Category Archives: Technology

Using FirewallD as a Linux Router

Posted on January 11, 2020 by Erik Calco

There are already blogs out there on how to use FirewallD as a router. In general, you enable masquerade. However, I could not find any that mentioned how to do it if you have public static IPs. Prior to using … Continue reading →

Posted in Networking, Technology, Technology Services | Tagged , , , , , , | Leave a comment

Creating a new Angular Site on Google Firebase

Posted on January 10, 2020 by Erik Calco

Angular is a framework for creating front-ends for websites. Technically, the site is static from a web hosting perspective, meaning that in and of itself it does not have a database, but rather only serves static files from the web … Continue reading →

Posted in Angular, Development, Technology, Web | Tagged , , , , | Leave a comment

Using JSONP in Angular 8

Posted on September 8, 2019 by Erik Calco

JSONP is one way to get around CORS when getting data from a REST service. It does require a callback feature on the part of the service, which isn’t readily clear in some of the blogs and samples online for … Continue reading →

Posted in Angular, Development, Technology, Web | Tagged , , , | Leave a comment

Testing Galera in Kubernetes

Posted on March 18, 2018 by Erik Calco

I deployed a 3 node Galera cluster in Kubernetes. Galera clusters MariaDB or MySQL, allowing you to read and write to all nodes while always being consistent (ACID) at all times. Kubernetes is a deployment environment for container applications.  Here … Continue reading →

Posted in Data, Technology | Tagged , , , , , , | Leave a comment

Added Charting to Automated Trading System

Posted on January 18, 2017 by Erik Calco

This is a continuation of Developing an Automated Trading System.  Many of us use very robust charting software, including the popular thinkorswim platform, that does more than I plan to create in my system.  The requirement I ran into that … Continue reading →

Posted in Finance, Investing, Technology, Trading, Web | Tagged , , , , | Leave a comment

Created Backtesting of Signals and Algos

Posted on November 30, 2016 by Erik Calco

This is a continuation of Developing an Automated Trading System.  Began algorithms with simple strategies.  This tests a range of inputs for a strategy. For example, you can test a range of trailing stops from 1 to 15% with 0.5% … Continue reading →

Posted in Business, Finance, Investing, Technology, Trading, Web | Leave a comment

Developing an Automated Trading System

Posted on October 7, 2016 by Erik Calco

It has been my dream since I was a kid and I saw the Matthew Broderick movie War Games in a theater in 1983 to build an automated trading system using AI.   This year I have begun to live that … Continue reading →

Posted in Business, Finance, Investing, Technology, Trading, Web | Tagged , , , , , , | Leave a comment

Internet Relay Chat (IRC) and the Berlin Wall Falling

Posted on August 19, 2016 by Erik Calco

This is the story of using the IRC when it first came out, long before most people heard of the Internet. Connecting Through College In the late 80s, when I was in college, I created an account on the school’s … Continue reading →

Posted in Technology | Tagged , , , | Leave a comment

How can Javascript access hardware on Android?

Posted on June 20, 2015 by Erik S

While the Apache Cordova project is providing a cross-platform and plug-in solution to deploying web applications as native mobile apps on Android, iPhones and Windows while giving you access to the hardware such as the camera, GPS and storage via … Continue reading →

Posted in Android, Mobile | Tagged , , , , | Leave a comment

Android Gaming Adventure – Part II: Hardware Primer

Posted on December 1, 2013 by Erik S

As I mentioned in part I, the ASUS MeMo lacked the required hardware to do low latency high definition gaming on a TV, a requirement of any gaming console.  So, this beckons the question, what is the best tablet or … Continue reading →

Posted in Fun, Gaming, Technology | Tagged , , | Leave a comment