On Security

View a history of posts that focus on a broad range of topics related to cybersecurity, with an emphasis on Kubernetes, training resources, and the latest threats.

17 posts

Writing a Report on a Security Incident

Jonathan Peña

Reports must be written in a certain standard; the reader can guess whether the information they want is in the…

3 min read Aug 16, 2024

Lets Defend public

Exploiting GTFOBins: The use of Sudo

Jonathan Peña

Sudo is the application that is used to run existing applications as a superuser (root) or different user privileges on…

2 min read Aug 15, 2024

Lets Defend public

Exploiting GTFOBins: File Downloads

Jonathan Peña

On *nix computers, a number of apps come pre-installed. As a result, attackers can use these apps for a variety…

3 min read Aug 14, 2024

Kubernetes public

How to View and Access Persistent Volumes

Jonathan Peña

What are Persistent Volumes (PVs)? PV is a method for defining storage-related data, like storage classes and storage implementations. In…

2 min read Aug 3, 2024

Kubernetes public

Creating Persistent Storage for Pods

Jonathan Peña

What is persistent storage? Ensuring data persistence in Kubernetes is vital to maintain application state and preserving data during pod…

3 min read Aug 2, 2024