Nam Vo Website
I developed this website to
share my knowledge and satisfy my coding passion
LATEST BLOG
CORS and CSRF: How Attackers Exploit the Gaps
I used to think CORS was a security feature. It is, partially. But the more I understood it, the more I realized how narrow its protection actually is. This post walks through how CORS works under the hood, where it breaks down, what CSRF is, and how...
2026-04-04 18:08:15 +0700
· 5 mins read
Software Engineer
Software Engineer
Optimizing Bulk Create Operations in Rails
Recently, my team ran into performance issues while handling bulk CUD (Create, Update, Delete) operations in a Rails application.Active Record provides validations and callbacks, which are excellent tools for maintaining data consistency. Rails contr...
2026-01-03 19:48:24 +0700
· 4 mins read
Software Engineer
Software Engineer
Ruby on Rails
Ruby on Rails
Top blogs
Explore the most popular blog posts. View all
Common Mistakes When Using Sidekiq
Sidekiq is a popular background job processing library for Ruby that allows you to offload time-consuming tasks from your main application thread. While Sidekiq can significantly improve the performance and responsiveness of your application, it's es...
Ruby on Rails
Ruby on Rails
2024-08-27 21:25:30 +0700
· 3 mins read
How to Manage and Renew SSL Certificates Using Docker Compose
Securing your website with SSL certificates is essential to protect data transmitted between the server and client. Managing and renewing SSL certificates can be a cumbersome task, but Docker simplifies this process. In this blog post, we will demons...
Docker
Docker
Software Engineer
Software Engineer
2024-08-15 21:06:08 +0700
· 3 mins read
Rails 7.2+: How to show all model attributes in Rails Console
With the release of Rails 7.2, a new change was introduced to the way ActiveRecord models are inspected in the Rails console. Prior to this version, calling inspect on an ActiveRecord model instance would display all the model's attributes by default...
Ruby on Rails
Ruby on Rails
2025-04-22 11:12:40 +0700
· 2 mins read
How to get table index size in PostgreSQL
Indexes play a crucial role in enhancing the performance of database queries. They allow for faster data retrieval by creating a separate data structure pointing to the data stored in a table. However, indexes come with a cost in terms of disk space ...
Software Engineer
Software Engineer
2024-07-10 23:01:49 +0700
· 1 min read
Popular apps
Discover the ultimate collection of free tools, conveniently accessible in one place. View all
Image Tools
Transform your images effortlessly, all within your browser. No uploads, no tracking—just pure, private image editing.
Try it now!
Link Shortener
Now you can shorten your link with a custom path. Say goodbye to complex shortened link characters and enjoy the convenience.
All for free!
QR Code Generator
Simply input your link, and instantly create a QR Code that directly leads to your website, no redirects or tracking involved.
Custom sizes are supported for use in your design.
What is my IP Address?
Check your IP address and find your IP location including city, region, country and postal code
Check it now!
