Security on Amit Agarwal Linux Blog

Ollama Security Hardening: Practical Guide for Cloud Deployments

Sun, 22 Mar 2026 00:00:00 +0530

A no-nonsense, actionable guide to securing Ollama for cloud deployments. Covers network lockdown, reverse proxy setup, OS hardening, prompt filtering, supply chain control, and advanced strategies.

Don’t Enter Your Password Into That Website: A Rant You Need to Hear

Thu, 01 May 2025 00:00:00 +0530

Don’t Enter Your Password Into That Website: A Rant You Need to Hear

Let me set the stage.

I came across a YouTube video the other day where the creator casually suggested that you can “check if your password has been leaked” by typing it directly into a website or tool. It was not a very popular content creator, none the less, I think we need to talk about this.

What's New in Nmap: A Look at the Latest Features

Sun, 27 Oct 2024 00:00:00 +0530

Introduction

The Nmap (Network Mapper) tool has long been a favorite among cybersecurity professionals and network administrators for its robust scanning capabilities. Whether you’re performing a network inventory, managing service upgrades, or simply checking for potential vulnerabilities, Nmap is an indispensable tool.

With the latest release (v7.95) released on 2024/April/23, Nmap continues to evolve, adding new features, improving performance, and expanding its capabilities. In this post, we’ll take a look at the most notable changes and enhancements that come with the latest version.

HTTPSorHTTP

Sun, 08 Sep 2024 00:00:00 +0530

The Illusion of Web Security: A Cautionary Tale

Alex was a bright developer. Fresh out of college and eager to make a mark, he landed a job at a promising tech startup. His first major project: build a new web application for the company’s clients. As Alex dove into the world of code, he kept hearing the same advice from his peers and mentors: “Make sure the site uses HTTPS. It’s the gold standard for web security.”