Systems that solve operational problems at scale.
Notes from Vignesh A S on Java, Kafka, distributed systems and AI-assisted tooling.
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From Virtual Machine to container to Serverless… VMware
Today’s developers and organizations are migrating large, monolithic legacy applications to microservice-based architectures to improve scalability and developer velocity. However, these benefits come at a cost, namely integration complexity. Additionally,…
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Microsoft .Net application in AWS Lambdas
Amazon AWS Lambda functions are becoming more popular. Where I don’t need to setup and manage servers to Dev and deploy my code. Currently Lambda supports node Java python and…
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Install EC2 Amazon Linux OS locally on VMware virtual machine.
Amazon Linux a free, very up-to-date OS, complete with all AWS tools, Amazon has made it pretty compelling to use their OS over any others. But it was not open source.…
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How to Encrypt the unencrypted EBS volume
[amazon_link asins=’8126565780,B007X6SMD6,B01FGT7J3K,B007Q4XQEU,B01LX8J2S9,B01MG5IPDO,B01FSZHYSW’ template=’ProductCarousel’ store=’asvignesh-21′ marketplace=’IN’ link_id=’c40293c0-c0bb-11e7-9231-5decb318ea19′] First stop the AWS EC2 Instance Create the EBS snapshot of the volume which you want to encrypt Copy the EBS snapshot which…
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Volumes are not eligible for Shadow Copy
Shadow Copies are possible for almost all volumes and not “all volumes”. There are few cases which the shadow copy may not work Enough Space The shadow storage volume must contain…
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Setup a V-Host on WAMP
Setup a Virtual Host on WAMP Most developers do work locally, Like them i work locally, test then deploy to staging / production. Sometime i used to work on WAMP stack…
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vSphere Web Client Error #1009, Click yes to reload
Recently My client have been having some issues with the vSphere web client plugins, they were getting #1009 error often Initially i googled and try to find the solution and…
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PowerShell Binary Module development
You can write the power shell modules through scripts (Script Modules) or through c# code (Binary modules) Script modules can have any valid PS code and save as .psm1 Binary…
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Resizing your VMFS
I’ve been developing an automation scripts to provision and expand VMFS Datastore. Expand not Extent… I increased the storage volume size and need to increase the size of VMFS datastore without affording the…
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How to check whether the particular port is in use : Java
When i was working on a WIX, i encountered some issue in installing the application (REST based webservice), my service is not started and later identified that the port number…
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Embed your GIST code in your WordPress blog post without using any plugins
When I write blogs which explains something using code snippet, i used to add the code directly and blockquote it later i find some plugins which will render the code in…
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Register dll in GAC without using gacutil
Usually we register the dll to the Global Assembly Cache a.k.a GAC using the Visual Studio developer console Gacutil or earlier to Windows server 2012 you can simply drag and drop to…
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Backup Disk : Vss Hardware Provider using Disk Shadow
VSS hardware provider can be initiate and test using DiskShadow Commands Open the Powershell and Enter Diskshadow PS C:\Users\Administrator> diskshadow Microsoft DiskShadow version 1.0 Copyright (C) 2013 Microsoft Corporation On…
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Git: Bare Init, Initial push and clone repository
There are lots of document and posts about GIT repos and commits, i wrote this like a note for future reference for me and my colleagues Firstly need to setup…
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Use Local Gateway To Access Internet While Still Connected with VPN
If you connected with VPN (Virtual private network), by default your internet will go through the remote gateway (ie. VPN gateway ), Here i explain how to access internet through…
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Enable root in ubuntu server 14.04, 14.10
First login to the ubuntu server via terminal or console To gain super user access, enter the following command and re-type the user password. sudo su – Type the following…
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How to Disable User Menu in Chrome
There is an updated rolled out for chrome today which adds adds a new menu in the top-right of the chrome browser that allows the user to manages the user…
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Sample Java Code – Http Get RESTFul Client
HTTP GET The HTTP GET method is used to retrieve (or read) a representation of a web resource. In the non-error ( aka Happy path ) path, GET returns a…
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RESTful web service
Representational State Transfer (REST) has gained widespread acceptance across the Web as a simpler alternative to other Web services ( SOAP and WSDL ). REST is an architecture style or…
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Backup types – Inconsistent, App consistent, crash consistent
Inconsistent Backup The oldest type of backup probably not consistent. The process of taking the backup was so simple, backup application starts at the beginning of a file structure and…