Jump to content

Welcome to CodeNameJessica

✨ Welcome to CodeNameJessica! ✨

💻 Where tech meets community.

Hello, Guest! 👋
You're just a few clicks away from joining an exclusive space for tech enthusiasts, problem-solvers, and lifelong learners like you.

🔐 Why Join?
By becoming a member of CodeNameJessica, you’ll get access to:
✅ In-depth discussions on Linux, Security, Server Administration, Programming, and more
✅ Exclusive resources, tools, and scripts for IT professionals
✅ A supportive community of like-minded individuals to share ideas, solve problems, and learn together
✅ Project showcases, guides, and tutorials from our members
✅ Personalized profiles and direct messaging to collaborate with other techies

🌐 Sign Up Now and Unlock Full Access!
As a guest, you're seeing just a glimpse of what we offer. Don't miss out on the complete experience! Create a free account today and start exploring everything CodeNameJessica has to offer.

CodeName Blogs

Featured Entries

Book Recommendations

Why Every SysAdmin Should Understand ISO/IEC 27001:2022

In today’s digital landscape, the role of a System Administrator (SysAdmin) extends far beyond server uptime and software updates. With cyber threats evolving daily, understanding key information security standards like ISO/IEC 27001:2022 is no longer optional, it’s essential. This international standard provides a robust framework for establishing, implementing, maintaining, and continuously improving an Information Security Management System (ISMS). For SysAdmins, mastering ISO/IEC 27001 isn’t
Book Recommendations

📚 Recommended Cloud Computing Books to Read for Jan. 31, 2025

Cloud Computing and Security Author(s): Xingming Sun, Alex Liu, Han-Chieh Chao, Elisa Bertino Subject: cloud_computing Title: Unraveling the Intricacies of Cloud Computing a Review of 'Cloud Computing and Security' by Xingming Sun, Alex Liu, Han-Chieh Chao, Elisa Bertino A Definitive Guide to the Cloud No phenomenon has revolutionized the world of Information Technology in the 21st century quite like cloud computing. It's all around us, powering our personal devices, organizational infrastructu
Book Recommendations

📚 Recommended Linux Books to Read for Jan. 31, 2025

Linux in a Nutshell Author(s): Jessica Perry Hekman, Ellen Siever, Aaron Weber, Stephen Figgins, Robert Love, Arnold Robbins, Stephen Spainhour Linux in a Nutshell: An In-Depth Review "Linux in a Nutshell", is a prodigious technical reference book penned by an impressive team of authors – Jessica Perry Hekman, Ellen Siever, Aaron Weber, Stephen Figgins, Arnold Robbins, Stephen Spainhour and Robert Love. It provides a comprehensive and utterly engaging tour of the Linux operating system for begin
Book Recommendations

📚 Recommended Servers Books to Read for Jan. 31, 2025

Web Server Programming Author(s): Neil Gray Subject: servers 'Web Server Programming' Explored: An Enlightening Dive into Digital Engineering As someone deeply entrenched in the world of literature, there are books that unravel their mysteries instantly and others that unfold their knowledge meticulously. Falling gleefully into the latter category is Web Server Programming by Neil Gray. In this technologically intensive era, Gray masterfully deciphers the art of web server programming, venturing
Book Recommendations

📚 Recommended Programming Books to Read for Jan. 31, 2025

Reconfigurable Processor Array a Bit Sliced Parallel Computer (USA) Author(s): A. Rushton Subject: programming The Breakthrough of Parallel Computing: A Review of A. Rushton's 'Reconfigurable Processor Array a Bit Sliced Parallel Computer (USA)' In the ever-evolving world of technology, keeping up with the innovation and concepts that define the landscape can be a challenge. Yet, in his book, 'Reconfigurable Processor Array - A Bit Sliced Parallel Computer (USA)', A. Rushton provides a solid f

CSS Animations That Leverage the Parent-Child Relationship

by: Preethi Fri, 24 Oct 2025 14:18:03 +0000 Modern CSS has great ways to position and move a group of elements relative to each other, such as anchor positioning. That said, there are instances where it may be better to take up the old ways for a little animation, saving time and effort. We’ve always been able to affect an element’s structure, like resizing and rotating it. And when we change an element’s intrinsic sizing, its children are affected, too. This is something we can use to our

LHB Linux Digest #25.32: New Linux Networking Course, iotop, Chargebee Alternative and More

by: Abhishek Prakash Fri, 24 Oct 2025 18:11:02 +0530 I am happy to announce the release of our 14th course, Linux Networking at Scale. Okay, this is still a work in progress but I could not wait to reveal it to you 😀 It's a 4-module micro-course that takes you into the world of policy routing, VRFs, nftables, VXLAN, WireGuard, and real-world traffic control, with practical labs in each module. From sysadmins to DevOps to homelab enthusiasts, there is something for everyone in this course. Two

Linux Networking at Scale

by: Umair Khurshid Fri, 24 Oct 2025 16:57:28 +0530 🚀 Why this course? Modern infrastructure demands more than basic networking commands. When systems span across containers, data centers, and cloud edges, you need to scale, isolate, and secure your network intelligently; all using the native power of Linux. This micro-course takes you beyond the basics and into the world of policy routing, VRFs, nftables, VXLAN, WireGuard, and real-world traffic control, with practical labs at every step. 🧑‍🎓

Monitoring I/O Usage and Network Traffic in Linux With iotop & ntopng

by: LHB Community Fri, 24 Oct 2025 11:21:17 +0530 You've already seen how to monitor CPU and memory usage with top and htop. Now, let's take a look at two other tools you can use for monitoring your system: iotop and ntopng. These tools monitor disk I/O (Input/Output) and network traffic, respectively. This tutorial will show you how to install, configure, and use both tools. What are iotop and ntopng? iotop: Similar in appearance to top and htop, iotop is a real-time disk I/O monitoring utili

414: Apollo (and the Almighty Cache)

by: Chris Coyier Thu, 23 Oct 2025 16:15:59 +0000 Rachel and Chris jump on the show to talk about a bit of client-side technology we use: Apollo. We use it because we have a GraphQL API and Apollo helps us write queries and mutations that go through that API. It slots in quite nicely with our React front-end, providing hooks we use to do the data work we need to do when we need to do it. Plus we get typed data all the way through. Chris gets to learn that the Apollo Cache isn’t some bonus fe
  • Blogger

FOSS Weekly #25.43: NebiOS Linux, GNOME Enhancements, LMDE 7, COSMIC Beta Review and More Linux Stuff

by: Abhishek Prakash Thu, 23 Oct 2025 04:29:08 GMT Linux Mint Debian Edition (LMDE) version 7 is available now. For people who like Debian more than Ubuntu and Linux Mint's Cinnamon more than anything, this is the perfect choice. LMDE 7 “Gigi” Released: Linux Mint’s Debian-Based Alternative Gets Major UpgradeA stable Debian base meets a polished Linux Mint desktop experience.It's FOSS NewsSourav RudraSometimes I wonder if LMDE should be the default choice for Linux Mint. Am I the only one
  • Blogger

An Introduction to JavaScript Expressions

by: Mat Marquis Wed, 22 Oct 2025 19:08:23 +0000 Editor’s note: Mat Marquis and Andy Bell have released JavaScript for Everyone, an online course offered exclusively at Piccalilli. This post is an excerpt from the course taken specifically from a chapter all about JavaScript expressions. We’re publishing it here because we believe in this material and want to encourage folks like yourself to sign up for the course. So, please enjoy this break from our regular broadcasting to get a small taste of
  • Blogger

Arduino Alternative Microcontroller Boards for Your DIY Projects in the Post-Qualcomm Era

by: Pulkit Chandak Wed, 22 Oct 2025 07:13:10 GMT Arduino has been the cornerstone of embedded electronics projects for a while now. Be it DIY remote-controlled vehicles, binary clocks, power laces, or as is relevant to the month of publishing, flamethrowing Jack-O'-Lanterns! The versatility and affordability of the board has been uniquely unparalleled. But now that Qualcomm has acquired Arduino projecting more AI-forward features with more powerful hardware, there might be some changes aro
  • Blogger

PenTesting 101: Using TheHarvester for OSINT and Reconnaissance

by: Hangga Aji Sayekti Wed, 22 Oct 2025 11:49:45 +0530 Ever wonder how security pros find those hidden entry points before the real testing even begins? It all starts with what we call reconnaissance—the art of gathering intelligence. Think of it like casing a building before a security audit; you need to know the doors, windows, and air vents first. In this digital age, one of the go-to tools for this initial legwork is TheHarvester. At its heart, TheHarvester is a Python script that doesn't
  • Blogger

Google Chrome & Iframe `allow` Permissions Problems

by: Chris Coyier Mon, 20 Oct 2025 18:06:24 +0000 If you’re a CodePen user, this shouldn’t affect you aside from potentially seeing some console noise while we work this out. Carry on! At CodePen we have Embedded Pens which are shown in an <iframe>. These contain user-authored code at a non-same-origin URL as where they are placed. We like to be both safe and as permissive as possible with what we allow users to build and test. The sandbox attribute helps us with safety and while

Building a Honeypot Field That Works

by: Zell Liew Mon, 20 Oct 2025 16:11:40 +0000 Honeypots are fields that developers use to prevent spam submissions. They still work in 2025. So you don’t need reCAPTCHA or other annoying mechanisms. But you got to set a couple of tricks in place so spambots can’t detect your honeypot field. Use This I’ve created a Honeypot component that does everything I mention below. So you can simply import and use them like this: <script> import { Honeypot } from '@splendi

Chris’ Corner: Stage 2

by: Chris Coyier Mon, 20 Oct 2025 15:47:26 +0000 We get all excited when we get new CSS features. Well, I do anyway. It’s amazing, because sometimes it unlocks something we’ve literally never been able to do before. It’s wonderful when an artist finishes a new painting, and something to be celebrated. But this is more akin to a new color dropping, making possible a sight never before seen. Just as exciting, to me, is the evolution of new features. Both from the perspective of the feature l

I Used This Open Source Library to Integrate OpenAI, Claude, Gemini to Websites Without API Keys

by: Bhuwan Mishra Mon, 20 Oct 2025 03:31:08 GMT When I started experimenting with AI integrations, I wanted to create a chat assistant on my website, something that could talk like GPT-4, reason like Claude, and even joke like Grok. But OpenAI, Anthropic, Google, and xAI all require API keys. That means I needed to set up an account for each of the platforms and upgrade to one of their paid plans before I could start coding. Why? Because most of these LLM providers require a paid plan for A

LHB Linux Digest #25.31: syslog guide, snippet manager, screen command more

by: Abhishek Prakash Fri, 17 Oct 2025 18:31:53 +0530 Welcome back to another round of Linux magic and command-line sorcery. Weirdly scary opening line, right? That's because I am already in Halloween spirit 🎃 And I'll take this opportunity to crack a dad joke: Q: Why do Linux sysadmins confuse Halloween with Christmas? A: Because 31 Oct equals 25 Dec. Hint: Think octal. Think Decimal. Jokes aside, we are working towards a few new series and courses. The CNCF series should be published next wee

How to Fingerprint Websites With WhatWeb - A Practical, Hands-On Guide

by: Hangga Aji Sayekti Fri, 17 Oct 2025 17:59:33 +0530 This short guide will help you get started with WhatWeb, a simple tool for fingerprinting websites. It’s written for beginners who want clear steps, short explanations, and practical tips. By the end, you’ll know how to run WhatWeb with confidence. What is WhatWeb? Imagine you’re curious about what powers a website: the CMS, web server, frameworks, analytics tools, or plugins behind it. WhatWeb can tell you all that right from the Linux co

Looking for Open Source Kindle Alternatives? Build it Yourself

by: Pulkit Chandak Fri, 17 Oct 2025 05:20:49 GMT The e-ink display technology arrived on the scene as the answer for a long list of issues and desires people had with digital book reading. The strain on the eyes, the distractions, the low battery life—all of it fixed in one swoop. While the most popular option that remains in the category is an Amazon Kindle, not everyone of us would want a DRM-restricted Big Tech ecosystem. As a Linux user and open source enthusiast, I wanted something mo

FOSS Weekly #25.42: Hyprland Controversy, German State with Open Source, New Flatpak App Center and a Lot More Linux Stuff

by: Abhishek Prakash Thu, 16 Oct 2025 04:50:27 GMT In the previous newsletter, I asked what kind of advice someone looking to switch from Windows to Linux would have. I got so many responses that I am still replying to all the suggestions. I am also working on the 'Windows to Linux migration' page. Hopefully, we will have that up by next week. Hope to see more people coming to Linux as Windows 10 support has ended now. 💬 Let's see what you get in this edition: Mastering alias command. A bu

Sequential linear() Animation With N Elements

by: Temani Afif Wed, 15 Oct 2025 13:39:39 +0000 Let’s suppose you have N elements with the same animation that should animate sequentially. The first one, then the second one, and so on until we reach the last one, then we loop back to the beginning. I am sure you know what I am talking about, and you also know that it’s tricky to get such an effect. You need to define complex keyframes, calculate delays, make it work for a specific number of items, etc. Tell you what: with modern CSS, we c

413: Still indie after all these years

by: Chris Coyier Tue, 14 Oct 2025 13:52:25 +0000 We’re over 13 years old as a company now. We decide that we’re not a startup anymore (we’re a “small business” with big dreams) but we are still indie. We’ve seen trends come and go. We just do what we do, knowing the tradeoffs, and plan to keep getting better as long as we can. Links Timeline – Chris Coyier 115: Adam Argyle on Cracking the 2025 Web Dev Interview | Front-End Fire Time Jumps 00:05 Are we still an indie sta

Chris’ Corner: Design (and you’re going to like it)

by: Chris Coyier Mon, 13 Oct 2025 17:01:15 +0000 Damning opening words from Edwin Heathcote in Why designers abandoned their dreams of changing the world. The situation is, if you wanna make money doing design work, you’re probably going to be making it from some company hurting the world, making both you and them complicit. Kinda dark. But maybe it is course correction for designers thinking they are the world’s salvation, a swing too far in the other direction. This pairs very ni

Masonry: Watching a CSS Feature Evolve

by: Saleh Mubashar Mon, 13 Oct 2025 14:31:35 +0000 You’ve probably heard the buzz about CSS Masonry. You might even be current on the ongoing debate about how it should be built, with two big proposals on the table, one from the Chrome team and one from the WebKit team. The two competing proposals are interesting in their own right. Chrome posted about its implementation a while back, and WebKit followed it up with a detailed post stating their position (which evolved out of a third proposa

Important Information

Terms of Use Privacy Policy Guidelines We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.