Serving your blog from full-page-cache CDN locations

Ask yourself, would you stick around if this page didn’t load almost immediately, but instead, there was a blank white page for a few seconds? Around half of the internet’s users leave if it takes longer than 2 seconds to load a web page. Two years ago, I used Cloudflare’s Page Rules, specifically the “Cache […]

50 Top ‘Internet of Things’ Security Solutions

A couple of months back, I decided to maintain a list of companies that offer IoT (internet of things) security tools and solutions which you can find below. Feel free to share your solutions, feedback, and tips for securing IoT devices. In the future, I will update this list continuously. A few key questions arose […]

Linux top: Here’s how to customize it

The top command – referred to below as Linux top – is a command on Unix and Unix-like systems such as Linux, which provides a dynamic real-time overview of a running system. It can display system summary information and a list of processes or threads currently managed by the Linux kernel. The types of system […]

Overclocking my old “Raspberry Pi 3 Model B”

The Raspberry Pi 4 boards now cost around $200, sometimes more! Some of us may opt to dust off our old Raspberry Pi 3’s instead of purchasing a new version 4. You may remember my original overclocking posts for Raspberry Pi and the Raspberry Pi 2. This Raspberry Pi 3 overclock post seeks to overclock […]

PHP-FPM tuning: Using ‘pm static’ for max performance

Let’s take a very quick look at how best to set up PHP-FPM for high throughput, low latency, and more stable CPU and memory use. By default, most setups have PHP-FPM’s PM (process manager) string set to dynamic and there’s also the common advice to use ondemand if you suffer from available memory issues. However, let’s […]

Congrats Charles! – Winner of this month’s Firewalla Blue Plus Device

Not long ago, I announced a giveaway contest for three (3) Firewalla Blue Plus Devices! The Firewalla Blue Plus is a network layer security device. It’s an all-in-one, simple, yet powerful firewall that connects to your home router. Today, it’s my pleasure to announce this month’s winner of the second of three Firewalla Blue Plus devices! […]

Raspberry Pi Performance: Add ZRAM and these Kernel Parameters

Previously, I published a Pinebook Pro review article on this blog. Similar to the Pinebook Pro, the Raspberry Pi and, more recently, the Raspberry Pi 4 are also ARM-based. With good results, I’ve applied some of the optimizations mentioned in that previous article to the Raspberry Pi 4. I wanted to share these tweaks and […]

How to forecast metrics with Checkmk

In case you are responsible for any kind of server, you probably are aware of bad surprises that sometimes crash your plans after work or for the weekend. Suddenly, a server goes down, and you have to react to an incident because other people and systems depend on it. In this tutorial, I want to […]

Why we built paperd.ink even after crowdfunding failed

Paperd.ink started as a hobby project from our rooms when we had just graduated our college. Both Rohit & I studied Electronics & Telecommunications engineering for our Bachelor’s. Rohit is the technical brain and creator of the product, whereas I am responsible for promotion, operations, user research, etc. This blog will briefly cover our journey […]