Better Dev Link

I agree with the saying: “If you’re not embarrassed by your old code then you aren’t progressing as a programmer.”

I thought that load average 1.0 on my two core machine means that the CPU usage is at 50%. That’s not quite right. And also, why does it say 1.0?

From basic to advanced with Interview Questions and Notes.

Encrypting DNS would improve user privacy and security. In this post, we will look at two mechanisms for encrypting DNS, known as DNS over TLS (DoT) and DNS over HTTPS (DoH), and explain how they work.

SSH is how we connect to our server. This is a relatively brief description of the handshake that occurs to establish a secure channel between a client and a server.

I wanted to understand enough about the underlying physical storage to be able to grasp other concepts which can affect your database. This post is probably more aimed to people with similar interests

Column-store systems completely vertically partition a database into a collection of individual columns that are stored separately. They are used a lot in data warehouse like Redshift, ClickHouse

A completed guide about web caching, HTTP headers, meta tag, and tip to build cache-aware sites.

The purpose of DKIM is to authenticate that the content of any DKIM-signed email message is not modified during the transfer between sender’s or ISP (Internet Service Provider) and receiver’s mail servers.

How to stay safe online and prevent phishing with FIDO2, WebAuthn and security keys.