upgrade from acme v1 to v2
Recently there was a change from letsencrypt that ACME client v1 is deprecated and updated the users whoever using the v1 to upgrade to v2 version. They have sent emails to the users who...
Category: Linux
how to remove corrupted disk from LVM?
There are certain cases either physical /logical disk gets failed due to some reasons. Recently in my case, I was using 3 disks to create a logical volume in my Linux server for storing...
How to change Kubernetes master and worker node IP address
In this tutorial, we explain what steps need to be taken during changing the IP address of the Kubernetes master and worker node. This kind of situation comes up when you are reorganizing your...
WARNING server login failed: FATAL no pg_hba.conf entry for host “”, user “postgres”, database “postgres”, SSL off
I have an application that uses Postgres as the database to store application-related data. During my initial setup, I have found the above error in the application while connecting the database. From the above...
how to get S3 buckets sizes using a cloudwatch
Get s3 buckets size and cost S3( simple storage Service) is object storage provided by AWS. S3 even helps to host a static website. S3 support to store any kind of data. It’s highly...
Setup nfs server on Amazon Ec2
The Network File System (NFS) is a client/server application that lets a computer user view and optionally store and update files on a remote computer as though they were on the user’s own computer....
Search and delete files older than “N” days
Lets see how we can search specific files or directory which was created “N” days before and delete. For example find files older than 60 days, Replace the ls with -delete to remove...
explanation of bind address-from a security point of view
hi all, this document deals with the explanation of bind address-security. You might have heard about bind-address when configuring certain applications such as Redis, MongoDB, elasticsearch, etc wherein the configuration to choose or configure...
how to use the choice parameter variable in the Jenkins pipeline
Hi All, this document shows how to use the choice parameter variable in the Jenkins pipeline. Jenkins is a widely used CICD tool that supports a lot of integrations. There are certain use cases...
