January 22, 2018 asvignesh 1Comment

Recently, An Indiana hospital paid a ransom of $55,000 to get rid of ransomware that had infected its systems and was hindering operations. when attackers breached the network of Hancock Health, a regional hospital in the city of Greenfield, Indiana. Hancock Health CEO Steve Long said the hackers are believed to be in eastern Europe and may have used a type of ransomware called SamSam, SamSam encrypted files and renamed them with the phrase “I’m sorry”, according to a local newspaper who broke the news. The hospital said that despite having backups it opted to pay the ransom demand of…

January 15, 2018 asvignesh

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, developers still often interact directly with the infrastructure, whether it be virtual machines (VMs) or containers via Kubernetes or another container orchestrator. Serverless is the next evolution of application and system design and deployment. Serverless applications are built upon functions—small code artifacts, which are compact and specific to a discrete task. Serverless doesnt means servers are no more required to run workloads, it simply means that developers no longer has…

January 9, 2018 asvignesh

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 C#. In the AWS reInvent AWS .Net team showed the demo of upcoming feature runtime executing a full ASP.NET core application with ASP.NET Razor pages. They showed the demo with AWS XRay . They have preannounced the support for .NET core 2.0 in AWS Lambda. Watch Deploying application on AWS with .NET core https://www.youtube.com/watch?v=IfF1E2RJ6Do

January 6, 2018 asvignesh

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. Now Amazon released Amazon Linux 2 an open source* Linux operating system. It provides a high performance, stable, and secure execution environment for cloud and enterprise applications. Amazon Linux 2 will offer the extended availability of software updates for the core operating system through 5 years of long-term support and provides access to the latest software packages through the Amazon Linux Extras repository. Earlier Amazon Linux was available only as AMI…

October 31, 2017 asvignesh

[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 you created in the previous step to same availability zone and check the Encryption check box Create the new EBS volume from the encrypted EBS snapshot Now the newly created EBS volume is Encrypted Detach the root volume and attach the new Encrypted volume with the same device name ( /dev/sda1 )

February 29, 2016 asvignesh

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 enough free space. At the very minimum you need at least 300 MB or so, for a single shadow copy, for multiple shadow copies, the space can increase more depending on the I/O usage. You can always run the command VSSADMIN LIST SHADOWSTORAGE to see how much space is used for the existing shadow copies. Only Fixed Drives Only fixed drives are supported. You cannot enable Shadow Copy on removable,…

February 9, 2016 asvignesh

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 too… in this case creating virtual hosts is better option V-Hosts makes URL cleaner, no need of much modifications in case of CMS let’s setup a virtual host in WAMP. Open your Apache configuration Default Location : C:\wamp\bin\apache\apache2.4.9\conf Search for “Virtual hosts” Uncomment the Include line if it is commented Virtual Host Config File Include Now update the Virtual host config file Sample vHost config <VirtualHost *:80>…

September 8, 2015 asvignesh 2Comment

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 root cause, many blogs are suggesting disable the installed plugins and try again. Later i read somewhere ( forget the link) , clearing cache would help This issue is because of the cached objects and it happened when you are navigating through the inventory in the vSphere 6.0, usually this error message pops up, you have to refresh your full web page Error 1009, click yes…

August 27, 2015 asvignesh

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 modules can be any assembly that contain cmdlet classes (.dll) the assembly would be imported to powershell and use the commands In this post am writing about the how to create a Binary PowerShell module Open Visual Studio 2012 New Project -> Class Library In order to get the powershell runspace inside the programming language and to create the powershell commands we must add reference of “System.management.automation” dll The DLL…