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This article help you to find virtualization type of an Instance and AMI. I used awscli commands to demonstrate. The same details can be Continue reading “AWS – Find EC2 Instance virtualization type” › Each AWS instance comes with one primary private IP address as*igned to first network interface named eth0. This primary IP address will remains unchanged throughout the life-cycle of that instance. AWS also allows as*igning multiple secondary private IP address for same network interface. Re-allocating or Reas*igning secondary addresses can be done straight away either through console or CLI. Continue Ubuntu package manager has multiple tools to list the available package updates for installed deb packages. Look into all options and choose the one which you feel comfort. Among given options, first two option are my favourite. Because they populate list of available package updates with version details. Continue reading “Ubuntu – List available package updates” › The one who new to Ubuntu like me may face difficulty in understanding grub.cfg. But making Ubuntu to boot into older or previous kernel version is really simple. The configuration is same like Redht except small change in syntax. Continue reading “Boot previous kernel Ansible can report execution time for each task. And total time taken for playbook execution. It is more useful to estimate the time of completion as specially for long running jobs. Continue reading “Get execution time of each task – Ansible” › Have created a small bash script to monitor wordpress site status and report to the web admin in near real time. I really enjoyed the benefit of outcome of this script. What it does? Continue reading “monitor wordpress site through bash script” › Q: Our wordpress website hosted on Linux + Apache + MySQL. Here the issue is page not loading at all. Have did restart the apache server. Then it worked well for few seconds. Again the page stopped loading. All of my clients have seen server unreachable error. There was no