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Background I recently had opportunity to support team who has been battling with Intermittent (scary i know :)) issues with TCP connectivity in Production. Simplified deployment Architecture is as below, High Level Architecture Technology Stack used is Microsoft .NET Framework 4.8 using ODP.NET for Oracle Connectivity (Oracle Server is 8 CPU box). Each of Web Servers in cluster have IIS hosted on it with multiple Applications (Application domains) serving HTTP(s) based traffic. These applications connect to Oracle Database. ...

Background I recently came across bounty by Balaji Srinivasan to send Direct Message to all twitter followers. Currently, i do not intend to participate in bounty and this is mere exercise. This is an attempt to write CLI tool in Golang in response to it. For detailed requirements, refer here Approach In Brief, CLI should, accept arguments like Twitter API Key,Auth token, DM Message Download all followers (with profile details) Rank them by Criteria (e.g. Location) Send each follower a DM with provided message (upto daily DM Limit) be easy to use and maintain Notes, ...

At my current workplace, All Applications are expected to adhere to PCI DSS standards meant for Data protection, Access Regulation and so on. Dedicated SOC Team,consisting of Security analyst who are continously on the prawl to identify breach, conduct periodic auditing of Applications, hardening of Servers. While all our .NET applications adhere to below guidelines, ASP.NET Security Overview Secure Coding Guidelines Security Guidelines by OWASP We also use tools like Snyk to perform code vulnerability analysis as part of Jenkins driven CI/CD pipeline. In spite of above, we do come across vulnerabilities identified by SOC Team which we needs to be addressed quickly. SOC team uses tools such as Burp Suite. ...

Over the last many years, de-facto language of the Web (specifically front-end) has been Javascript (and variants like Typescript, ECMAScript versions and so on). The Web development has been revolving around HTML+CSS+Javascript trio. It all started with support for Javascript in browsers, followed by addition of XMLHTTP API, Rich DOM Manipulation Support in Javascript. To induce order and apply patterns to Javascript’s usage in browsers, numerous frameworks and libraries were introduced like React and Vue among others. To begin with, The target used to be browsers on Large Devices like Desktop & Laptops. However, soon all sorts of devices were targetted with advent of Responsive and Progressive CSS+Javascript libraries eg. Bootstrap. Offline Support soon came in ref: Electron and Progressive Web Applications. ...

Background The source code of tracfee.com is hosted on Github Private. At a High level, Tracfee’s Architecture involves, Single Page Application using VueJS, deployed on Netlify API in Go, deployed on Oracle Cloud So far, API testing has been automated and we were looking at ways to automate deployment of both UI and API. Steps required to deploy API are less since we are using Docker to run it on VM. However, in case of Netlify, it is required to build and then upload the output folder on Netlify. ...