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Six Easy Steps to Create a Self-Signed Certificate on Ubuntu Server

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A self-signed certificate is an SSL certificate that is signed by the person or organization creating it, rather than a trusted Certificate Authority (CA). You can use a self-signed certificate for testing purposes, or to provide encryption within internal networks. If you are looking into renewing a self-signed SSL, please take a look at How to Renew Self-Signed SSL … [Read more...] about Six Easy Steps to Create a Self-Signed Certificate on Ubuntu Server

What Elon Musk Needs Doing to Make X.com(Twitter) Great Again?

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As of mid-2024, X (formerly Twitter) has undergone significant transformation under Elon Musk's ownership. The platform has rebranded to X, aiming to become an "everything app" similar to WeChat. It has introduced longer posts, video content enhancements, and is working on integrating payment services. Yet, many users still think that Elon Musk could improve it even further by … [Read more...] about What Elon Musk Needs Doing to Make X.com(Twitter) Great Again?

Top 10 Cloud Based Threats

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Cloud-based threats refer to security risks and vulnerabilities that are specifically associated with cloud computing environments. These threats target cloud services, platforms, and infrastructure, as well as the data and applications hosted in the cloud. As organizations increasingly adopt cloud technologies for storage, computing, and other services, understanding these … [Read more...] about Top 10 Cloud Based Threats

3 Steps to Setup EC2 EBS Volume Disk Space Monitoring using Cloudwatch

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The default monitoring of Amazon EC2 does not track the EBS disk space. To monitor disk space in EC2 instance, you need can either manually installed Cloudwatch Agent or can use SSM to install the agent. After installing you Step 1. Instal cloudwatch agent sudo yum -y install amazon-cloudwatch-agent Step 2. create a config.json file  in the following … [Read more...] about 3 Steps to Setup EC2 EBS Volume Disk Space Monitoring using Cloudwatch

How to Create a Helm Chart in Windows for Minikube

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Helm package manager is used to deploy applications in the Kubernetes cluster. By packaging your app using helm allows to deploy it with one command instead of using “kubectl create/apply” command. Another benefit of using helm is that you can easily upgrade and rollback your apps when required because helm uses version control.   Follow the three simple steps creating … [Read more...] about How to Create a Helm Chart in Windows for Minikube

5 Steps to Auto-Create Helm  Charts and upload to S3 Using Jenkins

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After packaging the helm charts, you need to store it in a repository so that it can be easily deployed using helm in the Kubernetes or Minikube. This post aims to show you how to set up the AWS S3 bucket as a Helm chart repository. Using the steps below you will be able to setup Helm S3 repo for both Minikube and KOPs created cluster hosted in AWS.  Scenario:  we will create … [Read more...] about 5 Steps to Auto-Create Helm  Charts and upload to S3 Using Jenkins

3 Steps to Install Kubectl, Helm 3 and S3 Plugin in Ubuntu to Store Charts in S3 Bucket

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This post aims to show you how to install Kubectl, Helm 3 and S3 plugin so that you can easily store the chart in a S3 bucket form your Ubuntu machine. Though I always use an automated approach to create and store the helm chart, I had to create a helm chart in Ubuntu in order to identify and Helm S3 plugin compatibility issue. 1. Install kubectl To install kubectl in … [Read more...] about 3 Steps to Install Kubectl, Helm 3 and S3 Plugin in Ubuntu to Store Charts in S3 Bucket

How to Run MySQL Database Anonymize Script from Linux Bash Shell

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How to run mysql annoymise scripot from bash shell. To anonymize the production database for using in the test environment,  you can create a simple script that can run from the Linux Bash shell with a single command. At first download a sample database: # wget https://github.com/datacharmer/test_db/archive/master.zip Next, unzip the file #  unzip master.zip … [Read more...] about How to Run MySQL Database Anonymize Script from Linux Bash Shell

How to Mount Amazon EFS in EC2-CentOS Instance

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With Amazon EFS(elastic file system)mounted in the EC2, you can signifincalty reudce cost of storge becaues you pay only for the storgrage used by your applications/data. EFS supports NFS In the AWS console, search for EFS and then create a volume. When you attahce a security group in the EFS, make sure it allows traffc on port 22 from the EC2 instance. Also, take note of the … [Read more...] about How to Mount Amazon EFS in EC2-CentOS Instance

How to Schedule AWS EC2 Start and stop time using Lambda and Cloudwatch

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To save your AWS cloud  operational cost, you can schedule EC2 instanes' start and stop time using Lambda function.  When you define a lamda function, you need to setup a trigger, which specifies the event that can invoke the lambda fucntions. In this post, we will use the a specific UTC time as a trigger .  For example, you want to start EC2 instances at  06:30 UTC and want to … [Read more...] about How to Schedule AWS EC2 Start and stop time using Lambda and Cloudwatch

How to Setup AWS CloudFront for Externally Registered Domain Name

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If you do not want to transfer your domain to Amazon DNS(Route 53) and want to use AWS CloudFront to deliver your content, you can use the instructions below to set up your content delivery network. Scenario 1: you are using an external DNS for CloudFront and do not want to create a hosted zone in  Amazon route 53. For example, your domain is registered with Namecheap and you … [Read more...] about How to Setup AWS CloudFront for Externally Registered Domain Name

How to Build High Availability Web Server with GlusterFS on Debian

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Scenario- this post aims to help you build a high availability cluster for websites using GlusterFS on Debian server. In this installation there will two servers-forming a cluster for web contents- that will replicate each other and the third one will be a client server. If you want to add anything in the cluster you have to add it in the client machine, which will be … [Read more...] about How to Build High Availability Web Server with GlusterFS on Debian

9 Advantages and Disadvantages of Cloud Computing for Business

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Deciding to move on to a cloud means moving your data into somebody’s computers. To develop your computing facilities without investing in hardware and infrastructure is what cloud computing all about. In an organization, you may be the decision maker thanking about whether to put your data in a third party cloud or in your own cloud. You can have a look at the following … [Read more...] about 9 Advantages and Disadvantages of Cloud Computing for Business

How to Extend Linux LVM by Adding a New Hard Disk

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You may need to add new disk to your Linux LVM for various reasons such as for adding capacity for your existing applications or new applications. This post aims to show you how you can add a new disk to your existing LVM as well as to a new LVM. The difference between adding a new disk to a new LVM and to an existing LVM is that in the latter case you do not have to create a … [Read more...] about How to Extend Linux LVM by Adding a New Hard Disk

Tips for Foreign Travel Risk Assessment and Management

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You may be subject to intelligence espionage while you travel in foreign countries. There can be a number of reasons whey you can be a target. You can be government officials or may be a business person. If the intelligence agency in the foreign country thinks you possess valuable information, you can be a victim. This post helps you identify the clues that may suggest that … [Read more...] about Tips for Foreign Travel Risk Assessment and Management