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

Tutorials

Harden and Secure Linux Servers by Level (1 - 6)

Securing a Linux server is an ongoing challenge. Every day, bad actors attempt to penetrate systems worldwide, using VPNs, IP spoofing, and other evasion tactics to obscure their origins. The source of an attack is often the least of your concerns, what matters most is implementing strong security measures to deter threats and protect your infrastructure. Hardening your servers not only makes them more resilient but also forces attackers to either move on or, ideally, abandon their efforts altog
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 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 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
Tutorials

JavaScript Skill Progression: The Path from Beginner to Extreme

{{#anchor-lvl1}} Level 1 - The Foundations: Understanding JavaScript Basics Introduction to JavaScript: What it is, how it works, and where it runs (browsers, Node.js). (part 1) JavaScript Variables & Data Types: var, let, const, and primitive types (String, Number, Boolean, Undefined, Null, Symbol, BigInt). (part 2) JavaScript Operators & Expressions: Arithmetic, comparison, logical, and assignment operators. (part 3) JavaScript Conditional Statements: if, else, switch. (part 4) Jav
Tutorials

Literal Characters (Page 3)

The simplest regular expressions consist of literal characters. A literal character is a character that matches itself. For example, the regex «a» will match the first occurrence of the character "a" in a string. Consider the string "Jack is a boy": this pattern will match the "a" after the "J". It’s important to note that the regex engine doesn’t care where the match occurs within a word unless instructed otherwise. If you want to match entire words, you’ll need to use word boundaries, a concep
Tutorials

Different Regular Expression Engines (Page 2)

A regular expression engine is a software component that processes regex patterns, attempting to match them against a given string. Typically, you won’t interact directly with the engine. Instead, it operates behind the scenes within applications and programming languages, which invoke the engine as needed to apply the appropriate regex patterns to your data or files. Variations Across Regex Engines As is often the case in software development, not all regex engines are created equal. Different
Tutorials

Regular Expression Tutorial (Page 1)

Table of Contents Regular Expression Tutorial Different Regular Expression Engines Literal Characters Special Characters Non-Printable Characters First Look at How a Regex Engine Works Internally Character Classes or Character Sets The Dot Matches (Almost) Any Character Start of String and End of String Anchors Word Boundaries Alternation with the Vertical Bar or Pipe Symbol Optional Items Repetition with Star and Plus Grouping with Round Brackets Named Capturing Groups Unicode Re
Linux

Walkthrough: Setting Up BackupNinja to Back Up a Website on Linux to a Windows Machine Using SMB

Prerequisites Before proceeding, ensure the following components are in place: BackupNinja Installed Verify BackupNinja is installed on your Linux server. Command: sudo apt update && sudo apt install backupninja Common Errors & Solutions: Error: "Unable to locate package backupninja" Ensure your repositories are up-to-date: sudo apt update Enable the universe repository on Ubuntu/Debian systems: sudo add-apt-

9 Best Free Node.js Hosting 2025

by: Zainab Sutarwala Thu, 09 Jan 2025 10:46:00 +0000 Are you looking for the best free Nodejs hosting platforms? You are at the right place. Node.js is a highly popular JavaScript open-source server environment used by many developers across the world. Right from its commencement in 2009, the server has grown in huge popularity and is used by a lot of businesses. The industry and business sectors primarily make use of Node.js. At present, Node.js is a most loved and well-known open-source serve
Linux

FOSS Weekly #25.02: Absolute Linux, ShredOS, AI in Kdenlive, Fossify File Manager and More

by: Abhishek Prakash The holidays are over and so do the Tuxmas Days. 12 days of 12 new features, changes and announcements. As mentioned on Tuxmas Day 11, It's FOSS Lifetime membership now also gets you lifetime Reader-level membership of Linux Handbook, our other portal focused on sysadmin, DevOps and self-hosting. If you are one of the 73 people (so far) who opted for the Lifetime plan, you'll get a separate email on Linux Handbook's membership. Meanwhile, please download the 'Linux for De

Installing Listmonk - Self-hosted Newsletter and Mailing List Manager

As a tech-enthusiast content creator, I'm always on the lookout for innovative ways to connect with my audience and share my passion for technology and self-sufficiency. But as my newsletter grew in popularity, I found myself struggling with the financial burden of relying on external services like Mailgun - a problem many creators face when trying to scale their outreach efforts without sacrificing quality. That's when I discovered Listmonk, a free and open-source mailing list manager that not

LambdaTest Review 2025 – Features, Pricing, Pros & Cons

by: Zainab Sutarwala Tue, 07 Jan 2025 11:33:00 +0000 LambdaTest has today emerged as a popular name especially in the field of cross-browser testing, helping businesses and developers to ensure the functionality and compatibility of their web applications over a wide variety of devices and browsers. With the quick evolution of web technologies and the diverse landscape of devices and browsers, cross-browsing testing today has become an indispensable feature of web development. LambdaTest mainly

Chris’ Corner: User Control

by: Chris Coyier Mon, 06 Jan 2025 20:47:37 +0000 Like Miriam Suzanne says: I like the idea of controlling my own experience when browsing and using the web. Bump up that default font size, you’re worth it. Here’s another version of control. If you publish a truncated RSS feed on your site, but the site itself has more content, I reserve the right to go fetch that content and read it through a custom RSS feed. I feel like that’s essentially the same thing as if I had an elaborate us

The Importance of Investing in Soft Skills in the Age of AI

by: Andy Bell Mon, 06 Jan 2025 14:58:46 +0000 I’ll set out my stall and let you know I am still an AI skeptic. Heck, I still wrap “AI” in quotes a lot of the time I talk about it. I am, however, skeptical of the present, rather than the future. I wouldn’t say I’m positive or even excited about where AI is going, but there’s an inevitability that in development circles, it will be further engrained in our work. We joke in the industry that the suggestions that AI gives us are more often than
Linux

Getting Started With Linux Terminal

by: Abhishek Prakash The Linux terminal could be intimidating. The dark screen with just commands to use. It's easy to feel lost. The thing is that Linux command line is a vast topic. You can manage the entire system using just the commands. I mean that's the role of sysadmins, network engineers and many other jobs. The aim of this tutorial collection is not to make you job-ready. It intends to give you the starting point of your Linux command line journey. It will give you enough to navigate

Understanding File Descriptors in Linux

File descriptors are a core concept in Linux and other Unix-like operating systems. They provide a way for programs to interact with files, devices, and other input/output (I/O) resources. Simply put, a file descriptor is like a "ticket" or "handle" that a program uses to access these resources. Every time a program opens a file or creates an I/O resource (like a socket or pipe), the operating system assigns it a unique number called a file descriptor. This number allows the program to read, w
Linux

Autostart AppImage Applications in Linux

by: Abhishek Prakash One of the main downside of using AppImages is the lack of desktop integration. This can be achived using AppImage Launcher tool. Another problematic part is the lack of support for autostarting an AppImage application when the system restarts. With some effort, you can achieve that, too. The method involves twp steps: Creating a desktop file for the application Adding this desktop file to autostart application list Let me show you the process in detail. Step 1: Create

How to Change Your Prompt in Bash Shell in Ubuntu

I don’t like my prompt, i want to change it. it has my username and host, but the formatting is not what i want. This blog will get you started quickly on doing exactly that. This is my current prompt below: To change the prompt you will update .bashrc and set the PS1 environment variable to a new value. Here is a cheatsheet of the prompt options: You can use these placeholders for customization: \u – Username \h – Hostname \w – Current working directory \W – Basename of the current wo

7 Best AI Interview Tools 2025

by: Zainab Sutarwala Sun, 05 Jan 2025 11:25:00 +0000 In a fast-paced and competitive job marketplace, an interview needs not only good industry knowledge but also a very high level of confidence and adaptability. Luckily, technology provides some of the most innovative solutions that will help the candidates to prepare efficiently for their important day. AI-powered interview preparation tools are now revolutionizing the way job hunters approach the interviews, offering personalized feedback, a

9 Best AI Tools for Programming Assistance in 2025

by: Neeraj Mishra Fri, 03 Jan 2025 16:28:00 +0000 Artificial Intelligence (AI) is revolutionizing software development by enhancing productivity, improving code quality, and automating routine tasks. Developers now have access to various AI-powered tools that assist in coding, debugging, and documentation. This article provides a detailed overview of the best AI programming tools in 2025. 1. GitHub Copilot It is one of the most popular AI-powered coding assistant tools developed by GitHub and O
Linux

FOSS Weekly #25.01: 2 New Free Books, Homelab Dashboards, Plan 9 and More

by: Abhishek Prakash Happy new year 2025 🥳 The Tuxmas Days continue in full swing. Main highlights are: Tuxmas Day 3 introduced the new commenting system. You'll see it in action when you leave a comment on the website. Tuxmas Day 4 introduced the lifetime membership option. Instead of a recurring fee, you get the Plus membership forever with a single payment of $76 till 7th January. After that it will be $99. If you wanted to support It's FOSS with Plus membership, this would be the best tim
Linux

FOSS Weekly #25.01: 2 New Free Books, Homelab Dashboards, Plan 9 and More

by: Abhishek Prakash Thu, 02 Jan 2025 06:11:30 GMT Happy new year 2025 🥳 The Tuxmas Days continue in full swing. Main highlights are: Tuxmas Day 3 introduced the new commenting system. You'll see it in action when you leave a comment on the website. Tuxmas Day 4 introduced the lifetime membership option. Instead of a recurring fee, you get the Plus membership forever with a single payment of $76 till 7th January. After that it will be $99. If you wanted to support It's FOSS with Plus membershi
Linux

FOSS Weekly #25.01: 2 New Free Books, Homelab Dashboards, Plan 9 and More

by: Abhishek Prakash Thu, 02 Jan 2025 06:11:30 GMT Happy new year 2025 🥳 The Tuxmas Days continue in full swing. Main highlights are: Tuxmas Day 3 introduced the new commenting system. You'll see it in action when you leave a comment on the website. Tuxmas Day 4 introduced the lifetime membership option. Instead of a recurring fee, you get the Plus membership forever with a single payment of $76 till 7th January. After that it will be $99. If you wanted to support It's FOSS with Plus membershi

ScraperAPI Review 2025 – Scrape Data at Scale Easily

by: Pulkit Govrani Wed, 01 Jan 2025 17:55:00 +0000 Web scraping is the process by which we extract data from the websites. If you are a programmer then you can write complete code to scrape data as per your needs. Different programming languages like Python or JavaScript can be used along with their libraries i.e., selenium and puppeteer to scrape information from the websites. In this article, we have reviewed a great scraping API that lets you perform data collection easily at scale. About Sc

W3Schools Offline Version Download 2025

by: Neeraj Mishra Wed, 01 Jan 2025 07:59:00 +0000 Here you get the link for w3schools offline version download (latest full website). W3Schools is an educational website that provides web development tutorials. It covers topics like HTML, CSS, JavaScript, PHP, ASP.Net, SQL, and many more. W3Schools is getting more than 35 million visits per month and it is the most popular web development website on the internet. The tutorials are very helpful for beginners to learn web development. It also p

Thank You (2024 Edition)

by: Geoff Graham Mon, 30 Dec 2024 16:15:37 +0000 I’ll be honest: writing this post feels like a chore some years. Rounding up and reflecting on what’s happened throughout the year is somewhat obligatory for a site like this, especially when it’s a tradition that goes back as far as 2007. “Hey, look at all the cool things we did!” This year is different. Much different. I’m more thankful this time around because, last year, I didn’t even get to write this post. At this time last year, I was
Programming

17 Subtle Rules of Software Engineering

List By: Miko Pawlikowski  Descriptions By: Jessica Brown Published: December 29, 2024 Software engineering is a discipline that balances technical precision, creativity, and collaboration. These 17 subtle rules provide insights to improve the quality of code, foster teamwork, and guide sustainable practices. 0. Stop Falling in Love with Your Own Code When you become too attached to your code, you may resist valuable feedback or overlook its flaws. Always prioritize the quality of the solution

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.