Posts by Category

Pentesting Resources and Links

1 minute read

Collections of links I have found useful during pentesting, CTFs, or red teaming exercise.

Regex Cheatsheet

1 minute read

Awesome regex cheatsheet I found online. Often, I find myself re-learning regex syntax because I don’t use it often.

GIAC GCIH Certified!… and some tips.

2 minute read

On October 16 2019, I passed GCIH exam with a score of 93%. Honestly, I was surprised I scored so high. I didn’t feel like I had a passing score until 2.5 ho...

Cybersecurity Resourses – Links and more

1 minute read

Often I see posts on Reddit asking “Where do you get your news about cybersecurity from?”. There are many places to get your news from and it varies dependin...

Free Splunk Training for Vets

less than 1 minute read

I just came across a great resource for US Veterans that can help them start or enhance their career cybersecurity. Splunk offers free their Fundamentals tra...

Equifax Security Breach: Degree in Music

1 minute read

Recently, Equifax Inc was target of a hack that may have affected over 143 millions of Americans[0]. It was pointed out that the Equifax’s Chief Security Off...

I am CISSP Certified!

4 minute read

I passed the CISSP exam in April 2021! Such a difficult exam! The exam is nothing like the practice tests you can find available for free or for purchase. Th...

2020 in Retrospection

2 minute read

I took some training

GIAC GCIH Certified!… and some tips.

2 minute read

On October 16 2019, I passed GCIH exam with a score of 93%. Honestly, I was surprised I scored so high. I didn’t feel like I had a passing score until 2.5 ho...

Farewell Census Team!

less than 1 minute read

Today, I close another chapter in my life. After 4 years working for the US Census Bureau, I leave in search of a new and more challenging adventure in an ar...

Bronze Award Recognition

less than 1 minute read

Hack The Box – Networked

4 minute read

Networked was an easy but very interesting box that left me confused at the end. I have not figured out why the final exploit worked but I plan on setting up...

Hack The Box - Swagshop Writeup

3 minute read

Content

Hack The Box - Access Machine Writeup

less than 1 minute read

I have started learning additional offensive techniques and decided to put them to the test on HackTheBox.eu. The first machine I tackled was Access. It is s...

A Comprehensive Guide to Securing SSH on Ubuntu 22.04

2 minute read

SSH (Secure Shell) is a widely used protocol for securely accessing remote servers. However, its popularity also makes it a target for potential attackers. T...

Verify if a media device or file is bootable

less than 1 minute read

To verify if a removable media (e.g. USB, DVD, or ISO) is bootable, you could use file tool on Linux systems. The command file -s /path/to/media reads block ...

Enabling Intel 10G SFP+ X520 Series module on Centos 7

less than 1 minute read

By default, Centos 7 doesn’t support Intel’s 10G SFP+ X520 module. When you look at the dmesg you find the following error: “failed to load because an unsup...

I am CISSP Certified!

4 minute read

I passed the CISSP exam in April 2021! Such a difficult exam! The exam is nothing like the practice tests you can find available for free or for purchase. Th...

GIAC GCIH Certified!… and some tips.

2 minute read

On October 16 2019, I passed GCIH exam with a score of 93%. Honestly, I was surprised I scored so high. I didn’t feel like I had a passing score until 2.5 ho...

NSA Python Training Material

less than 1 minute read

A brave individual (@chris_swenson) placed a Freedom Of Information Act (FOIA) request for NSA’s Python training materials. The course is a text-only documen...

pfSense and Verizon FiOS

2 minute read

I have a small homelab setup at home that I use to practice cyber ninja skills and test new technology. My homelab consist of a refurbished HP Z420 Workstati...

pfSense and Verizon FiOS

2 minute read

I have a small homelab setup at home that I use to practice cyber ninja skills and test new technology. My homelab consist of a refurbished HP Z420 Workstati...

Mini-NetWars – Mission 3 (May 2020)

13 minute read

I forgot to take notes and someone shared their’s with me. I stopped at “Find the name of the debug PCAP on the web server”

[Errno 28] No space left on device - Updating VMWare ESXI 6.7

1 minute read

When updating VMWare ESXI 6.7, which runs my homelab, I always get the error “[Errno 28] No space left on device”. But wait… There is enough space on the dis...

Detecting Unauthorized Intrusions Using Windows Security Event Logs

2 minute read

Maintaining the security of a Windows system is essential to protect sensitive data and prevent unauthorized access. One powerful tool in detecting potential...

Transitioning from WordPress to Jekyll on GitHub Pages

1 minute read

I recently embarked on a tech journey, moving my blog from WordPress hosted on a Digital Ocean droplet to using Jekyll on GitHub Pages. This wasn’t just a le...