Home on jkt's blogs

Dissecting HackTheBox Pro Labs: The Art of Attacking Enterprise Networks

Sun, 07 Sep 2025 00:00:00 +0000

Introduction

HackTheBox Pro Labs have become a defining benchmark in cybersecurity training, offering immersive, real-world simulation environments designed to push the boundaries of ethical hacking skills. These labs are highly valued by cybersecurity professionals for their realism, complexity, and advanced setup with the latest TTPs.

In this blog post, we will dive into the meat and potatoes of 3 major Pro Labs (Dante, Zephyr, Offshore) and POO mini Pro Labs. We will focus on highlighting their core challenges, learning outcomes, and what makes each lab a unique training ground. Whether you’re a seasoned professional or a novice seeking a challenge, I hope this guide brings some clarity and helps you decide which Pro Labs to tackle next.

ArcGIS Web App: Overview, Common Issues, Solutions & Best Practices

Fri, 20 Jun 2025 00:00:00 +0000

Notice: This is part of the GeoTech Logbook Series. If you are dealing with GIS-based systems, I hope you find some useful insights regardless of your background.

Introduction

ArcGIS web applications are essential tools for organizations seeking to visualize, analyze, and share spatial data interactively. Two primary platforms — ArcGIS Experience Builder and Web AppBuilder — offer powerful, flexible solutions for building these web apps. However, users frequently encounter challenges during configuration and deployment.

ArcGIS Printing Services Made Simple: Frequent Issues, Fixes, and Proven Tips

Sat, 07 Jun 2025 00:00:00 +0000

Disclaimer: While this might not align with typical OpSec content, this article is part of the GeoTech Logbook Series sharing GIS-related insights, technical notes, and observations for future reference and community sharing.

Introduction

Printing maps is one of the fundamental workflow in many GIS organizations. However, configuring and maintaining ArcGIS Enterprise printing services can present a variety of complex challenges from failing print jobs to inconsistent output quality.

ArcGIS Feature Services: Common Issues, Tips and Effective Solutions

Fri, 06 Jun 2025 00:00:00 +0000

Heads-up: This post may differ from the usual OpSec content. It’s part of my GeoTech Logbook Series, centered around GIS insights where I explore and document practical GIS challenges and lessons.

Introduction

ArcGIS Feature Services play a critical role in enabling dynamic, editable web maps and applications by serving geographic data over the web. However, managing these services in ArcGIS Enterprise or ArcGIS Online can present challenges especially when errors prevent publishing, accessing, or interacting with features.

My Journey Through Cybersecurity: Degree, Certifications, and Hands-on Labs

Tue, 27 May 2025 00:00:00 +0000

Introduction

Quick note before we begin, I am an aspiring offensive security professional with a growing portfolio of certifications and hands-on experience, particularly through platforms like INE (formally known as eLearnSecurity), TryHackMe, and HackTheBox. While I have made significant progress in my learning journey, I am still early in my career. This review reflects my personal experiences and observations so far, and I highly encourage readers to consider multiple perspectives when planning their own cybersecurity education paths.

RH124, RH134 & DO457 - Key Concepts, Learning Resources and Insights

Sat, 22 Feb 2025 00:00:00 +0000

Introduction

Linux is a very common topic nowadays in the world of software development, system administration, DevOps, database management, and security operations. In this blog, I tried to cover as much as I could not only on RH124, RH134, and DO457 but also on Linux in general, highlighting useful materials and resources for future reference.

Disclaimer: It’s crucial to understand your learning style then adapt to what is most convenient for yourself. There are several ways to learn and master Linux, whether from official documentation, YouTube channels, or third-party providers. Feel free to share and recommend more tips and materials. Let’s dive in!

Arch Linux Vs Pop!_OS: The Ultimate Guide for Developers and Security Experts

Thu, 23 Jan 2025 00:00:00 +0000

Introduction

As a junior security researcher and system administrator, I’ve had the opportunity to use multiple Linux distributions including Kali Linux, Parrot OS, Ubuntu, Pop!_OS, and my personal favorite Arch Linux. Each distro has its strengths and weaknesses catering to different user needs.

This might seem surprising to some, but I don’t use Kali Linux much despite its “ready to use” philosophy — keep reading and you might understand why. In this blog, I’ll break down my experience with Pop!_OS and Arch Linux, the pros, cons, and use cases. By the end, you should be able to identify the best fit for your workflow.

TryHackMe Offensive PenTesting Pathway — Full Review

Mon, 13 Jan 2025 00:00:00 +0000

Overview

In my journey of sharing experiences about TryHackMe learning paths, here is another blog covering the Offensive Pentesting Path. This path’s main deliverable is to equip individuals with essential penetration testing skills, focusing on practical labs in web applications and network security. The path also highlights industry-standard tools and methodologies to find vulnerabilities, preparing learners for real-world testing and certifications.

Section 1: Getting Started

Designed with ease and simplicity, this section gives a step-by-step walkthrough on how to connect to VPN, perform basic enumerations, exploitation, and privilege escalation. A great foundation for anyone new to the field.

TryHackMe Red Teaming Pathway — Full Review

Fri, 06 Dec 2024 00:00:00 +0000

Introduction

The Red Teaming path on TryHackMe is designed to take you beyond traditional penetration testing, immersing you in the art of adversary simulation. This pathway focuses on teaching you how to mimic real-world attackers, leveraging stealth and advanced tactics to challenge the defensive capabilities of an organization. You’ll learn to navigate complex environments, bypass security controls, and maintain persistence while adhering to operational security principles.

TryHackMe CompTIA PenTest+ Pathway — Full Review

Wed, 27 Nov 2024 00:00:00 +0000

Introduction

The CompTIA PenTest+ pathway helps learners build practical skills for penetration testing and vulnerability assessment. While I lack direct experience with the PenTest+ exam itself, this pathway offers hands-on labs and exposure to key tools, techniques, and post-exploitation tactics relevant for offensive security.

Section 1: Planning and Scoping

Focuses on the foundations of penetration testing, project planning, scoping engagements, and understanding governance and regulations. Valuable insights into setting clear objectives, identifying client needs, and aligning with legal frameworks.

Data Recovery on Linux Using ldmtool

Mon, 11 Nov 2024 00:00:00 +0000

Introduction

Data recovery can be a lifesaver, especially when dealing with Logical Disk Manager (LDM) volumes. Using ldmtool a utility designed for managing Windows LDM partitions on Linux, we can mount and access these volumes easily.

In this guide, we will explore the use of ldmtool to scan and mount LDM volumes, as well as steps using GParted to format additional disks. We also cover ldmtool installation across different Linux distributions including Arch Linux, Debian, and Red Hat.

About

Mon, 01 Jan 0001 00:00:00 +0000

👋 Who Am I?

I’m Justin (aka JKT), a driven technology professional with hands‑on expertise in ArcGIS Enterprise, offensive security, and automation scripting. I diagnose complex geospatial problems and deliver reliable, high‑quality solutions for end users. I author knowledge articles, support enterprise usage, mentor team members and resolve complex global escalations. Disciplined and curious, I continuously advance my skills through hands‑on labs and industry certifications.
⬇ Download Resume

Work Experience

GIS Enterprise Support Analyst - Esri Malaysia (Mar 2025 – Present)