…
This is a quick tutorial on how to use git. Git is a software for tracking changes in any set of files, usually used for coordinating work among programmers collaboratively developing source code during software development. Its goals include speed,…
MySQL is a well-known open-source relational database management system and one of the most popular web server solutions. It stores and structures data in a meaningful manner, ensuring easy accessibility.
Regular expressions come handy when trying to filter some output from a file with grep or similar Linux command.
Docker is a set of platform as a service (PaaS) products that use OS-level virtualization to deliver software in packages called containers. The service has both free and premium tiers. The software that hosts the containers is called Docker Engine.…
This is a short tutorial on how to install, configure and start your own Kubernetes cluster.
