Matthew Nguyen

This was a good experience on tracking down a DNS issue at IMC, when I had no practical network debugging experience. tldr try to get the network tuple to help diagnose general networking issues nslookup / dig will get the DNS record for you tcpdump can determine if network traffic is making it in / out of a server traceroute / mtr will determine at which hop packets are getting dropped The issue It was noticed that cronjobs on a particular host were failing with DNS errors, and was intermittently unable to send requests:...

Hi, it’s been awhile since I last wrote about something. I recently created a timer to track how long it’s been since Michael Reeves last uploaded, since the time of writing it’s been at least 9 months now. Of course, I love his content and it’s been a real inspiration for me. Here’s the original explanation for the process I went through in making this website link to the website...

This will give an insight into how I came to solve a problem I was having as of late. Click here to go to the website! The Problem Valorant came out and I was absolutely obsessed with it. It’s a 5v5 tactical shooter similar to Counter-Strike: Global Offensive (or CS:GO for short). Valorant, like CS:GO, has the capacity to throw grenades across the map to set up strategies and gain an advantage by blocking vision or damaging enemies....

This project was meant to be a sort of “refresher” or opportunity for students to assess their knowledge obtained from the prerequisite class, but I did not feel like I was prepared for this at all. I won’t be saying what exactly the prompt was for this project, but essentially it was to recreate the String class in C++. Seems easy enough, right? No, you were so wrong. After finishing this project, here’s what I learned:...

In this post, I’ll be giving a quick primer on Object Oriented Programming or OOP. This explanation will be using Python - each programming language has its own nuances and syntax for the various things explained in here. Base Definitions and Knowledge Objects -> essentially the same definition as a regular object, an entity that can be acted upon Classes -> these are the blueprints for objects – these are referred to when creating a new object...

Here, we’ll be covering the basics of HTML straight from scratch, for those who are just beginning to learn about it. Special shoutout to 2019 Curry TIP for prompting me to make this guide, hopefully ya’ll find this useful and informative. Getting Set Up Here’s what you’ll need to get started on using HTML: a text editor - I recommend using Brackets, but you can use any, even notepad would work....

Polymorphism is considered an important part of OOP (Object Oriented Programming), and understanding/using it/explaining it will definitely be useful in the future. Disclaimer: Honestly more than anything, this is for my own benefit so I am able to explain these concepts accurately and easily. Definition A quick Google search brings up this: the ability of an object to take up many forms Dynamic Polymorphism In a class hierarchy, many objects share a common method or trait, but have different behaviors associated with each subclasses’ method or trait....