Anything related to technology.
Sometimes, it gets essential to prompt the user to confirm if the user is okay with the operations of the playbook. For example, if a playbook is going to perform an action that would cause a service impact, I would probably want to inform the user about the consequences and let him choose to abort …
This post demonstrates how load balancers help achieve higher availability of the control plane nodes in a simple cluster environment. The post targets the beginner audience; with the concepts, procedure, and testing. The same concepts apply to setting up a high-available Kubernetes cluster. The post is divided into three parts; feel free to skip to …
What is high availability, and how to make your infrastructure resilient to failures? Read More »
In this post, we will see an automated approach to creating a guest VM with cloud-init using libvert/virt-install. In the Previous post described here, we have seen the manual procedure. Now, we will use a shell script wrapper to do the same for our convenience. For your convenience, the script is loaded with comments, so …
Create a Virtual Machine with cloud-init using libvert(Automated) Read More »
This post will demonstrate creating a high-performance guest VM with cloud-init using virt-install. The Qemu/libvert/KVM stack is currently the best bet to get the near-native performance from the virtual machines. When combined with cloud-init, the stack gets more empowered and highly convenient to set up virtual machines. This is especially helpful if you require creating …
Create Virtual Machines using virt-install(libvert) with cloud-init Read More »
This post will describe the steps to store your media files, like images and videos, organized by their creation date. This tool is beneficial for photography enthusiasts and professionals to keep track of their work. Prerequisite: bash ExifTool WSL(if on windows) Important notes: The steps provided here are tested by me on my …
Ansible ships with a massive collection of built-in modules; these modules are pretty good in doing their job, cover most of the scenarios, have good documentation, and have a very reliable community backing them. If you wish to see the list or count of the inbuilt modules ansible provides, you can run the ansible-doc -l …
In this post, the method to remote SSH into a Linux machine is covered. This is especially helpful when you do not wish to open any Port open in your ISP-provided Router configuration. Using this method, you can SSH into your home machine from any computer on the internet. You would not need any fancy …
How to set up Remote SSH to any machine behind the firewall Read More »
In one of my Linux node, I was not able to use curl command if executed by a particular user(“root”). Strange enough, it was working when executed using some other user. If you face similar issue try to follow the following strategy to debug the issue: When executed with non-root User: curl google.com -I HTTP/1.1 …
Curl not working when executed by a particular user Read More »
Guacamole is an open-source and client-less remote desktop solution. By client-less, it means that a user does not need to install any additional client software(like vncviewer, windows RDP) on the local machine to remote login into the remote machine. Instead, Guacamole uses HTML5 to remote login to the remote device on any browser. However, if …
Countless predators are sitting in the wild to spam or attack the network. So sometimes, before trusting a random IP address on the Internet, it’s a good idea to check its reputation. There are multiple methods to check the details and reputation of an IP address, but here we are covering only one via “www.abuseipdb.com.” …
How to check the IP address reputation programmatically Read More »
