Error – mount unknown filesystem type ‘lvm2_member’ [Fix]
“Sometimes all bad things will happen at the same time” – I remembered this quote on a night when my...
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Single Photon Source – My First Hand Experience
Quantum computing is one of the most discussed technologies today and it deserves attention for its potential to revolutionize computational...Change PDF Metadata from Linux Command Line
PDF Metadata generally contains information about the PDF document – such as Title, Author, MIME type, creator, keyword, pdf version,...How to configure VM resizing and migration between hypervisors [OpenStack]
When VM resizing or cold migrating between hypervisors, it’s highly probable that you will come across an SSH error indicating...Openstack Live Migration error with Unacceptable CPU info: CPU doesn’t have compatibility
I hope you know that OpenStack, offers a valuable feature called “live migration” that allows to move virtual machines (VMs)...How to customize OpenStack Horizon Dashboard
Customize OpenStack Horizon Dashboard allows you to tailor the interface to your specific needs and preferences such as its appearance,...How to mitigate Clickjacking/UI redressing in WordPress
Mitigate Clickjacking or UI redressing in a WordPress website involves implementing security measures to prevent attackers from embedding your...How to mitigate load-scripts.php DoS attack in WordPress
If you are running WordPress on your website then you should follow this article to prevent a DoS attack in...[Openstack nova]: No valid host found for resize
On my OpenStack setup with 2-nodes, 1-controller+compute and 1-compute node, I got the error message “No valid host was found....[Kubernetes]: failed to pull image registry.k8s.io/kube-apiserver:v1.27.1
While installing Kubernetes and configuring Kubernetes on the Master node, encountered the error “failed to pull image registry.k8s.io/kube-apiserver:v1.27.1”. Below is...No space left on device: Couldn’t create the rewrite-map mutex: Configuration Failed [Apache]
Since my webserver (apache) wasn’t responding, I restarted the apache service. Most of the time restarting works, this time it...Refer plugin directory path in custom JavaScript file [WordPress]
When developing a WordPress plugin, it’s a good practice to refer relative file names while referring assets (Image, css etc.,)...[Dompdf] PHP Fatal error: Class DOMImplementation not found
After fixing undefined function mb_internal_encoding encountered an another error “Uncaught Error: Class DOMImplementation not found“. Below is the complete error:...[Dompdf]: Call to undefined function mb_internal_encoding()
Recently in one of my web development project, I tried to use Dompdf and encountered error “Call to undefined function...How to detect and analyse botnet malware running on Linux
Recently some of the virtual machines used for my developmental activities were attacked! The problem was that there was a...Install_requires must be a string or list of strings – Fix Qiskit Terra installation
Issue: I got this error – “error in qiskit-terra setup command: ‘install_requires’ must be a string or list of strings...Create beautiful Text effects in Divi
I have been using Divi for many years now and it’s a great tool for developing amazing websites quickly that...WhatsApp Calls from Unknown International Numbers? [Block it]
Lately, I have been receiving lot of WhatsApp calls from unknown international numbers. While most of them were missed calls,...How to shrink a qcow2 Windows VM image on Linux
Followed your article to create a Windows Image for OpenStack glance repository. After successfully booting of VM, found the size...