High-performance mass web crawling on AWS
The 3rd-and-last experiment of course Web Information Processing and Application required us to create a recommendation engine, and “predict” the rating (1-5 stars) for 4M user-item pairs based on ...
Managing servers with OpenSSH Certificate Authority
Since the addition of the website server for an external corporation, I now have 5 Linux servers to manage on my own. I also have 4 terminal devices that I use to connect to those servers: two of m...
How to change email of your Nvidia account
I recently retired a few old email addresses, and am currently going in a row to change email for accounts associated with those emails. Everything else went smoothly, with my Nvidia account being ...
Make your GitHub Pages website faster with Cloudflare
This September I employed Cloudflare to optimize my website (https://ibugone.com) in various aspects. It turned out to be a brilliant move and Cloudflare has proved to be a great service to have.
Converting DFA to Regular Expression
This post originated from Lab 1 of course Compilers: Principles that I’m currently taking, in which we were required to write a flex program to parse a subset of the C language. The multiline comme...
Raspberry Pi 4 B Review and Benchmark - What’s improved over Pi 3 B+
Lately I’ve finally received my Raspberry Pi 4 (4 GB model), and I couldn’t resist the temptation to give it a try and see all the improvements that’s been reported for months.
My speech at Microsoft Summer Camp 2019
This is a translated version from the Chinese (original) script. The slideshow can be acquired here. For comments, please head to the Chinese version of this post.
Creating templated Systemd services
Last time I wrote an article about NAT traversal using FRP, which has been my personal solution for exposing SSH access of machines behind NAT to the internet for a long time.